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1.
Rev. odontopediatr. latinoam ; 11(1): 219150, 2021. ilus, tab
Artículo en Español | LILACS, COLNAL | ID: biblio-1147636

RESUMEN

Objetivos: La presente investigación tuvo como objetivo establecer la correlación entre la presencia de maloclusiones a nivel vertical con el índice del paladar y con la altura palatina. Materiales y Métodos: Estudio de tipo transversal. La población de estudio fue conformada por 134 modelos de yeso con dentición mixta, 81 mujeres y 53 hombres, seleccionados por conveniencia y obtenidos desde el 2014 hasta el 2018 del área de clínica de odontopediatría y ortodoncia en la Escuela Nacional de Estudios Superiores Unidad León. La muestra de estudio fue dividida en 3 categorías según la oclusión; mordida abierta (37), mordida profunda (32) y normoclusión (65). Se realizaron mediciones del ancho intermolar y altura del paladar con el uso de un calibrador digital, posteriormente se obtuvo el índice del paladar y se correlacionó con los parámetros expuestos por Korkhaus mediante la prueba estadística de Spearman. Resultados: La prueba estadística de Spearman refleja que no hay correlación entre la magnitud de los valores del índice del paladar propuestos por Korkhaus con la presencia de maloclusiones a nivel vertical. De igual manera las pruebas estadísticas indican que no existe correlación notable entre la altura del paladar y la oclusión en relación vertical. Conclusiones: El resultado obtenido al usar el índice del paladar no fue capaz de corresponder a los parámetros propuestos por Korkhaus como normales, posiblemente al ser usado durante la etapa de la dentición mixta pues durante este periodo suceden cambios constantes relacionados al crecimiento.


Objetivos: Os objetivos a presente investigação buscou valor uma correlação entre a presença de más oclusões em nível vertical com o índice do palato e com a altura palatina. Materiais e Métodos: Estudo do tipo transversal. A população do estudo foi composta por 134 modelos de gesso com dentição mista, 81 mulheres e 53 homens, selecionados por conveniência e obtidos de 2014 a 2018 na área de Odontopediatria e Ortodontia na Escola Nacional de Ensino Superior Unidade de León. A amostra do estudo foi dividida em 3 categorias de acordo com a oclusão; mordida aberta (37), mordida profunda (32) e normoclusão (65). A medida da largura intermolar e da altura do palato foi feita com o uso de um paquímetro digital, o índice de palato foi posteriormente obtido e relacionado aos parâmetros expostos por Korkhaus por meio do teste estatístico de Spearman. Resultados: O teste estatístico de Spearman mostra que não há correlação entre a magnitude dos valores do índice de palato proposta por Korkhaus e a presença de más oclusões verticais. Da mesma forma, os testes estatísticos indicam que não há correlação notável entre a altura do palato e a oclusão na relação vertical. Conclusões: O resultado obtido com o uso do índice de palato não foi capaz de corresponder aos parâmetros propostos por Korkhaus como normais, possivelmente quando usado durante o estágio de dentição mista, porque durante este período há mudanças constantes relacionadas ao crescimento


Purpose: The aim of the present study is to assess the relation between vertical malocclusions with palatal index and palatal height. Materials and Methods: Transversal study. The sample consisted in 134 stone models within mixed dentition, 81 females and 53 males, they were convenience selected and obtained from the pediatric and orthodontic dentistry medical center at the National School for Superior Studies Unit León since 2014 to 2018. The stone models were divided into three categories according to their kind of occlusion: open bite (37), deep bite (32) and normal bite (65). Palatal width and height were measure by using a digital caliper. Subsequently the palatal index was obtained and it was related with the parameters exposed by Korkhaus using the Spearman statistical test. Results: The Spearman statistical test indicated there is no a clearly relationship between palatal index values exposed by Korkhaus with the presence of vertical malocclusions and in the same way there is no a relationship between palatal height and vertical malocclusions.Conclusions: The result obtained by using the palatal index was no able to indicate an agreement with Korkhaus parameters. Probably this disagreement was due to the constant changes that occur during the period of the mixed dentition.


