Impact of oral onditions on Quality of Life in Peruvian Preschoolers in Rural and Urban Areas / Impacto de las alteraciones bucales en la calidad de vida de preescolares peruanos de zonas rurales y urbanas

Abstract The objective of this study is to determine the impact of oral conditions on the quality of life related to the oral health of preschool children in a rural and urban area of Cusco. The study was descriptive and cross-sectional, from a population of 179 preschoolers aged 3 to 5 years, from two public early childhood education institutions, and their respective parents or caregivers in the department of Cusco, Peru. We worked with the entire population that met the inclusion and exclusion criteria, seventy-four preschool children were selected for each area, deciding to have the same amount of children per group based on the smallest group. A clinical odonto-stomatological examination was carried out for oral conditions (dental caries, malocclusion, and dental trauma) according to the WHO's criteria and a survey that was used for sociodemographic characteristics. In addition, a validated Peruvian version of the ECOHIS questionnaire was used to obtain data on the impact on quality of life. All the variables of the total and individual scores of the ECOHIS domains were analyzed individually and the Kruskal-Wallis test was used to determine the association between variables. The oral conditions prevalence in preschool children in rural areas referring to dental caries was 100% (dmft index > 6), dental trauma 10.8%, and malocclusions 60.8%; for the urban area dental caries was 93.2% (dmft index > 6), dental trauma 9.5% and malocclusions 36.5%. Of the three oral conditions only the experience of dental caries was related to the OHRQOL of preschoolers in urban and rural areas.

Resumen El objetivo de este estudio es determinar el impacto de las alteraciones bucales en la calidad de vida relacionada con la salud bucal de niños preescolares de una zona rural y urbana de Cusco. El estudio fue descriptivo y transversal, de una población de 179 preescolares de 3 a 5 años de edad, de dos instituciones públicas de educación inicial, y sus respectivos padres o cuidadores en el departamento de Cusco, Perú. Se trabajó con toda la población que cumplió con los criterios de inclusión y exclusión, se seleccionaron setenta y cuatro niños preescolares por cada área, decidiendo tener la misma cantidad de niños por grupo en base al grupo más pequeño. Se realizó un examen clínico odonto-estomatológico para detectar alteraciones bucales (caries dental, maloclusión y trauma dental) según los criterios de la OMS y una encuesta que se utilizó para las características sociodemográficas. Además, se utilizó una versión peruana validada del cuestionario ECOHIS para obtener datos sobre el impacto en la calidad de vida. Todas las variables de los puntajes totales e individuales de los dominios ECOHIS fueron analizadas individualmente y se utilizó la prueba de Kruskal-Wallis para determinar la asociación entre variables. La prevalencia de alteraciones bucales en niños preescolares de zonas rurales referida a caries dental fue del 100% (índice dmft > 6), traumatismo dental 10,8% y maloclusiones 60,8%; para la zona urbana la caries dental fue del 93,2% (índice dmft > 6), el traumatismo dental 9,5% y las maloclusiones 36,5%. De las tres alteraciones bucales, sólo la experiencia de caries dental se relacionó con la OHRQOL de los preescolares de las zonas urbana y rural.

Prevalencia de Anomalías Dentomaxilares y Necesidad de Tratamiento Ortodóncico en Escolares del Pueblo Originario Rapa Nui / Prevalence of Dentomaxillary Anomalies and Need for Orthodontic Treatment in School Children of the Rapa Nui Native People

El objetivo de este estudio fue determinar la prevalencia de anomalías dentomaxilares y la necesidad de tratamiento ortodóncico en escolares pertenecientes al pueblo originario de Rapa Nui. Se realizó un estudio descriptivo, observacional, transversal y no probabilístico. Se evaluaron 85 alumnos entre primero básico y primero medio, entre los 6 y 16 años de edad, de dos colegios de Rapa Nui. Se realizó un examen clínico estandarizado, realizado por dos investigadores previamente calibrados, donde se completó una ficha clínica diseñada para el estudio. Para el análisis de las anomalías dentomaxilares se realizó un escaneo digital de la cavidad oral completa para su posterior análisis. De 85 estudiantes evaluados, 75 (88,2 %) se encontraban afectados por algún tipo de anomalía dentomaxilar en el plano sagital, vertical y/o transversal, independiente de su gravedad. Un 87,1 % de los estudiantes necesitan tratamiento ortodóncico según el Índice de Necesidad de Tratamiento Ortodóncico, de los cuales un 57,7, % se clasificó dentro de los rangos de moderado, grave y muy grave. Existe una alta prevalencia de anomalías dentomaxilares en los escolares pertenecientes al pueblo originario Rapa Nui, encontrándose por sobre las cifras nacionales como internacionales, lo cual da como resultado que la mayoría de los alumnos evaluados necesiten de algún tipo tratamiento ortodóncico, ya sea preventivo, interceptivo y/o correctivo.

The aim of this study was to determine the prevalence of dentomaxillary anomalies and the need for orthodontic treatment in schoolchildren belonging to the Rapa Nui native people. A descriptive, observational, cross- sectional and non-probabilistic study was carried out. Eighty- five students between first grade and first middle school, between 6 and 16 years of age, from two schools of Rapa Nui were evaluated. A standardized clinical examination was performed by two previously calibrated investigators, where a clinical record designed for the study was completed. For the analysis of dentomaxillary anomalies, a digital scan of the full mouth was performed for subsequent analysis. Of 85 students evaluated, 75 (88.2 %) were affected by some type of dentomaxillary anomaly in the sagittal, vertical and/or transversal plane, regardless of its severity. Some 87.1 % of the students needed orthodontic treatment according to the Orthodontic Treatment Need Index, of which 57.7 % were classified within the moderate, severe and very severe ranges. There is a high prevalence of dentomaxillary anomalies in schoolchildren belonging to the Rapa Nui native people, which is above the national and international figures, resulting in the majority of the students evaluated needing some type of orthodontic treatment, whether preventive, interceptive and/or corrective.

