Percepção dos pais sobre os sinais e sintomas decorrentes da erupção dentária em bebês / Parents' perception about tooth eruption signs and symptoms in babies

A erupção dentária é definida como a movimentação dos dentes em desenvolvimento para emergir através dos tecidos moles da maxila e da mandíbula. O primeiro dente decíduo geralmente irrompe na cavidade bucal em um intervalo entre quatro e dez meses de idade e manifestações locais e sistêmicas associadas à erupção são observadas e relatadas por pais de bebês que passam pelo processo. Deste modo, este trabalho busca revisar e analisar a literatura em relação à percepção dos pais sobre os sinais e sintomas observados durante o processo de erupção dentária em bebês. Foi realizada uma revisão integrativa da literatura, buscando por artigos indexados nas bases eletrônicas de dados PubMed e Portal BVS. Ao final, foram selecionados 16 artigos científicos, sendo em sua maioria estudos com delineamento transversal (n: 11). Apenas dois estudos foram realizados no Brasil, sendo a Índia (n: 4) o país com maior número de artigos incluídos. Os sinais e sintomas mais relatados pelos pais foram febre (n: 16), perda de apetite (n: 13) e aumento da salivação (n: 12). Os estudos analisados apresentaram limitações, como a falta de padronização dos questionários direcionados aos pais. Compreende-se, desta forma, que mais estudos com populações variadas, amostras maiores e questionários padronizados são necessários.

Dental eruption is defined as the movement of developing teeth to emerge through the soft tissues of the maxilla and mandible. The first deciduous tooth usually erupts into the oral cavity between the fourth and tenth month of age. During this time, local and systemic manifestations are observed and reported by parents of babies who undergo the process. Thus, this stud seeks to review and analyze the literature regarding the perception of parents about the signs and symptoms observed during the process of tooth eruption in babies. An integrative literature review was performed, searching for articles indexed in PubMed and Portal BVS electronic databases. Sixteen papers were selected, mostly of which were cross-sectional studies (n: 11). Only two studies were carried out in Brazil, with India (n: 4) being the country with the highest number of articles included. The most reported signs and symptoms were fever (n: 16), loss of appetite (n: 13) and increased salivation (n: 12). The analyzed studies had limitations, such as the lack of standardization of the questionnaires addressed to parents. We conclude more studies with varied populations, larger samples and standardized questionnaires are needed.

Microbiota of dental caries in primary teeth of a Costa Rican Child population / Microbiota de la caries dental en piezas primarias de una población infantil costarricense

Abstract The objective of this research was to identify bacteria present in the microbiota of dentinal carious lesions in primary molars of some Costa Rican pediatric patients. Data were collected from 15 children aged between 4 and 8 years old who attended the Pediatric Dentistry Clinic at the Faculty of Dentistry from the University of Costa Rica (UCR). The inclusion criteria were: infants between 4 and 8 years old who presented cavitated carious lesions in primary teeth, who were actively attended by students at the Faculty of Dentistry from the UCR, and whose parents or legal guardians signed the informed consent to participate in this research. Samples were taken using a sterile spoon, placed in storage vials, and subjected to various conventional and molecular microbial identification techniques, such as Gram stain identification, catalase tests, oxidase, TSI, API 20E, API STAPH, and VITEK 2. Of the 60 bacterial strains subjected to Gram staining, the following was obtained: 28 Gram-positive bacteria and 32 Gram-negative bacteria. The main isolated organisms were species of Staphylococcus epidermidis, Pasteurella pneumotropica/Mannheimia haemolytica, Pantoea spp, and Streptococcus mutans.

Resumen El objetivo de esta investigación fue identificar las bacterias presentes en la microbiota de lesiones cariosas dentinales en molares primarias de pacientes pediátricos costarricenses. Las muestras fueron recolectadas de 15 niños entre los 4 y 8 años que fueron atendidos en la Clínica de Odontopediatría en la Facultad de Odontología de la Universidad de Costa Rica (UCR). Los criterios de inclusión fueron: pacientes entre los 4 y los 8 años de edad que presentaran lesiones cariosas cavitadas en dientes primarios, que se encuentraran activos para su atención por estudiantes de la Facultad de Odontología de la UCR, y que los padres o encargados legales firmaran el consentimiento informado para participar en esta investigación. Las muestras se tomaron utilizando una cuchareta estéril, colocándolas en viales de almacenamiento y fueron sometidas a diversas técnicas de identificación microbiana convencionales y moleculares tales como: identificación por Tinción de Gram, pruebas catalasa, oxidasa, TSI, API 20E, API STAPH y VITEK. De las 60 cepas bacterianas sometidas a tinción de Gram se obtuvo: 28 bacterias Gram Positivas y 32 bacterias Gram Negativas. Los principales organismos aislados fueron: especies de Staphylococcus epidermidis, Pasteurella pneumotropica/ Mannheimia haemolytica, Pantoea spp y Streptococcus mutans.