Asunto(s)
Humanos , Masculino , Femenino , Mordida Abierta , Dentición Mixta , Mediciones, Métodos y Teorías , Dentición , Maloclusión
2.
Orthod Fr ; 91(4): 373-392, 2020 Dec 01.
Artículo en Francés | MEDLINE | ID: mdl-33372663

RESUMEN

The first publication on the use of magnets in dentistry for stabilizing prosthetics on implants dates back to 1953. Clinical development in orthodontics, without having experienced a real boom, has increased over the past ten years, in parallel with the improvement of the device. The objective of this review of the literature is to synthesize clinical applications and reported iatrogenic effects. A systematic review of the international literature from the Pubmed and Cochrane databases from 1999 to July 2018 was conducted which resulted in 36 articles. The factors studied are the indications and contraindications, the means or procedure, as well as the iatrogenic effects. Original cases are presented. The correction of infraclusions is the main indication, followed by the correction of anteroposterior malocclusions and then the correction of over-erupted teeth. Traction of an impacted teeth and diastema closure have not been found in recent publications probably because of the low benefit-risk ratio. The future no longer seems to be buried magnets or left in the long term in the mouth considering there seems to be concerns in terms of toxicity (or even the risk in terms of vital prognosis). The magnets could offer interesting perspectives to manage the current limits of the aligners, the movements of anterior egression, rotation and previous torque being still problematic...


Asunto(s)
Maloclusión , Ortodoncia , Diente Impactado , Humanos , Imanes , Ortodoncia Correctiva
3.
J Clin Pediatr Dent ; 44(6): 459-463, 2020 Dec 01.
Artículo en Inglés | MEDLINE | ID: mdl-33378471

RESUMEN

OBJECTIVE: The aim of this study was to evaluate changes in the mandibular dental arch and incisor alignment induced by combined bonded Rapid Maxillary Expansion (RME) and Face Mask (FM) therapy in the mixed dentition stage in which leeway space was used throughout the treatment. STUDY DESIGN: This retrospective study evaluates pretreatment (T0) and posttreatment (T1) cephalometric radiographs and orthodontic models of 25 patients (mean age: 10.75±2.64), in mixed dentition, having skeletal Class 3 anomaly (ANB<0) with maxillary retrognatism (SNA=77.2±0.68) and bilateral posterior crossbite treated with bonded Hyrax RME-FM. Mean treatment duration was 10.4 months. Dental model measurements were performed using the 3Shape OrthoAnalyzerTM 2013-1 program. Changes in the mandibular incisor and first molar positions were determined on cephalometric radiographs. Statistical evaluation was done with a paired t-test. RESULTS: A significant increase of 1.2 mm was found in intermolar width (p<0.001) in the mandibular dental arch. There was a significant decrease (1.4 mm) (p<0.001) in arch depth and an increase in arch length discrepancy (1.7mm)(p<0.01). There was a significant increase (0.8mm) (p<0.05) in the incisors' irregularity score (LII). IMPA showed a significant decrease (p<0.05). CONCLUSION: Clinicians should be aware that mandibular crowding tends to increase during this type of combined therapy.


Asunto(s)
Maloclusión , Máscaras , Adolescente , Cefalometría , Niño , Arco Dental/diagnóstico por imagen , Dentición Mixta , Humanos , Maloclusión/terapia , Maxilar , Técnica de Expansión Palatina , Estudios Retrospectivos
4.
Medicine (Baltimore) ; 99(50): e23165, 2020 Dec 11.
Artículo en Inglés | MEDLINE | ID: mdl-33327234

RESUMEN

BACKGROUND: Although several researchers have analyzed the dental identity of patients experience with corrective methods using fixed and removable appliances, the consequences stay debatable. This meta-analysis intended to verify whether the periodontal status of removable appliances is similar to that of the conventional fixed appliances. METHODS: Relevant literature was retrieved from the database of Cochrane library, PubMed, EMBASE, and CNKI until December 2019, without time or language restrictions. Comparative clinical studies assessing periodontal conditions between removable appliances and fixed appliances were included for analysis. The data was analyzed using the Stata 12.0 software. RESULTS: A total of 13 articles involving 598 subjects were selected for this meta-analysis. We found that the plaque index (PLI) identity of the removable appliances group was significantly lower compared to the fixed appliances group at 3 months (OR = -0.57, 95% CI: -0.98 to -0.16, P = .006) and 6 months (OR = -1.10, 95% CI: -1.60 to -0.61, P = .000). The gingival index (GI) of the removable appliances group was lower at 6 months (OR = -1.14, 95% CI: -1.95 to -0.34, P = .005), but the difference was not statistically significant at 3 months (OR = -0.20, 95% CI: -0.50 to 0.10, P = .185) when compared with that of the fixed appliances group. The sulcus probing depth (SPD) of the removable appliances group was lower compared to the fixed appliances group at 3 months (OR = -0.26, 95% CI: -0.52 to -0.01, P = .047) and 6 months (OR = -0.42, 95% CI: -0.83 to -0.01, P = .045). The shape of the funnel plot was symmetrical, indicating no obvious publication bias in the Begg test (P = .174); the Egger test also indicated no obvious publication bias (P = .1). CONCLUSION: Our meta-analysis demonstrated that malocclusion patients treated with the removable appliances demonstrated a better periodontal status as compared with those treated with fixed orthodontic appliances. However, the analyses of more numbers of clinical trials are warranted to confirm this conclusion.