Relação entre desmame precoce, desenvolvimento de hábitos bucais deletérios e maloclusões na infância / Relationship between early weaning, development of harmful oral habits and malocclusions in childhood

Objetivo: o objetivo desta pesquisa foi analisar a associação do tempo de aleitamento materno com a prática de hábitos deletérios e o desenvolvimento de maloclusões na primeira infância. Materiais e Métodos: foram aplicados 171 formulários às mães com 18 anos ou mais que acompanharam o processo de amamentação de seu(s) filho(s) de 4 a 10 anos de idade. O questionário foi composto por 22 perguntas, sendo 15 específicas e relacionadas ao aleitamento, hábitos deletérios da criança (uso de chupeta, sucção de dedo e sucção do próprio lábio) e maloclusões específicas (mordida cruzada posterior, mordida cruzada anterior e mordida aberta). Resultados: a prevalência da amamentação exclusiva por 6 meses ou mais foi de 52%, enquanto 29,8% das crianças foram amamentadas de 0 a 5 meses e 18,2% nunca foram amamentadas no seio exclusivamente. Quanto a alimentação complementar, grande parcela (37,4%) encontrada evidenciou início após os 6 meses; 57,9% das mães relataram algum tipo de dificuldade para amamentar e 34,5% das crianças fizeram uso de chupeta. Em relação aos hábitos deletérios, 10% desenvolveram sucção de dedo. O relato de desenvolvimento de maloclusões foi de 9,4% das crianças com mordida cruzada posterior; 7,6% mordida cruzada anterior e 18,7% mordida aberta anterior. Conclusão: sendo assim, é possível inferir que o tempo preconizado pela Organização Mundial da Saúde para aleitamento materno exclusivo foi fundamental para o não desenvolvimento de hábitos deletérios e maloclusões. Em contrapartida, quanto mais cedo a introdução de alimentos complementares, e a interrupção do aleitamento exclusivo nos seis primeiros meses, maior o risco do desenvolvimento de hábitos e consequentemente maloclusões.

Objective: the objective of this research was to analyze the association of breastfeeding duration with the practice of deleterious habits and the development of malocclusions in early childhood. Materials and Methods: a total of 171 forms were applied to mothers aged 18 years or older who followed the breastfeeding process of their child(ren) between 4 and 10 years of age. The questionnaire consisted of 22 questions, 15 of which were specific and related to breastfeeding, the child's deleterious habits (use of a pacifier, finger sucking and lip sucking) and specific malocclusions (posterior crossbite, anterior crossbite and open bite). Results: the prevalence of exclusive breastfeeding for 6 months or more was 52%, while 29.8% of children were breastfed from 0 to 5 months and 18.2% were never exclusively breastfed. As for complementary feeding, a large portion (37.4%) found to start after 6 months; 57.9% of the mothers reported some type of difficulty in breastfeeding and 34.5% of the children used a pacifier. Regarding deleterious habits, 10% developed finger sucking. The report of development of malocclusions was 9.4% of children with posterior crossbite; 7.6% anterior crossbite and 18.7% anterior open bite. Conclusion: therefore, it is possible to infer that the time recommended by the World Health Organization for exclusive breastfeeding was fundamental for the non-development of deleterious habits and malocclusions. On the other hand, the earlier the introduction of complementary foods and the interruption of exclusive breastfeeding in the first six months, the greater the risk of developing habits and, consequently, malocclusions.

Craniofacial abnormalities and malocclusion findings in sickle cell disease related to ethnic-racial populations: a critical review of the literature

Introduction: sickle Cell Disease (SCD) is an inherited, hematological, chronic disease that mostly affects racial/ethnic groups. The dental literature discusses SCD's oral symptoms, such as malocclusion and craniofacial abnormalities, without considering the significance of a racial/ethnic perspective. Objective: this article critically reviewed the findings of the studies based on a racial/ethnic standpoint and SCD landmarks. Sources of data: primary and secondary searches selected 146 studies from four scientific literature databases. Two reviewers independently extracted data from eleven included studies. Synthesis of data: most studies used lateral cephalometry and reported craniofacial abnormalities and malocclusions, such as maxillary protrusion, class II skeletal patterns, vertical facial growth patterns, convex facial profile, mandibular retrusion, and the posterior rotation of the jaw. However, there is no mention of racial or ethnic cephalometric patterns to support these findings in the studied populations. In addition, a misunderstanding occurs when overlooking the different periods of growth or ages within and between the studied groups. Furthermore, there is no mention of previous orthodontic treatment. By contrast, there is a lack of information about the medically compromised health status of people with SCD, such as the life period of SCD's diagnosis; the number and timing of blood transfusions; the medical history of hospitalizations, vaso-occlusive crises, or hydroxyurea use. Conclusion: racial and ethnic concerns for the diagnosis of malocclusions and craniofacial anomalies, as well as SCD landmarks, are underappreciated in the examined dental literature. Discarding them also demonstrates institutional racism.

Introdução: a doença falciforme é uma doença hematológica, hereditária, crônica, que afeta principalmente, a população negra, em escala global. Na literatura odontológica, os achados craniofaciais e oclusais relacionados à doença falciforme são discordantes, mas, em comum, desconsideram a perspectiva racial. Objetivo: este artigo revisou criticamente a literatura odontológica e discutiu os achados encontrados na perspectiva racial/étnica. Fonte dos dados: estudos primários e secundários selecionaram 146 ocorrências de quatro bases de dados da literatura científica. Dois revisores extraíram independentemente os dados dos onze estudos incluídos. Síntese dos dados: com base na cefalometria lateral, a maioria dos estudos concluiu que as anormalidades craniofaciais e maloclusões, como protrusão maxilar, padrão esquelético de classe II, padrão de crescimento facial vertical, perfil facial convexo, retrusão mandibular e rotação posterior da mandíbula foram os mais comuns achados para pessoas com doença falciforme. No entanto, ao considerar a perspectiva étnico-racial, não há menção na maioria dos estudos de ajustes dos padrões cefalométricos específicos para as populações racializadas, nem tampouco são consideradas características do grupo populacional e da doença falciforme em si, como sua severidade, o momento de vida em que o diagnóstico ocorreu, número e período de hemotransfusões, internações, crises vaso-oclusivas ou uso de hidroxiureia. Além disso, a ampla faixa etária em diferentes períodos de crescimento ósseo e a ausência de informação sobre tratamento ortodôntico prévio foram observadas. Conclusão: há omissão sobre considerações étnico-raciais para relatar anormalidades craniofaciais e maloclusões sobre doença falciforme na literatura odontológica revisada. Isto pode ser uma expressão do racismo.