Fluoruro de estaño en el control de cavidades sin restauración en dientes temporales / Stannous fluoride in nonrestorative cavity control in primary teeth

Introducción: el control de cavidades sin restauración (NRCC, por sus siglas en inglés), es una opción de tratamiento conservador y no invasivo para dentina cariosa, sobre todo en dentición temporal. Una de las estrategias del NRCC es la remineralización. El fluoruro de estaño (FDE) puede considerarse, como una opción viable ya que existe evidencia de su eficacia cariostática. Objetivo: valorar al FDE como remineralizante alternativo en dentina de molares temporales, asociado al NRCC. Material y métodos: se efectuó un estudio clínico, epidemiológico, y descriptivo con preescolares voluntarios de 3 a 5 años de edad con consentimiento firmado de participación en el estudio, y que presentaron molares con ICDAS 5 y 6. La aplicación del FDE a 0.8%, la evaluación de la dureza de la dentina con los criterios de Nyvad, y el diagnóstico del estado pulpar, la efectuó un operador entrenado para esta finalidad. Se aplicó un análisis estadístico descriptivo y uno no paramétrico. Resultados: el efecto cariostático producido por el FDE a 0.8%, sobre dentina afectada de molares temporales de niños mexicanos fue estadísticamente significativo durante cinco meses. Conclusiones: la aplicación de fluoruro de estaño puede considerarse como una alternativa de tratamiento cariostático asociado al NRCC para niños de 3 a 5 años de edad (AU)

Introduction: nonrestorative cavity control (NRCC), is a conservative and non-invasive treatment option for carious dentin, especially in primary dentition. One of the NRCC strategies is remineralization. Stannous Fluoride (SDF) can be considered as a viable option since there is evidence of its cariostatic efficacy. Objective: to evaluate FDE as an alternative remineralizing agent in the dentin of primary molars, associated with NRCC. Material and methods: a clinical, epidemiological, and descriptive study was carried out with preschool volunteers aged 3 to 5 years with signed consent to participate in the study, and who presented molars with ICDAS 5 and 6. The application of FDE at 0.8%, the evaluation of dentin hardness with the Nyvad criteria, and the diagnosis of pulp status, was carried out by an operator trained for this purpose. A descriptive and non-parametric statistical analysis was applied. Results: the cariostatic effect produced by 0.8% FDE on affected dentin of primary molars of Mexican children was statistically significant for five months. Conclusions: the application of stannous fluoride can be considered as an alternative cariostatic treatment associated with NRCC for children 3 to 5 years of age (AU)

Risk factors associated with occlusal caries in first permanent molars in a school program: longitudinal study

Aim: Evaluate the longitudinal status of dental caries in the occlusal surface of first permanent molars (FPM) and to identify risk factors for the progression to cavitated caries lesions in a school oral health program. Methods: Children who were enrolled in the program between September 2017 and October 2019, 5 to 10 years-old, presenting the four FPM were included. Four calibrated examiners assessed dental caries according to Nyvad criteria. Descriptive analysis included frequency, mean, and standard deviation calculations. Chi-square test was used in the bivariate analysis and, logistic regression adjusted for cluster effect was used to identify significant risk factors for cavity among the following independent variables: gender, age in the baseline, deft, upper/lower molar, initial caries score, Molar Incisor Hypomineralization (MIH), fluorosis, occlusal sealing. Odds ratio (OR) and respective confidence intervals (CI) are presented. Results: From 174 children enrolled in the program between 2017/2019, 120 were reevaluated in 2022. Eleven (2.6%) FPM in 11 children (9.2%) presented cavitated caries in the follow up examination. Significant risk factors for cavity were caries experience in the primary teeth (OR = 5.59; CI: 1.4 ­ 22.3) and the presence of MIH (OR = 5.33; CI: 1.6 ­ 18.1). Most of the active lesions in the follow up were considered active in the baseline examination. Conclusions: The progression to cavity was relatively low, significantly influenced by past caries experience and MIH