Asunto(s)
Maloclusión/terapia , Aparatos Ortodóncicos Fijos/efectos adversos , Aparatos Ortodóncicos Removibles/efectos adversos , Enfermedades Periodontales/etiología , Adolescente , Adulto , Niño , Femenino , Humanos , Masculino , Maloclusión/clasificación , Maloclusión/diagnóstico , Persona de Mediana Edad , Diseño de Aparato Ortodóncico/tendencias , Aparatos Ortodóncicos/provisión & distribución , Evaluación de Resultado en la Atención de Salud , Enfermedades Periodontales/epidemiología , Índice Periodontal , Ensayos Clínicos Controlados Aleatorios como Asunto
5.
J Clin Pediatr Dent ; 44(4): 228-233, 2020 Aug 01.
Artículo en Inglés | MEDLINE | ID: mdl-33167014

RESUMEN

AIM: To assess the association between probable sleep bruxism (PSB) and other occlusal characteristics in children and teenagers with Cerebral Palsy (CP). STUDY DESIGN: A cross-sectional study was carried out with 148 participants (74 with CP and 74 without special needs) aged between 2 and 14 years old. Participants underwent an oral clinical examination to evaluate the occlusal characteristics. Parents/caregivers filled out a questionnaire with information related to the typical sounds of PSB, sociodemographic factors and the presence of harmful oral habits in the study participants. Data analysis was carried out, using Chi-square or Fisher's exact test and Odds Ratio (p<0.05). RESULTS: PSB and malocclusion (68.9% and 95.9%, respectively) were more prevalent in participants with CP than in participants without CP. The association between PSB and the presence of a wear facet was statistically significant (p < 0.001) in participants with CP. In this group, 64.8% of participants with PSB presented tooth wear. CONCLUSION: Presence of dental wear facets was significantly associated with PSB in individuals with cerebral palsy.


Asunto(s)
Parálisis Cerebral , Maloclusión , Bruxismo del Sueño , Adolescente , Parálisis Cerebral/complicaciones , Parálisis Cerebral/epidemiología , Niño , Preescolar , Estudios Transversales , Humanos , Factores de Riesgo , Bruxismo del Sueño/complicaciones , Bruxismo del Sueño/epidemiología
6.
Dental Press J Orthod ; 25(5): 66-84, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33206831

RESUMEN

INTRODUCTION: Moderate and severe bimaxillary protrusion impair the passive lip sealing and the facial and smile esthetics. The extraction of premolars can be avoided by the use of skeletal anchorage to retract both dental arches. This approach brings many advantages such as: prevents premolars extraction; simplifies orthodontic mechanics; there is no volume reduction of a premolar when smiling; control of overbite and gingival exposure. The utilization of this therapeutic approach, when associated with self-ligating brackets, can bring the possibility of spacing the appointments without damage to the treatment efficiency, and allows selection of the most appropriate torque prescriptions for each case. The intra-alveolar miniscrews are indicated for mild cases of bimaxillary protrusion, while extra-alveolar miniscrews may also be indicated for more severe cases. OBJECTIVE: To report the treatment of three cases of mild, moderate and severe bimaxillary protrusion, in which intra- and extra-alveolar miniscrews were used, according to the retraction required. CONCLUSION: The retraction of both upper and lower dental arches using orthodontic intra- and extra-alveolar miniscrews, associated with self-ligating brackets, is an excellent tool to correct mild to severe bimaxillary protrusion, thus reducing the need of premolar extraction and simplifying the orthodontic management.