Prevalence of tooth loss, bleeding on probing and malocclusion as oral disease indicators in Costa Rican male adolescents: a cross sectional study / Prevalencia de la pérdida de piezas dentales, del sangrado al sondeo y la maloclusión como indicadores de enfermedades orales en adolescentes varones costarricenses: un estudio transversal

The evidence to characterize oral health during adolescence in Costa Rica is limited. This lack of adequate research makes it difficult to develop appropriate health policies for this subgroup of the population. This is particularly important because adolescence is the period during which good health habits must take root in order to foster good physical and cognitive development. This study aims to determine the prevalence of tooth loss, bleeding on probing and malocclusion in Costa Rican male adolescents at the ''Colegio Técnico Profesional San Agustín'' (St. Augustine's Technical High School) located in the province of Cartago. Data was collected from 428 male adolescents aged 12-22 years in a cross-sectional study during 2019. Prevalence of tooth loss was calculated as the number of individuals having lost at least one tooth. The average number of teeth lost by individuals was also recorded. The bleeding on probing was an indicator used as a proxy parameter for monitoring periodontal health where the presence of bleeding on probing and calculus was also recorded. Malocclusion was measured using the Dental Aesthetic Index (DAI). The results showed that the prevalence of tooth loss, bleeding on probing and malocclusion was of 19%, 70.0% and 98%, respectively. It was also found that 81% of the participants had all their teeth, 11% had lost 1 tooth, 8% had lost more than one tooth of which 0.5% had lost more than 5 teeth. Considering a general classification of periodontal problems based on bleeding on probing and presence of calculus, the prevalence of periodontal problems increases to 92%. Regarding the DAI, the category identifying a very severe malocclusion was the most prevalent in the sample (88%). It is alarming the high prevalence of tooth loss, bleeding on probing, and malocclusions in a sample of Costa Rican male adolescents, compared to similar studies in other countries. The overarching conclusion of this study is that oral diseases represent an important health problem that urgently need proper public health action.

La evidencia para caracterizar la salud bucal durante la adolescencia en Costa Rica es limitada. Esta falta de investigación adecuada dificulta el desarrollo de políticas de salud convenientes para este subgrupo de la población. Esto es particularmente importante porque la adolescencia es el período durante el cual se deben arraigar buenos hábitos de salud para fomentar un buen desarrollo físico y cognitivo. Este estudio tiene como objetivo determinar la prevalencia de pérdida de piezas dentales, sangrado al sondeo y maloclusión en adolescentes varones costarricenses del Colegio Técnico Profesional San Agustín ubicado en la provincia de Cartago. Se recopilaron datos de 428 adolescentes varones de 12 a 22 años en un estudio transversal durante 2019. La prevalencia de pérdida de piezas dentales se calculó como el número de individuos que habían perdido al menos una pieza dental. También se registró el número promedio de dientes perdidos por individuos. El sangrado al sondeo fue un indicador utilizado como parámetro para el seguimiento de la salud periodontal donde también se registró la presencia de sangrado al sondeo y cálculo dental. La maloclusión se midió utilizando el Índice Estético Dental (DAI, por sus siglas en inglés). Los resultados mostraron que la prevalencia de pérdida de piezas dentales, sangrado al sondeo y maloclusión fue del 19%, 70,0% y 98%, respectivamente. También se encontró que el 81% de los participantes tenían todos sus dientes, el 11% había perdido 1 pieza dental, el 8% había perdido más de una pieza dental, de los cuales el 0,5% había perdido más de 5 piezas dentales. Considerando una clasificación general de problemas periodontales basada en sangrado al sondeo y presencia de cálculo, la prevalencia de problemas periodontales aumenta al 92%. En cuanto al DAI, la categoría que identifica una maloclusión muy severa fue la más prevalente en la muestra (88%). Es alarmante la alta prevalencia de pérdida de piezas dentales, sangrado al sondeo y maloclusiones en una muestra de adolescentes varones costarricenses, en comparación con estudios similares en otros países. La conclusión general de este estudio es que las enfermedades bucodentales representan un importante problema de salud que necesita urgentemente una acción adecuada de salud pública.

Análise comparativa entre a influência da amamentação e hábitos bucais deletérios no crescimento craniofacial / Comparative analysis between the influence of breastfeeding and deleterial oral habits on craniofacial growth

A adoção da chupeta e mamadeira pelos pais podem trazer problemas no desenvolvimento craniofacial da criança. A sucção digital é outro fator influenciador da má formação da face, este pode ser antecedido pela mamadeira e chupeta. O conhecimento sobre o desenvolvimento facial correto ajuda no reconhecimento de desvios da normalidade. Foi realizada uma revisão da literatura a fim de analisar e comparar os efeitos no crescimento facial entre os hábitos deletérios e a amamentação fisiológica. Muitos registros de malformações causadas por hábitos deletérios foram encontrados. Conclui-se que a amamentação natural ainda é a melhor forma de alimentação para crianças, e nenhuma outra opção será melhor que a fisiológica, sendo aconselhável evitar o uso dos demais(AU)

The adoption of pacifiers and bottles by parents can bring problems in the child's craniofacial development. Finger sucking is another factor influencing the malformation of the face, which can be preceded by the bottle and pacifier. Knowledge about correct facial development helps in recognizing deviations from normality. A literature review was carried out in order to analyze and compare the effects on facial growth between harmful habits and physiological breastfeeding. Many records of malformations caused by deleterious habits were found. It is concluded that natural breastfeeding is still the best form of feeding for children, and no other option will be better than the physiological one, being advisable to avoid the use of the others(AU)

Influencia del pie como receptor en la postura corporal, la simetría facial y cráneo-mandibular / The influence of foot as a receptor on body posture and on facial, mandibular and cranial symmetries

Introducción: Un apoyo plantar incorrecto puede considerarse un factor etiológico de asimetrías faciales y cráneo-mandibulares pues modifica, de forma instantánea, la relación entre el maxilar y la mandíbula. Por tanto, resulta vital identificar la etiología de estas asimetrías para establecer diagnósticos y tratamientos certeros. Objetivo: Determinar la influencia del apoyo plantar en la postura corporal, la simetría facial y cráneo-mandibular en adolescentes. Métodos: Se realizó un estudio descriptivo y transversal de enero a septiembre de 2019 con 180 adolescentes que asistieron al servicio de Ortodoncia de la Clínica Docente de Especialidades «Victoria de Santa Clara», los cuales cumplían con criterios de selección de la investigación. Se analizaron variables faciales, posturales y cefalométricas. Se determinó: la simetría facial mediante el análisis de líneas faciales, el apoyo plantar al calcular el índice cavitario, la postura corporal, según la prueba de Di Rocca, y la simetría mandibular con el método modificado de Kurt y Uysal. Se siguieron las normas éticas y fueron aplicadas la prueba de Fisher, la de McNemar, y la técnica de conglomerado. Resultados: Predominaron los adolescentes con apoyo plantar asimétrico y los pies varo. Del total de casos con asimetría facial, 72,53 % presentó apoyo plantar asimétrico, y 39,44 % planos biilíaco y biclavicular desequilibrados y divergentes. La asimetría mandibular se observó en el 56,11%, la mayoría con apoyo plantar asimétrico. Conclusiones: Se pudo constatar la influencia del apoyo plantar en la postura corporal, la simetría facial y cráneo-mandibular, pues se observó un alto grado de relación entre las variables estudiadas.