Knowledge of Physical Education Students about Tooth Avulsion Before and After Receiving an Informative Leaflet

Abstract Objective: To evaluate the knowledge of Physical Education students about tooth avulsion (TA) in both dentitions before and after receiving an informative leaflet (IL). Material and Methods: The questionnaire contained information about TA in dentition and its management and was applied to the Physical Education students before and after reading an IL. Results: A total of 118 students, 96.61%, attended a first aid course, and 17.80% received information about TA. Most students (88.98%) never had an experience with TA, and 90.68% considered its management important. The other questions, before and after reading the IL, respectively, were: would not perform deciduous tooth replantation (42%; 88%); knew how to handle the avulsed permanent tooth (APT) (38%; 92%); knew how to clean the APT (50%; 99%); knew that permanent tooth replantation (PTR) must be immediate (15%; 95%); knew the ideal time to seek for the dentist right after TA without performing PTR (6%; 83%); knew how to store APT (31%; 97%). Conclusion: The knowledge of Physical Education students in this research revealed a limited understanding of dental tooth avulsion. After receiving an informative leaflet, the students showed a significant improvement in knowledge about traumatic avulsion management, including tooth replantation and proper actions.

Is Cavity Lining Really Necessary After Selective Caries Removal in Primary Teeth?

ABSTRACT Objective: To evaluate the clinical and radiographic response of pulp-dentin complex after selective caries removal with or without pulp lining in primary teeth. Material and Methods: Twenty-four primary molars with deep occlusal caries lesions and without pulpal alterations were selected from children, both genders, aged between 5 and 9 years old. After selective caries removal, the teeth were divided into three groups: without cavity liner (Group I), calcium hydroxide cement - CH (Group II), and Mineral trioxide aggregate - MTA (Group III). The final restoration was performed with resin-modified glass ionomer cement. Clinical and radiographic assessments were conducted at 6-month follow-up. The Kappa test determined intraexaminer reliability. Fisher's exact test evaluated intergroup comparisons (p<0.05). Results: All teeth showed clinical and radiographic success at the 6-month follow-up without statistically significant differences (p>0.05). Conclusion: Selective caries removal without cavity lining was acceptable for deep caries lesions in primary teeth.

Bibliometric Study of Publications on Eruption of Deciduous and Permanent Teeth

ABSTRACT Objective: To perform a bibliometric analysis on deciduous and permanent eruption publications to discuss the global trends and prospects on the topic. Material and Methods: A systematic search was conducted on the Scopus database. The characteristics of the publications, including co-cited authors, organizations, countries, most cited sources, publications, and keyword co-occurrence, were analyzed using VOSviewer software version 1.6.18. Results: After applying exclusion criteria, 492 studies were included in the analysis. The majority of research centers were located in Europe. "Archives of Oral Biology" emerged as the most frequently cited journal. The United States and Brazil were the most frequently cited countries in the publications. Notable co-authors included Kuchler E. C. and Hägg U. The most frequently cited keywords were associated with oral pathologies, tooth development, odontogenesis, and genetics. The most recent papers were published in journals focused on oral diseases. Conclusion: This bibliometric analysis highlights that the future of research in this field is likely to be focused on the investigation of tooth eruption in both deciduous and permanent teeth, with an emphasis on genetics, tooth development, timing of tooth eruption, and syndromic conditions. While well-accepted in the fields of Pediatrics and Orthodontics, there is a growing interest in this topic within oral biology and pathology journals in the Americas, with the United States and Brazil leading in terms of publications and citations.

Cytotoxic effects of bioceramic materials on stem cells from human exfoliated deciduous teeth (SHED) / Efeitos citotóxicos de materiais biocerâmicos em células-tronco de dentes decíduos esfoliados humanos (SHED)

Objective: This study aimed to evaluate stem cell from human deciduous teeth (SHED) viability after exposure to different bioceramic materials. Material and Methods: Discs were constructed to obtain the material extracts according to the following groups: G1 - Bio-C Repair, G2 - MTA Repair HP, G3 - TheraCal LC, and G4 ­ Biodentine. Positive and negative control group were respectively maintained with αMEM + 10% FBS and αMEM + 1% FBS. SHED obtained through primary culture were in contact with material extracts for 24, 48, and 72h. MTT assay evaluated cell viability. Groups were plated in triplicate and the cell viability assay were repeated three times. Data were analyzed by two-way ANOVA followed by Tukey test (p<0.05). Results: The treatment and period comparisons showed statistically significant differences (p<0.000). G2 (MTA Repair HP) had greater cell viability values than the other experimental groups and negative control. MTA Repair HP and the control groups exhibited a similar behavior with cell viability values decreasing from 24h to 48h and increasing from 48h to 72h. Bio-C Repair, Biodentine, and Theracal LC did not show statistically significant differences among periods. Conclusions: SHED increased viability values after contact with MTA Repair HP in comparison with other bioceramic materials.(AU)