Asunto(s)
Maloclusión de Angle Clase II , Maloclusión , Métodos de Anclaje en Ortodoncia , Sobremordida , Diente Premolar/cirugía , Estética Dental , Humanos , Técnicas de Movimiento Dental
7.
Dental Press J Orthod ; 25(5): 57-65, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33206830

RESUMEN

INTRODUCTION: Supervising the development of occlusion, managing problems during the transition from mixed to permanent dentition, as well as controlling environmental factors that contribute to establishing malocclusion, are important actions to achieve a Class I occlusion with facial balance. Among these problems, the malocclusions associated with dysfunctions such as mouth breathing or obstructive sleep apnea syndrome (OSAS), atypical swallowing and abnormal tongue position, open bites, crossbites and maxillomandibular discrepancies, and especially the Class III malocclusion can be listed. OBJECTIVE: The purpose of this article is to present and discuss the main aspects relevant to the benefits of performing the treatment of Class III malocclusion in patients with growth.


Asunto(s)
Maloclusión de Angle Clase III , Maloclusión , Dentición Mixta , Dentición Permanente , Humanos , Maloclusión/terapia , Maloclusión de Angle Clase III/terapia , Respiración por la Boca
8.
Orthod Fr ; 91(1-2): 57-67, 2020 06 01.
Artículo en Francés | MEDLINE | ID: mdl-33146134

RESUMEN

Since 1907, the international community has used Angle's classification to assess the mesio-distal relationships of the dental arches. It is the basis of the diagnosis of malocclusion in the sagittal dimension and indicates or not an orthodontic correction treatment. This work was aimed to inventory the classification methods of malocclusions used today. Indices of treatment need were also presented because they are based on one or more occlusal anomalies to indicate treatment. The classifications were criticized and the contribution of a functional analysis based on the use of the trilogy setting, centering and guiding was detailed. The type of anomalies (skeletal and dental) must be completed by the analysis of the occlusal anomaly of setting (centering or guiding) and of the category of occlusion (functional occlusion, functional malocclusion or pathogenic malocclusion), ie its possible pathogenic impact on orofacial structures. A consensus on the classification of occlusal anomalies is necessary in order to better identify the anomalies and their global repercussions, and to better define the needs for orthodontic treatment.


Asunto(s)
Maloclusión , Oclusión Dental , Humanos , Maloclusión/diagnóstico , Maloclusión/terapia
9.
Orthod Fr ; 91(3): 197-207, 2020 10 01.
Artículo en Francés | MEDLINE | ID: mdl-33146615

RESUMEN

The objective of this comparative retrospective cohort performed on 202 patients was to evaluate the influence of instrumental extraction (forceps, suction cup, spatula) during delivery on the need for orthodontic treatment. Questionnaires on the type of delivery were distributed in three different structures. The need for treatment was assessed using the IOTN indicator (Index of Orthodontic Treatment Need). The groups were compared by statistical tests at the significance level of 5 %. 202 patients were included (51 in the group « instrumental delivery ¼, 151 in the control group). With an average IOTN of 3.3 in the « instrumental delivery ¼ group versus 2.5 in the « non-instrumental delivery ¼ group, the difference between the two groups is statistically significant (p = 0.00015). Since the need for orthodontic treatment is significantly higher in patients born by instrumental delivery compared to patients born without instrumental support, instrumental extraction is therefore a risk factor in orthodontics, diagnosis and orthodontic treatment may be indicated in these patients. In addition, provided that it is proven effective, early osteopathic management may be recommended.


Asunto(s)
Maloclusión , Ortodoncia , Atención Odontológica , Humanos , Indice de Necesidad de Tratamiento Ortodóncico , Maloclusión/terapia , Ortodoncia Correctiva , Estudios Retrospectivos
10.
Orthod Fr ; 91(3): 209-224, 2020 10 01.
Artículo en Francés | MEDLINE | ID: mdl-33146616

RESUMEN

This study is aimed at evaluating the Oral Health Related Quality of Life (OHRQoL) in adolescents aged 11-14 years-old during orthodontic therapy and 18 months after the start of treatment and the possible role of psychological parameters. Sixty patients were recruited, and data were collected using self-administrated questionnaires and intraoral clinical examinations. The questionnaires included sociodemographic characteristics (age, gender), the Lebanese version of the Child Perception Questionnaire between 11 and 14 years CPQ11-14 to assess the OHRQoL, the Discrepancy Aesthetic Index (DAI) for malocclusion, and the Child Health Questionnaire « CHQ-CF87 ¼ to appraise Self-Esteem (SE) and Psychological Well-Being (PWB). The mean scores of CPQ11-14 and its four subdomains were significantly better for participants with high SE /PWB compared to those with low SE / PWB at baseline. These same scores improved significantly during orthodontic treatment (p < 0.001). However, DAI was significantly better in patients with low self-esteem and psychological well-being. Our findings showed improvement in oral health perception and psychologic parameters during orthodontic treatment. Investigators should consider the need to control the psychological parameters of patients when assessing orthodontic treatment need and improvement in OHRQoL during orthodontic treatment.