Introduction: an incorrect plantar support can be considered an etiological factor of facial, mandibular and cranial asymmetries since it instantly modifies the relationship between the maxilla and mandible. Therefore, it is vital to identify the etiology of these asymmetries to establish accurate diagnoses and treatments. Objective: to determine the influence of plantar support on body posture and on facial, mandibular and cranial symmetries in adolescents. Methods: a descriptive and cross-sectional study was carried out from January to September 2019 with 180 adolescents who were seen in the Orthodontics service at "Victoria de Santa Clara" Specialty Teaching Dental Clinic, who met the research selection criteria. Facial, postural and cephalometric variables were analyzed. Facial symmetry was determined through the analysis of facial lines, plantar support by means of cavity index, body posture according to the Di Rocca test, and mandibular symmetry with the modified method of Kurt and Uysal. Ethical standards were followed and Fisher's and McNemar's tests as well as clustering technique were applied. Results: adolescents with asymmetric plantar support and varus feet predominated. The 72.53% had asymmetric plantar support from the total cases with facial asymmetry, and 39.44% had unbalanced and divergent biiliac and biclavicular planes. Mandibular asymmetry was observed in 56.11%, mostly with asymmetric plantar support. Conclusions: the influence of plantar support on body posture and on facial, mandibular and cranial symmetries was posible to verify since a high degree of relationship was observed among the variables studied.

Factores asociados a la calidad de vida relacionada con la salud bucal en preescolares de una comunidad andina / Factors associated with oral health related-quality of life in preschoolers from an Andean community

Objective : To analyze the oral health status and its relationship with the quality of life of Andean children of the community of Paucarbamba in Huancavelica, Peru. Material and Methods : The observational, cross-sectional, and correlational study was conducted on a sample of 120 children aged 3-5 years. Early childhood caries was considered using the dmft index. In addition, presence and type of malocclusion were assessed. The oral health-related quality of life was measured by The Early Childhood Oral Health Impact Scale (ECOHIS) questionnaire. Univariate and bivariate analysis were performed. Linear regression and Spearman correlation were conducted to identify the factors that most explained the ECOHIS score. Results : Multiple linear regression by least squares method did not consider gender, age, malocclusion, and simplified oral hygiene index as significant. This analysis only included dmft index as significant (p<0.05) to explicate the ECOHIS score. The estimated regression model was ECOHIS score = 11.67 + 0.79*dmft, in which the score increased by 0,79 for each unit obtained of the dmft index, and the dmft in a R2 = 30% (p<0.001) explained the variability of the ECOHIS score achieved. Conclusions : There is a negative impact of dental caries on the quality of life of preschool children and their families in an Andean community in Paucarbamba, Peru.

Objetivo : Analizar el estado de salud bucal y su relación con la calidad de vida de los preescolares de una comunidad andina y vulnerable del Perú. Material y Métodos : El estudio observacional, correlacional y transversal se realizó en una muestra de 120 niños de 3 a 5 años. La caries de la primera infancia se determinó mediante el índice ceod. También se consideró la presencia y el tipo de maloclusión. El cuestionario Early Childhood Oral Health Impact Scale (ECOHIS) midió la calidad de vida relacionada con la salud bucal. Los factores y variables orales se analizaron de manera univariada y bivariada. Se realizó un análisis de correlación de Spearman y regresión lineal para identificar los factores y en qué medida explicaban la puntuación del cuestionario. Resultados : El análisis de regresión lineal múltiple por el método de mínimos cuadrados solo incluyó como significativa (p <0,05) la contribución de ceod para explicar la puntuación del cuestionario, dejando de lado variables como el sexo, la edad, la maloclusión y el índice de higiene bucal simplificado. El modelo de regresión estimado fue Puntuación del Cuestionario = 11,67 + 0,79*ceod, donde la puntuación del cuestionario aumentó en 0,79 por cada unidad ganada de ceod, y la variabilidad de las puntuaciones obtenidas se explica por el ceod en un R2 = 30% (p<0,001). Conclusiones : Existe un impacto de la caries dental en la calidad de vida de los preescolares de uma comunidade andina del Perú y sus familias.

Análisis de la calidad de vida relacionada con salud oral en adultos con maloclusión / Analysis of the Oral Health-Related Quality of Life in Adults with Malocclusion / Análise da qualidade de vida relacionada à saúde bucal em adultos com má oclusão

aquellos pacientes que requirieron tratamiento de ortodoncia informaron impactos negativos en su calidad de vida relacionada con salud oral, en comparación con aquellos pacientes conclusión normal. El objetivo fue analizar la calidad de vida relacionada con la salud oral en pacientes con diferentes niveles de severidad de maloclusión que acudieron a consultorios odontológicos públicos de Paraguay durante el 2017. Materiales y métodos: estudio transversal. Se midieron variables sociodemográficas (como sexo, edad, residencia y nivel de estudios) y variables clínicas (como diastema, máxima irregularidad anterior maxilar y mandibular, resalte incisal y mordida cruzada anterior). Se utilizó el cuestionario Perfil de Impacto de Salud Oral en su versión paraguaya (ohip-14Py) y el Índice de Estética Dental (IED). Resultados: formaron parte del estudio 269 pacientes, la mayoría mujeres (75.1 %). El puntaje IED fue de 31.6 ± 11.6. Se observó resalte incisal aumentado (>2 mm) en poco más de la mitad (52.4 %) y una baja frecuencia de mordida cruzada anterior (5.9 %) y mordida abierta (10.0 %). Al evaluar por dimensiones, la incapacidad psicológica (p = 0.028), social (p = 0.034) y la minusvalía (p = 0.552) aumentaron conforme el nivel de severidad de maloclusión, por lo que fueron estadísticamente significativas las dos primeras. Conclusión: conforme aumenta la gravedad de la maloclusión, disminuye significativamente la calidad de vida oral para las dimensiones incapacidad psicológica e incapacidad social.