Objetivo: O objetivo desse estudo foi avaliar a viabilidade de células-tronco de dentes decíduos humanos (SHED) após o contato com diferentes materiais biocerâmicos. Material e Métodos: Foram confeccionados discos para obtenção dos extratos dos materiais de acordo com os seguintes grupos: G1 - Bio-C Repair, G2 - MTA Repair HP, G3 - TheraCal LC e G4 - Biodentine. Grupo de controle positivo e negativo foram mantidos respectivamente com αMEM + 10% FBS e αMEM + 1% FBS. SHED obtidas por cultura primária entraram em contato com os extratos de materiais por 24, 48 e 72h. O ensaio MTT avaliou a viabilidade celular. Os grupos foram semeados em triplicata e o ensaio de viabilidade celular foi repetido três vezes. Os dados foram analisados por ANOVA a dois critérios seguido pelo teste de Tukey (p<0,05). Resultados: As comparações de tratamentos e períodos mostraram diferenças estatisticamente significativas (p<0,000). O G2 (MTA Repair HP) apresentou maiores valores de viabilidade celular que os demais grupos experimentais e controle negativo. O MTA Repair HP e os grupos controle exibiram um comportamento semelhante com os valores de viabilidade celular diminuindo de 24h para 48h e aumentando de 48h para 72h. Bio-C Repair, Biodentine e Theracal LC não apresentaram diferenças estatisticamente significativas entre os períodos. Conclusões: SHED aumentou os valores de viabilidade após o contato com o MTA Repair HP em comparação com outros materiais biocerâmicos (AU)

Perfil dos pacientes atendidos na clínica de traumatismo dentário na dentição decídua em Belo Horizonte/MG / Profile of patients assisted at the dental traumatic clinic in the primary dentition in Belo Horizonte/MG

Objetivo: O presente estudo teve como objetivo avaliar o perfil dos pacientes atendidos em um centro de referência de traumatismos dentários na dentição decídua, identificando as características sociodemográficas, frequência, tipos de lesões traumáticas e tratamentos realizados. Métodos:Trata-se de um estudo retrospectivo com prontuários odontológicos de crianças de 6 a 60 meses de idade atendidas na Clínica de Traumatismo na Dentição Decídua da FAO/UFMG no período de 2007 a 2019. Foram analisadas características das lesões traumáticas, da criança, atendimento imediato (2h após o trauma) e condições socioeconômicas. A análise dos dados foi realizada de maneira descritiva e consistiu na distribuição de frequência das variáveis. Resultados:Entre os 610 prontuários odontológicos, 365 crianças (59,8%) eram do sexo masculino; 335 (54,9%) tinham 3 anos de idade ou menos, 446 (73,1%) eram de baixa renda e 335 (54,9%) das mães estudaram até o ensino médio. Lesões aos tecidos duros dentários apresentaram a maior frequência em crianças com 3 anos de idade ou menos (60,4%), entretanto, após os 3 anos de idade, as lesões mais frequentes foram lesões aos tecidos de sustentação (48,0%). Dentre a classificação de lesões aos tecidos duros dentários, a trinca e/ou fratura de esmalte foi a lesão mais frequente (15,0%). A luxação intrusiva foi o trauma mais frequente nos tecidos de sustentação (11,2%) e lesão em gengiva foi mais frequente dentre lesões nos tecidos moles (9,5%). Em geral, 212 crianças (34,8%) buscaram atendimento em um intervalo menor ou igual a duas horas após o trauma. A exodontia foi o tratamento mais realizado: em casos de lesões aos tecidos de sustentação (47,1%), seguido do mantenedor de espaço (24,3%). Em tecidos duros dentários a exodontia também foi o tratamento mais frequente (50,7%), seguido de restauração e mantenedor de espaço (18,0%). Conclusão: Conclui-se que a maioria dos traumatismos dentários na dentição decídua foram em meninos com menos de 3 anos e as lesões mais comuns foram trincas/fratura de esmalte, seguidas das luxações intrusivas.