Asunto(s)
Maloclusión , Calidad de Vida , Adolescente , Niño , Estudios Transversales , Estética Dental , Humanos , Maloclusión/terapia , Salud Bucal , Autoimagen , Encuestas y Cuestionarios
11.
Georgian Med News ; (306): 37-40, 2020 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-33130643

RESUMEN

The purpose of the study was to evaluate the functional resistance of enamel in children with malocclusions. Material and research methods: there were examined 579 children aged 12-16 years with malocclusions and was determined the functional enamel resistance. The data obtained in the study indicate that the prevalence of malocclusions among examined children, according to the average data, is 67,76±1,99%. There is a tendency to decrease the number of persons with orthodontic pathology with the age among the examined group of children. It was found that from 12 to 16 years the prevalence of malocclusions decreases from 71,5±4,47% to 64,17±4,38%, р>0,05. The lowest prevalence of malocclusions is found in the group of 16-year-old children. From 12 to 13 years the prevalence of malocclusions decreases by 3,43%, from 13 to 14 years - by 2,49%, from 14 to 15 years increases by 0,72%, and by 16 years decreases by 5,38%. The decrease in the prevalence of malocclusions in the group of examined children with age is explained by the increase in the number of persons who were orthodontic treated and were good motivated to improve their aesthetic appearance. Among children with caries resistant enamel (CR) 35,22±2,48% of persons were revealed with malocclusions and 51,97±3,75% - without malocclusions, (р<0,01), among children with reduced enamel resistance (RR) and caries susceptible enamel (CS) - 64,78±2,48% and 48,03±3,75%, respectively, p<0,01. Among children with CR enamel from 12 to 16 years, the number of persons with malocclusions decreases by 16,14% (from 35,62±5,60% to 29,87±5,22%), and among children with RR and CS enamel - increases by 8,93% (from 64,38±5,60% to 70,13±5,22%). In children without malocclusions there are no clear trends, regardless of the enamel resistance level. It was found that among all children with crowding 30,00±3,42% persons had caries-resistant enamel, and in 70,00±3,42% of children the enamel was reduced resistant or caries-susceptible, р<0,001. Thus, the results of the study showed that in children with CR enamel, malocclusions are much more common than in chidren with RR and CS enamel. In children with CS enamel, the enamel structure is resolved, which can be caused by a violation of the mineral metabolism, especially during the period of development and formation of the body. Against the background of such disorders, there may be susceptibility to the development of dental caries and malocclusions, which is important to consider when carrying out preventive measures.


Asunto(s)
Caries Dental , Maloclusión , Adolescente , Niño , Caries Dental/epidemiología , Esmalte Dental , Humanos , Maloclusión/epidemiología , Prevalencia
12.
Am J Orthod Dentofacial Orthop ; 158(6): e121-e136, 2020 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-33250105

RESUMEN

INTRODUCTION: This article evaluates and reports on the satisfaction of adult patients across the United States who received orthodontic treatment for anterior open bite malocclusion. The factors that influence satisfaction are also described. METHODS: Practitioners were recruited from the National Dental Practice-Based Research Network. On joining the Network, practitioner demographics and information on their practices were acquired. Practitioners enrolled their adult patients in active treatment for anterior open bite. Patient demographics, patient dentofacial characteristics, and details regarding previous and current treatment were collected through questionnaires at enrollment (T1). Pretreatment lateral cephalograms and intraoral frontal photographs were submitted. Treatment performed, and details related to treatment outcome were recorded through questionnaires at the end of active treatment (T2). Posttreatment lateral cephalograms and intraoral frontal photographs were submitted. Patient satisfaction at T2 was assessed using a 5-point Likert-type scale and open-ended responses. Predictive univariate models were developed to evaluate the factors that affect patient satisfaction. Open-ended responses were reviewed for general trends. RESULTS: T2 data were received for 260 patients, and 248 of these patients completed and returned the patient satisfaction questionnaires. High levels of satisfaction were found in this sample of adult patients receiving treatment for anterior open bite malocclusion. Specifically, 96% of the sample reported being very or somewhat satisfied. Only 10 patients (4%) were not satisfied with the treatment provided or an element of the final result. Successful open bite closure, treatment modality, and certain patient characteristics may affect patient satisfaction. However, there was insufficient power to demonstrate statistical significance because of the very low number of dissatisfied patients. Open-ended responses directly associated with patient satisfaction were received from 23 patients (9%). They relayed positive, neutral, and negative feelings about the treatment received and final results. Additional responses regarding the orthodontic treatment in general, but not specifically linked to patient satisfaction, were received from 119 patients (48%). These comments depict an overwhelmingly positive experience. CONCLUSIONS: Adult patients who received orthodontic treatment for anterior open bite malocclusion were generally satisfied with the treatment provided, as well as the final esthetic and functional results.