Patients requiring orthodontic treatment reported negative impacts on oral health-related qual-ity of life compared to patients with normal occlusion. Objective: To analyze the oral health-related quality of life in patients with different levels of severity of malocclusion attending public dental offices in Paraguay in 2017. Methodology: This was a cross-sectional study. Both, the sociodemographic variables, like sex, age, res-idence, and educational level, and the clinical variables, like diastema, maximum anterior maxillary, and mandibular irregularity, incisal overhang, and anterior crossbite were measured. The Oral Health Impact Profile questionnaire was used in its Paraguayan version (ohip-14Py) and the Dental Aesthetic Index (ied) scale. Results: A total of 269 patients were a part of the study. Moreover, 75.1 % of them were women. The ied score was 31.4 ± 11.6. An increase in the incisal protrusion (>2 mm) was seen in 52.4 % of the patients. Whereas a low frequency of anterior crossbite and open bite were seen in 5.9 % and 10.0 % of the population, respec-tively. While conducting an evaluation based on the dimensions, the psychological disability (p = 0.028), social disability (p = 0.034), and handicap (p = 0.552) increased according to the level of severity of malocclusion, being statistically significant in the first two. Conclusion: As the severity of the level of malocclusion increases, the oral quality of life decreases for the psychological disability and social disability dimensions.

os pacientes que necessitaram de tratamento ortodôntico relataram impactos negativos na qualidade de vida relacionada à saúde bucal em comparação aos pacientes com oclusão normal. Objetivo:analisar a qualidade de vida relacionada à saúde bucal em pacientes com diferentes graus de severi-dade da má oclusão que compareceram a consultórios odontológicos públicos no Paraguai durante o ano de 2017. Metodologia: estudo transversal. Foram mensuradas variáveis sociodemográficas como sexo, idade, residência e escolaridade e variáveis clínicas como diastema, irregularidade anterior maxilar e mandibular máxima, sobressaliência incisal e mordida cruzada anterior. Foram utilizados o questioná-rio Perfil de Impacto em Saúde Bucal em sua versão paraguaia (ohip-14Py) e o Índice de Estética Dental (ied). Resultados: fizeram parte do estudo 269 pacientes, sendo a maioria mulheres (75,1 %). A pontuação do ied foi de 31,6 ± 11,6. Observou-se aumento da saliência incisal (>2 mm) em pouco mais da metade (52,4 %) dos pacientes, além de baixa frequência de mordida cruzada anterior (5,9 %) e mordida aberta (10,0 %). Ao avaliar por dimensões, a incapacidade psicológica (p = 0,028), incapacidade social (p = 0,034) e desvantagem (p = 0,552) aumentaram de acordo com o grau de severidade da má oclusão, sendo as duas primeiras estatisticamente significativas. Conclusão: à medida que a gravidade da má oclusão aumenta, a qualidade de vida oral diminui significativamente para as dimensões de incapacidade psicológica e incapacidade social.

First Thousand Days of Child Life and the Development of Risk Factors for Malocclusions

ABSTRACT Objective: To identify the association between individual and socioeconomic factors during the first thousand days of the child's life and the occurrence of risk behaviors for the development of malocclusions. Material and Methods: Cross-sectional study. A sample of 655 6-year-old schoolchildren and families was included. Interviews with mothers were performed at home. The dependent variables were risk behaviors to the development of malocclusions. Independent variables were socioeconomic conditions, aspects of gestation, birth and health of the child up to two years of age. Bivariate and multivariate analyzes were performed through Poisson regression. Results: Maternal education of less than eight years was independently associated with the interruption of exclusive breastfeeding until the fourth month (PR=1.58 CI 95%; 1.07; 2.37). Occupation of the mother with income [PR=1.26; 1.02; 1.56)], occupation of the father without income [PR=1.46 (1.01; 2.14)] were associated fwith interruption of breastfeeding until the sixth month. Pregnancy in adolescence [PR=0.83 (0.70; 0.98)] and nursery attendance [PR=1.15 (1.02; 1.28)] were associated with bottle use. Nursery attendance [PR=1.27 (1.01; 1.59)], hospitalization in the first 29 days of life [PR=1.34 (1.01; 1.80)], occurrence of reflux [PR=1.30 (1.01; 1.70)] were associated with pacifier using. Conclusion: Variables related to the period of the first thousand days of life are associated with higher risk behaviors for the occurrence of malocclusions.

Cárie na primeira infância, má oclusão, fatores psicossociais e qualidade de vida relacionada à saúde bucal de crianças e suas famílias / Early childhood caries, malocclusion, psychosocial factors and oral health-related quality of life in children and their families

Cárie na primeira infância (CPI) e má oclusão podem afetar a qualidade de vida relacionada à saúde bucal (QVRSB) de crianças e suas famílias. Fatores psicossociais relacionados às crianças, suas famílias e comunidade na qual estão inseridas devem ser estudados. Diante disso, os objetivos desta tese foram: 1) verificar a associação entre fatores psicossociais associados à CPI e à QVRSB em pré-escolares e suas famílias (Artigo 1); 2) avaliar o impacto da mordida aberta anterior (MAA) e da mordida profunda (MP) na QVRSB de préescolares, e verificar o papel da resiliência parental como um fator moderador nessa associação (Artigo 2). Foi realizado um estudo transversal representativo com pré-escolares de 4-6 anos de idade e seus pais/responsáveis em Ribeirão das Neves, MG, Brasil. Os pais/responsáveis responderam às versões brasileiras do Early Childhood Oral Health Impact Scale (ECOHIS) e Escala de Resiliência, e um questionário com dados socioeconômicos e de comportamento de saúde bucal da criança. Os pré-escolares foram examinados por duas dentistas treinadas e calibradas para o diagnóstico de CPI e consequências pulpares de lesões cariosas não tratadas (Kappa>0,95), utilizando-se a versão epidemiológica do International Caries Detection and Assessment System (ICDASepi) combinado com o índice pufa e, assim categorizados: sem cárie, estágio inicial (opacidade notável/pigmentação retida em fundo de fóssulas e fissuras), estágio moderado (cavitação em esmalte/sombreamento em dentina subjacente), estágio extenso sem consequências pulpares (cavitação com exposição dentinária) e estágio extenso com consequências pulpares (cavitação com exposição dentinária, com envolvimento pulpar e/ou presença de fístulas/abscessos). A presença de MAA e MP foi avaliada através do índice de Foster e Hamilton. Os dados foram analisados por meio da modelagem por equações estruturais, utilizando-se o software Mplus, versão 8.6 (Artigo 1) e por meio da análise de moderação, utilizando-se o PROCESS (PROCESS for SPSS, version 3.4) (Artigo 2). Os resultados do artigo 1 demonstraram que menor status socioeconômico (ß =-0,250; p<0,001) e maior frequência de consumo de açúcares livres (ß=0,122; p=0,033) foram associados diretamente com estágio extenso de cárie com consequência pulpar, enquanto menor resiliência dos pais impactou indiretamente estágios mais avançados da CPI, por meio da variável frequência de consumo de açúcares livres (ß =-0,089; p=0,048). Além disso, CPI foi associada com piores escores tanto da QVRSB da criança (b=0,587; p<0,001) quanto da família (ß =0,506; p<0,001). Os resultados do artigo 2 demonstraram que préescolares filhos de pais com baixa resiliência, e que possuíam MAA apresentaram impacto negativo na QVRSB (ß:3,95;p=0,025) em comparação àqueles que apresentaram oclusão normal. A resiliência parental não atuou como fator moderador na associação entre MP e QVRSB (p>0,05). Conclui-se que quanto maior a gravidade da CPI, maior o impacto negativo na QVRSB de pré-escolares e suas famílias. Os principais fatores associados à CPI mais grave foram menor nível socioeconômico, maior frequência de consumo de açúcar livre e menor resiliência parental (Artigo 1). MAA interferiu negativamente na QVRSB dos pré-escolares, sendo essa associação mais forte quando a resiliência parental era baixa. Portanto, a resiliência dos pais atuou como fator moderador na relação entre MAA e QVRSB (Artigo 2).