Asunto(s)
Maloclusión , Mordida Abierta , Adulto , Estética Dental , Humanos , Maloclusión/terapia , Mordida Abierta/terapia , Satisfacción del Paciente , Encuestas y Cuestionarios , Resultado del Tratamiento
13.
Head Face Med ; 16(1): 32, 2020 Nov 26.
Artículo en Inglés | MEDLINE | ID: mdl-33243257

RESUMEN

BACKGROUND: The Multiloop Edgewise Archwire (MEAW) appliance is an orthodontic treatment method suitable for the therapy of severe types of malocclusions such as open bites or anterior crossbites. The cephalometric Denture Frame Analysis (DFA) provides a supportive diagnostic tool for patient-specific treatment planning concerning the rearrangement of occlusion within the "denture frame". The objective of this study is to give a comprehensive overview of the national and international scientific literature about MEAW and DFA regarding the general therapeutic effects, advantages and limitations. METHODS AND MATERIALS: A computerized literature search was performed using four principal medical databases (PubMed/Medline, Google Scholar, Web of Science and Cochrane Central Register of Controlled Trials) and supplemented by manual searching of the references listed in the retrieved articles. The results were screened and assessed following the PRISMA guidelines. RESULTS: Six hundred seventy-seven full articles were assessed for eligibility. A number of 134 articles went through qualitative analysis and 3 studies were finally involved in comparative synopsis. The findings reveal advantageous characteristics of the MEAW technique such as a high degree of three-dimensional individual tooth control and a comparatively low load deflection rate, causing mostly dentoalveolar changes without significantly influencing the skeletal structures. CONCLUSION: Based on current literature, the MEAW technique appears to have several therapeutic benefits and serves as a sufficient alternative treatment method for dentoalveolar compensation, when measures of orthognathic surgery are rejected. Concerning the deficient data basis of available literature and the low level of scientific evidence, further studies are required in order to expand on the knowledge in this subject area. Several aspects like the effectiveness or the long-term stability have to be evaluated more extensively. Moreover, the transferability of the DFA to ethnic groups other than the Asian ethnicity should be examined further.


Asunto(s)
Maloclusión , Alambres para Ortodoncia , Cefalometría , Dentaduras , Humanos , Maloclusión/terapia , Técnicas de Movimiento Dental
14.
Shanghai Kou Qiang Yi Xue ; 29(4): 386-389, 2020 Aug.
Artículo en Chino | MEDLINE | ID: mdl-33089287

RESUMEN

PURPOSE: The purpose of this study was to investigate the periodontal status in adult periodontal disease patients with malocclusion treated with digital clear aligners. METHODS: Thirty-three patients with periodontal disease who needed orthodontic treatment were selected. The patients were randomly divided into 2 groups, digital clear aligners group (experimental group, 16 patients) and fixed appliances group (control group, 17 patients). Bleeding index (BI), probing depth(PD), plaque index(PLI) and gingival index(GI) were recorded at baseline and 1, 3, 6 and 9 months during orthodontic treatment. SPSS 17.0 software package was used to analyze and compare the data of periodontal status between two groups. RESULTS: 1, 3, 6, and 9 months after orthodontic treatment, clinical parameters of the control group were significantly higher than baseline(P<0.05). The same measurements of the experimental group showed no significant differences at 1, 3, 6, and 9 months of treatment (P>0.05). After 1, 3, 6, and 9 months of treatment, the clinical parameters of BI, PLI and GI in the experimental group were significantly lower than the control group(P<0.05); PD in the experimental group was smaller than the control group, but there was no significant difference(P>0.05). CONCLUSIONS: Compared with conventional fixed appliance, clear aligner of digitalization can more effectively maintain periodontal heath in adult periodontal disease patients with malocclusion.


Asunto(s)
Maloclusión , Aparatos Ortodóncicos Removibles , Enfermedades Periodontales , Adulto , Índice de Placa Dental , Humanos , Maloclusión/terapia , Enfermedades Periodontales/terapia , Índice Periodontal
15.
Shanghai Kou Qiang Yi Xue ; 29(4): 410-413, 2020 Aug.
Artículo en Chino | MEDLINE | ID: mdl-33089292

RESUMEN

PURPOSE: To investigate the effect of invisalign on anterior and posterior upper airway and maxillary bone changes in the treatment of high-angle skeletal Class II malocclusion. METHODS: Thirty-seven patients with malocclusion undergoing invisible orthodontic treatment in Hospital of Stomatology of Xi'an Jiaotong University from June 2016 to June 2018 were enrolled. Before and 18 months after correction, the correction effect was evaluated. Cone-beam CT (CBCT) was performed to measure the upper airway volume and tongue position. Cephalometric examination was performed to determine the anteroposterious diameter of the upper airway and the position of hyoid bone. The pre-therapy and post-treatment facial profile images of patients and stars were graded by 0-10 numerical rating scale. SPSS 20.0 software package was used to analyze the data. RESULTS: After correction, oropharyngeal volume, glossopharyngeal volume and minimum cross-sectional area of upper airway significantly increased(P<0.05). Sagittal diameter of the upper airway at mandibular plane significantly increased after correction (P<0.05). After correction, ANB angle, GoGn-SN angle, OPP-SN angle, Y-axis angle, UI-SN angle, UI-PP angle, UI-AP angle, and UI-AP distance significantly decreased, SNB angle and UI- LI angle significantly increased(P<0.05). The aesthetics scores of facial profile images significantly increased after correlation(P<0.05), which was significantly lower than that of the stars(P<0.05). CONCLUSIONS: Invisalign can effectively correct open upper airway and malocclusion, achieving better treatment results and satisfactory facial aesthetics effect.


Asunto(s)
Maloclusión , Aparatos Ortodóncicos Removibles , Cefalometría , Estética Dental , Humanos , Maxilar/diagnóstico por imagen
16.
Am J Orthod Dentofacial Orthop ; 158(5): 694-699, 2020 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-33008711

RESUMEN

INTRODUCTION: Children with attention deficit hyperactivity disorder (ADHD) have more sleep breathing problems and parafunctional oral habits than individuals without ADHD. However, there is scarce information on the correlation between their dental malocclusion and these functional disorders. The objective of this study was to assess the severity of malocclusion in patients with and without ADHD and to evaluate the correlation between their functional disorders and dental malocclusion. METHODS: Eighty-eight patients aged 6-17 years were divided into 2 groups: ADHD (n = 44) and control (n = 44). A medical questionnaire to assess functional disorders and an orthodontic examination to evaluate malocclusion were completed for each patient. Distribution of the data was evaluated using Shapiro-Wilk test, whereas the 2 groups were compared with a t test, Mann-Whitney U test, Fisher exact test, and Spearman correlation. The association between parafunctional oral habits, ADHD drug intake, and malocclusion severity were assessed with a t test and Mann-Whitney U test. RESULTS: Patients with ADHD had significantly higher severity of malocclusion (P = 0.042), more dental rotation (P = 0.021) and more parafunctional oral habits (P = 0.001), specifically bruxism (P = 0.005), and a history of pacifier use (P = 0.009), than the control group. CONCLUSIONS: It is important to be aware of the increased risk of parafunctional oral habits and dental malocclusion among ADHD patients to develop preventive programs, as well as therapeutic strategies for them.


Asunto(s)
Trastorno por Déficit de Atención con Hiperactividad , Maloclusión , Adolescente , Trastorno por Déficit de Atención con Hiperactividad/complicaciones , Estudios de Casos y Controles , Niño , Humanos , Maloclusión/complicaciones , Maloclusión/epidemiología , Encuestas y Cuestionarios
17.
Stomatologiia (Mosk) ; 99(5): 69-73, 2020.
Artículo en Ruso | MEDLINE | ID: mdl-33034180

RESUMEN

The purpose of the study was to evaluate the efficacy of vacuum-gradient therapy in reducing orthodontic treatment time. MATERIALS AND METHODS: The study comprised 57 patients aged from 25 to 35 years (mean age 28.8±4.6 years) with teeth crowding divided into two groups. In group 1 (n=29) orthodontic correction was combined with vacuum-gradient therapy by means of modified «AVLT-Desna¼ device, while patients in group 2 (n=28) underwent orthodontic correction alone. Microhaemo- and lymphocirculation was studied by laser Doppler flowmetry. RESULTS: Lymph draining and microhaemocirculation are impaired by teeth crowding. Orthodontic correction influences on microhaemo- and lymphocirculation of periodontal tissue on tooth movement and improves mechanisms of haemodynamic regulation. CONCLUSIONS: The method of vacuum-gradient therapy combined with complex malocclusion correction allows to accelerate orthodontic treatment and to improve microcirculation in the moved teeth area.