Early childhood caries (ECC) and malocclusion can affect the oral health-related quality of life (OHRQoL) of children and families. Psychosocial factors related to children, their families and the community in which they are inserted must be studied. Therefore, the objectives of this thesis were: 1) to verify the association between psychosocial factors with ECC and OHRQoL in preschoolers and their families (Manuscript #1); 2) to evaluate the impact of anterior open bite (AOB) and deep bite (DB) on the OHRQoL of preschool children and the role of parental resilience as a moderating factor in such association (Manuscript #2). A representative crosssectional study was carried out with 4-to-6-year-old preschoolers and their parents/caregivers from Ribeirão das Neves, MG, Brazil. Parents/caregivers selfadministered the Brazilian versions of the Early Childhood Oral Health Impact Scale (ECOHIS) and the Resilience Scale, as well as a questionnaire about socioeconomic and child's oral health behavior data. Preschoolers were examined by two trained and calibrated dentists for the diagnosis of ECC and pulpal consequences of untreated carious lesions (Kappa>0.95), using the epidemiological version of the International Caries Detection and Assessment System (ICDASepi) index combined with the pufa index: no caries, early stage (notable opacity/retained pigmentation in the background of pits and fissures), moderate stage (cavitation in enamel/shading in underlying dentin), extensive stage without pulpal consequences (cavitation with dentin exposure) and extensive stage with pulpal consequences (cavitation with dentin exposure, and pulp involvement and/or fistulas/abscesses). The presence of AOB and DB were evaluated using the Foster and Hamilton index. Data were analysed through Structural Equation Model (SEM), using the Mplus software, version 8.6 (Manuscript #1) and through moderation analysis, using PROCESS (PROCESS for SPSS, version 3.4) (Manuscript #2). The results of the Manuscript #1 demonstrated that lower socioeconomic status (b=-0.250; p<0.001) and higher frequency of consumption of free sugars (ß=0.122; p=0.033) were directly associated with an extensive stage of caries with pulpal consequences, while lower parental resilience indirectly impacted more advanced stages of ECC, through the variable frequency of consumption of free sugars (b=-0.089; p=0.048). In addition, ECC was associated with worse scores in both the child's (ß=0.587; p<0.001) and the family's (ß=0.506; p<0.001) OHRQoL. The results of the Manuscript #2 demonstrated that preschoolers whose parents presented low resilience, and preschoolers who presented OAB, had a negative impact on OHRQoL (ß:3.95; p=0.025) compared to those who had normal occlusion. Parental resilience did not act as a moderating factor in the association between DB and OHRQoL (p>0.005). It is concluded that the severity of ECC negatively impacted the OHRQoL of preschoolers and their families, and the main factors associated with the severity of ECC were lower socioeconomic status, higher frequency of free sugar consumption and lower parental resilience (Manuscript #1). OAB negatively interfered with the OHRQoL of preschoolers, with this association being stronger when parental resilience was low. Therefore, parental resilience acted as a moderating factor in the relationship between OAB and OHRQoL (Manuscript # 2).

Relationship between Malocclusion, Bullying, and Quality of Life in Students from Low Social Development Area: A Cross-Sectional Study

ABSTRACT Objective: To analyze the relationship between malocclusion and bullying and its impact on the well-being and quality of life of students from low social development areas. Material and Methods: This cross-sectional study included 243 schoolchildren between 10 and 17 years. Malocclusion was analyzed using Dental Aesthetic Index. Bullying and self-perception of the impact of one's oral condition on quality of life and interpersonal relationships were assessed by questions from National Survey of Schoolchildren's Health and Child Perceptions Questionnaire 11-14 (CPQ11-14). Data were analyzed using the Spearman correlation coefficient and Mann-Whitney tests, considering groups: 10-11, 12-14 and 15-17 years. Results: No correlation was observed between malocclusion and bullying. However, in the 12-14 group, poor correlations were found between malocclusion and the CPQ11-14 (0.226) and between malocclusion and being shy/embarrassed due to oral aspects (0.298). Positive correlations were observed between bullying and the impact on the quality of life in the 10-11 (0.420) and 12-14 (0.425) groups. In the older group, a positive correlation (0.724) was observed between the concern about what others think of their oral health and the impact on their quality of life. Conclusion: There was no evidence of a relationship between malocclusion and bullying. However, the oral conditions negatively affected the interpersonal relationships and the student's quality of life.

Prevalence of Dental Caries in 5-Year-Old Children in a Northeast Brazilian Capital

ABSTRACT Objective: To evaluate the prevalence of dental caries in children aged five years in a Northeast Brazilian Capital (Fortaleza, CE) and its association with sociodemographic conditions, presence of malocclusion, and gingival bleeding. Material and Methods: This is a quantitative, descriptive, observational, and cross-sectional study carried out in a representative sample of 3,582 children aged five years in the city of Fortaleza-CE. Data was collected in public and private schools distributed in the city's Regional Health Coordination (CORES). Each of the six CORES worked with five field teams, participating in inter-examiner training and calibration with a final KAPPA coefficient of 0.87. Data were collected using a clinical form adapted from the SB Brasil 2010 questionnaire on sociodemographic conditions. The indices of dmft, need for treatment, malocclusion, and gingival bleeding were used for oral health conditions. The data were submitted to Pearson's Chi-square or Fisher's Exact tests, and the variables that show values of p<0.05 were submitted to a multinomial logistic regression model (forward stepwise model). Results: 57.1% of children were caries-free, and the mean dmft-d was 1.65 (1.65±2.65). CORES I and VI were the ones that presented the most significant association with caries attacks in all primary molars. The highest percentage of caries in the 2nd upper molar (60.6%), 1st lower molar (59%), and 2nd lower molar (58.8%) were found in children with normal occlusion. There was a significant association between gingival bleeding and caries in all molars and the need for treatment. Conclusion: These results allow us to observe that the prevalence of dental caries in 5-year-old children in Fortaleza is low, although with a tendency to increase.

Multidisciplinary action in a patient with cleft lip and palate: esthetic-functional dentofacial treatment for more than two decades / Atuação multidisciplinar em paciente com fissura lábio palatina: tratamento estético-funcional dento-facial de mais de duas décadas

Cleft lip and palate is a very common congenital defect in which embryonic facial processes do not achieve the ideal facial formation during their development which can cause malformation. Multiple dentistry specializations, especially oral and maxillofacial, orthodontics, oral rehabilitation and dental aesthetics are required in order to correct lip and oral cavity malformations by this congenital defect with the objective of functional and aesthetics improvement. The clinical case reported show the multidisciplinary approach in a patient with cleft lip and palate implementing an aesthetic and functional dentofacial rehabilitation. The case involves a 27-year-old female patient LCLG, Caucasian, with the presence of unilateral congenital cleft lip and palate on the left side, who started rehabilitative and reparative treatment at 3 months of age. She then started pediatric orthodontic treatment for angle class 3 crossbite correction at 7 years of age. After complete replacement of deciduous to permanent dentition at the age of 11, the patient started orthodontic treatment with a fixed appliance for several years and restorative treatment with composite resin reanatomize the anterior teeth due to agenesis of elements 22 and 25. After a few years when the resin restorations were no longer biologically favorable, an aesthetic rehabilitation treatment with ceramic laminates was planned through smile digital planning soon after completing the orthodontic treatment. This case report demonstrates that high aesthetic, functional and psychological expectations of a patient with congenital defect compromise throughout her life were met through a multidisciplinary dental treatment based on correct diagnosis and digital planning (AU)

A fissura labiopalatal é um defeito congênito muito comum, no qual os processos faciais embrionários não atingem a formação facial ideal durante o seu desenvolvimento, podendo causar malformações. Múltiplas especializações da odontologia, principalmente buco-maxilo-facial, ortodontia, reabilitação oral e estética dental são necessárias para corrigir as malformações labiais e da cavidade oral por esse defeito congênito com o objetivo de melhoria funcional e estética. O caso clínico relatado mostra a abordagem multidisciplinar em um paciente com fissura labiopalatal implementando uma reabilitação dentofacial estética e funcional. O caso envolve uma paciente do sexo feminino, 27 anos, LCLG, branca, com presença de fissura labiopalatal congênita unilateral à esquerda, que iniciou tratamento reabilitador e reparador aos 3 meses de idade. Após a substituição completa da dentição decídua pela permanente aos 11 anos de idade, a paciente iniciou tratamento ortodôntico com aparelho fixo por vários anos, e tratamento restaurador com resina composta para reanatomizar os dentes anteriores devido à agenesia dos elementos 22 e 25. Após alguns anos em que as restaurações em resina não eram mais favoráveis biologicamente, foi planejado um tratamento reabilitador estético com laminados cerâmicos através do planejamento digital do sorriso logo após a finalização do tratamento ortodôntico. Este relato de caso demonstra que as altas expectativas estéticas, funcionais e psicológicas de uma paciente com comprometimento de defeito congênito ao longo de sua vida foram atendidas por meio de um tratamento odontológico multidisciplinar baseado em diagnóstico correto e planejamento digital (AU)

The Effects of Orthodontic Tooth Movement on Clinical Attachment Level Changes in Treated Periodontitis Adult Patients with Malocclusion: A Systematic Review and Meta-analysis

ABSTRACT Objective: To investigate the effects of orthodontic tooth movement on clinical attachment level (CAL) changes in treated periodontitis in adult patients with malocclusion. Material and Methods: Present study is based on PRISMA guidelines; all articles published in international databases such as PubMed, Scopus, Science Direct, and Embase between 2012 to May 2022 are included. 95% confidence interval (CI) for mean difference with fixed effect modal and inverse-variance were calculated. Data analysis was performed using STATA.V16 software. Results: In the initial review, duplicate studies were eliminated, abstracts of 175 studies were reviewed, two authors reviewed the full text of 21 studies, and finally, eleven studies were selected. The mean of CAL gain was 2.29 mm (MD, 95% CI -2.47 mm, -2.12 mm; p=0.00) (I2=91.81%; p=0.00; high heterogeneity). The mean difference of PPD changes was -1.93 mm (MD, 95% CI -2.07 mm, -1.80 mm; p=0.00) (I2=98.52%; p=0.00; high heterogeneity). Conclusion: Due to the limitations of the study and based on the meta-analysis, it is observed that orthodontic treatment is performed with higher success after reconstructive surgery with periodontal improvement.

Variations in Function and Vocal Acoustic Characteristics After Orthognathic Surgery: Preliminary Results

ABSTRACT Objective: To determine the effects of orthognathic surgery on oral function and vocal quality in order to assess the need for speech therapy after surgery. Material and Methods: Thirty-seven patients scheduled for mono-jaw surgery, specifically maxillary (G1:15 patients), mandibular advancement (G2:10 patients) or mandibular set-back (G3:12 patients), were recruited for this prospective cohort study. Evaluation of oral functions, video recordings of speech articulation and audio recordings of voice were obtained before surgery (T0), and at 1 (T1) and 6 months (T2) after surgery. Spectrographic analysis and self-evaluation questionnaire regarding the vocal performance (VAPP) were performed. Both qualitative and quantitative statistical analysis was performed, mainly using generalized linear models for dichotomous data (p<0.05). Results: The formant frequencies (F1 and F2) of the main vowels vary after orthognathic surgery according to the type of surgery. Before surgery, 84% of patients analyzed showed difficulties in breathing and positioning the tongue both at rest and swallowing. Thanks to surgical correction of the malocclusion, the major part of these issues were resolved within 6 months. In 25% of cases, a change in the voice and/or articulation had occurred. Conclusion: Vocality improves after orthognathic surgery and it changes in relation to the type of surgery. However, vocality did not normalize completely. Speech assessment should be considered after surgery in order to offer adequate speech therapy if necessary.