Asunto(s)
Maloclusión , Diente , Adulto , Atención Odontológica , Humanos , Técnicas de Movimiento Dental , Vacio , Adulto Joven
18.
Stomatologiia (Mosk) ; 99(5): 103-110, 2020.
Artículo en Ruso | MEDLINE | ID: mdl-33034186

RESUMEN

The article presents two cases of sisters with malocclusion: distal deep bite with typical skeletal and soft tissue deformation. In the first case classic three-steps orthognatic treatment plan was realized: orthodontic preparation with subsequent orthognatic bi-maxillar surgery with genioplasty. In second one we made contour-plasty with implants. Two different plans follow to two different results. Discussion around all differences of two approaches is the main interest of this overview.


Asunto(s)
Maloclusión , Cirugía Ortognática , Procedimientos Quirúrgicos Ortognáticos , Mentoplastia , Humanos
19.
J Contemp Dent Pract ; 21(6): 686-690, 2020 Jun 01.
Artículo en Inglés | MEDLINE | ID: mdl-33025940

RESUMEN

AIM: To study the prevalence of different malocclusion traits in Najran in Saudi adolescents and adults seeking orthodontic treatment in Najran in Saudi Arabia. MATERIALS AND METHODS: Two hundred and fifty male patients in the age group of 12-35 years who visited faculty of dentistry in Najran University for orthodontic treatment were examined and were divided into two age groups, adolescents and adults. The patients were examined and classified into Class I, Class II, and Class III malocclusions. They were also examined for overjet, overbite, open bite, crossbite, scissor's bite, crowding, and spacing. RESULTS: The prevalence of Angle's malocclusion Classes I, II, and III was 52.8%, 31.6%, and 15.6%, respectively. The most common anomaly was moderate overbite followed by lateral open bite. Posterior crossbite was found to be more prevalent than anterior crossbite. CONCLUSION: Angle's Class I malocclusion was most prevalent type, followed by Class II, and then Class III. CLINICAL SIGNIFICANCE: The findings of this study can be used to formulate an appropriate preventive and orthodontic treatment measures pertaining to the population of adolescent and adult Saudi males.


Asunto(s)
Maloclusión , Mordida Abierta , Sobremordida , Adolescente , Adulto , Niño , Humanos , Masculino , Maloclusión/epidemiología , Prevalencia , Arabia Saudita/epidemiología , Adulto Joven
20.
Annu Int Conf IEEE Eng Med Biol Soc ; 2020: 1294-1298, 2020 07.
Artículo en Inglés | MEDLINE | ID: mdl-33018225

RESUMEN

Analyzing and interpreting cone-beam computed tomography (CBCT) images is a complicated and often time-consuming process. In this study, we present two different architectures of multi-channel deep learning (DL) models: "Ensemble" and "Synchronized multi-channel", to automatically identify and classify skeletal malocclusions from 3D CBCT craniofacial images. These multi-channel models combine three individual single-channel base models using a voting scheme and a two-step learning process, respectively, to simultaneously extract and learn a visual representation from three different directional views of 2D images generated from a single 3D CBCT image. We also employ a visualization method called "Class-selective Relevance Mapping" (CRM) to explain the learned behavior of our DL models by localizing and highlighting a discriminative area within an input image. Our multi-channel models achieve significantly better performance overall (accuracy exceeding 93%), compared to single-channel DL models that only take one specific directional view of 2D projected image as an input. In addition, CRM visually demonstrates that a DL model based on the sagittal-left view of 2D images outperforms those based on other directional 2D images.Clinical Relevance- the proposed method aims at assisting orthodontist to determine the best treatment path for the patient be it orthodontic or surgical treatment or a combination of both.


Asunto(s)
Aprendizaje Profundo , Maloclusión , Tomografía Computarizada de Haz Cónico , Humanos , Imagenología Tridimensional
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