Soft tissue and incisor position changes in class I bimaxillary subjects after retraction using friction and frictionless mechanics

Aim: Bimaxillary protrusion is a common condition observed irrespective of race and ethnicity and is a chief concern for patients who seek orthodontic treatment. The aim of this study was to compare and evaluate changes in soft tissue structures and incisor positions in class I bimaxillary protrusion subjects undergoing orthodontic therapy when friction and frictionless mechanics were used. Methods: Two groups with a total of 40 patients aged 18­30 years diagnosed with class I bimaxillary protrusion treated by extracting first premolars were considered for this study. Patients treated with friction mechanics were included in Group 1 and those treated with frictionless mechanics in Group 2. The digital lateral cephalograms were calibrated and analyzed using Nemoceph software. Selected landmarks were marked on pre- and post-treatment cephalograms and assessed for intra- and inter-group soft tissue and incisor position changes. Student's t-test was used to analyze the collected data using SPSS 20 software. Result: Intragroup comparison revealed significant changes in both groups. Inter-group comparison of the selected parameters between groups 1 and 2 showed differences but without any statistical significance, except for the inter-incisal angle. Conclusion: Pre- and post-treatment comparison analysis revealed significant soft tissue changes in both groups. However, the comparison between friction and frictionless mechanics showed no statistically significant changes

Guía diagnóstica de hábitos lesivos orales para pediatras / Diagnostic guide of oral injurious habits for pediatricians / Guia de diagnóstico para pediatras sobre hábitos lesivos orais

Introducción: la etiología de las maloclusiones se encuentra relacionada a factores genéticos y ambientales, siendo relevantes los hábitos lesivos orales en ella; por lo que en un concepto de Salud Integral de los niños, debemos contar no solo con el rol activo preventivo del odontólogo sino también de pediatra. Método: crear guía clínico práctica para médicos pediatras, que permitan identificar sistemáticamente hábitos no fisiológicos vinculados a maloclusiones. Resultado: el pediatra con los conocimientos básicos podrá elaborar revisiones preventivas durante los controles periódicos de rutina. Discusión: considerar la atención en equipo multidisciplinario, con énfasis en la prevención, punto donde todo el equipo de salud debe contribuir. Conclusiones: consideramos que los efectos sobre el crecimiento y desarrollo provocados por hábitos lesivos orales/funciones no fisiológicas tendrán mayor o menor repercusión según la edad en que se inicia el hábito. Si actuamos de manera temprana tendremos más posibilidades de modificar el patrón de crecimiento de los maxilares y el desarrollo de los arcos dentarios. Se impone entonces un interrogatorio y examen funcional precoz y sistemático para la detección de desviaciones y trastornos funcionales en niños, así como enfocar los tratamientos desde equipos multidisciplinarios (odontólogo, pediatra, fonoaudiólogo, otorrinolaringólogo, psicólogo) y alcanzar resultados de excelencia.

Introduction: the etiology of malocclusions is related to genetic and environmental factors, and oral injurious habits are relevant in it; therefore, in a concept of integral health of children, we should count not only on the active preventive role of the dentist but also of the pediatrician. Method: to create a practical clinical guide for pediatricians that will allow the systematic identification of non-physiological habits linked to malocclusions. Result: the pediatrician with basic knowledge will be able to elaborate preventive check-ups during routine periodic check-ups. Discussion: consider multidisciplinary team care, with emphasis on prevention, a point to which the entire health team should contribute. Conclusions: we consider that the effects on growth and development caused by harmful oral habits/non-physiological functions will have greater or lesser repercussions depending on the age at which the habit begins. If we act early we will have more possibilities of modifying the growth pattern of the jaws and the development of the dental arches. Therefore, an early and systematic interrogation and functional examination is necessary to detect deviations and functional disorders in children, as well as to focus the treatments from multidisciplinary teams (dentist, pediatrician, speech therapist, otorhinolaryngologist, psychologist) and achieve excellent results.

Introdução: a etiologia das más oclusões está relacionada a fatores genéticos e ambientais, e hábitos orais nocivos são relevantes para ela; portanto, em um conceito de saúde integral das crianças, devemos confiar não apenas no papel ativo preventivo do dentista, mas também no do pediatra. Método: criar um guia clínico prático para que os pediatras identifiquem sistematicamente os hábitos não fisiológicos ligados às más oclusões. Resultado: o pediatra com conhecimentos básicos será capaz de desenvolver check-ups preventivos durante check-ups periódicos de rotina. Discussão: considerar os cuidados de equipe multidisciplinar, com ênfase na prevenção, um ponto para o qual toda a equipe de saúde deve contribuir. Conclusões: consideramos que os efeitos no crescimento e desenvolvimento causados por hábitos orais nocivos/ funções não-fisiológicas terão maiores ou menores repercussões dependendo da idade em que o hábito começa. Se agirmos cedo, teremos mais chances de modificar o padrão de crescimento das mandíbulas e o desenvolvimento dos arcos dentários. O questionamento precoce e sistemático e o exame funcional são, portanto, necessários para a detecção de desvios e distúrbios funcionais em crianças, assim como a aproximação de tratamento de equipes multidisciplinares (dentista, pediatra, fonoaudiólogo, otorrinolaringologista, psicólogo) e a obtenção de excelentes resultados.

Ortodoncia interceptiva con alineadores en un paciente con mordida cruzada en período de dentición mixta / Interceptive orthodontics with clear aligners in a patient with crossbite in a mixed dentition period

La mordida cruzada es una maloclusión que debe recibir tratamiento precoz ya que es potencial causa de desviaciones mandibulares, asimetría facial y trastornos de disfunción temporomandibular. En general se acompaña de la necesidad de estimulación del desarrollo transversal del maxilar superior. En este artículo presentamos un caso clínico tratado con alineadores en el que se planteó como objetivo de primera fase la expansión transversal, con el fin de corregir su mordida cruzada lateral y mejorar la posición de los caninos permanentes en etapa pre-eruptiva en una paciente de 9 años. Luego de dos etapas cortas de tratamiento con alineadores, los resultados fueron satisfactorios. El caso se acompaña de fotos, radiografías y renders iniciales y finales.

Crossbite is a type of malocclusion that must receive early treatment due to its potentiality of causing mandibular deviations, facial asymmetry, and temporomandibular disorders. Generally, it is accompanied by the need to stimulate the transverse development of upper jaw. In the following article, a clinical case will be presented in which a nine-year-old patient was treated with clear aligners in the first phase with the aim of performing the transversal expansion, to correct the lateral crossbite and improving the position of the permanent impacted canines in pre-eruptive stages. After two short treatment stages with clear aligners, the results were positive. The clinical case is complemented with its pertinent clinical photos, radiographies, and renders, both initial and final.