Aim: The aim of the present study was to evaluate the profile and characteristics of patients treated at a dental trauma reference center, and identifying frequency, types of traumatic injuries and treatments performed. Methods: This retrospective study was carried out with dental records of children aged 6 to 60 months attended at the Primary Dental Trauma Clinic of FAO/UFMG between 2007 and 2019. Characteristics of the child and traumatic dental injuries, immediate care (2 hours after the trauma) and socioeconomic status were analyzed. Data analysis was performed descriptively using frequency distribution. Results:Of the total of 610 dental records, 365 children (59.8%) were male; 335 (54.9%) were up to 3 years old, 446 (73.1%) were low-income and 335 (54.9%) had mothers who studied up to high school. Dental hard tissue injuries were more frequent in children aged 3 years or less (60.4%), but after 3 years of age, the most frequent injuries were supporting tissue injuries (48.0%). Among dental hard tissue injuries, enamel crack and/or fracture was the most frequent injury (15.0%). Intrusive luxation was the most frequent lesion in supporting tissues injuries (11.2%) and gingival lesions was the most frequent soft tissue injuries (9.5%). Overall, 212 children (34.8%) sought care within two hours of the injury. Extraction was the most common treatment for supporting tissue injuries (44.3%), followed by space maintainers (22.8%). In dental hard tissues injuries, extraction was also the most frequent treatment (35.8%), followed by restoration (30.2%). Conclusion: In conclusion, most traumatic dental injuries in the primary dentition occurred in boys under 3 years of age, and the most common injuries were enamel cracks/fractures, followed by intrusive luxation.

Optimizing endodontic treatment in primary teeth: a literature review / Otimização do tratamento endodôntico em dentes decíduos: uma revisão de literatura

Many factors influence the success and efficacy of endodontic treatment in primary teeth, such as unpredictability and the morphological complexity of the canals. Thus, the quality of the obturation materials should aim at decreasing the iatrogenic risks during pulpectomy to maintain primary teeth until their physiological exfoliation. Pulpectomy of primary teeth is challenging because longer chair-side time may negatively affect the behavioral management of the child. Considering that challenging approach, the professionals frequently search for technologies that optimize the treatment and improve root canal modeling and sanitization. To provide more comfort to the child during the treatment, recently, the advancements in permanent tooth endodontics have been employed in primary tooth pulpectomy such as apical locators, rotary instrumentation, and NiTi instruments. Therefore, this study aimed to review the use of these technologies and instruments in the endodontic treatment of primary teeth, emphasizing the relevant key factors for treatment success.

Há diversos fatores que influenciam no sucesso e na eficácia do tratamento endodôntico em Odontopediatria, destacando-se a imprevisibilidade e a complexidade morfológica dos canais. Sendo assim, existe a necessidade de uso de materiais de qualidade para diminuição dos riscos iatrogênicos durante a pulpectomia, sempre objetivando a manutenção dos dentes decíduos no arco dentário até a sua esfoliação fisiológica. Trata-se de um procedimento desafiador e demorado, que pode afetar negativamente o manejo entre o profissional e o paciente infantil. Logo, a busca constante por tecnologias que otimizem este tratamento, bem como a melhora na qualidade de modelagem e sanificação dos canais radiculares é frequente. Mais recentemente, os avanços da endodontia de dentes permanentes, estão sendo trazidos para a Odontopediatria, como o emprego dos localizadores apicais, sistemas de instrumentação mecanizados e uso de instrumentos com liga de NiTi, recursos capazes de diminuir o tempo de duração das sessões, proporcionando maior conforto para o paciente durante o atendimento. Portanto, o objetivo deste artigo é rever o uso destas tecnologias e instrumentos no preparo e tratamento dos canais radiculares de dentes decíduos, enfatizando pontos relevantes ao sucesso do atendimento, principalmente na Odontopediatria.

Periodontitis en niños sanos de 3 años: dos casos con seguimiento a 5 años / Periodontitis in healthy 3-year-old children: two cases with 5-year follow-up

Objetivo: La periodontitis en dentición primaria es ex- cepcional en niños sin enfermedades sistémicas. El objetivo de este informe es describir las características clínicas y ra- diográficas de dos casos de niños de 3 años sistémicamente sanos con periodontitis, y su tratamiento con seguimiento a 5 años. Casos clínicos: En ambos casos, a los 3 años de edad los niños fueron derivados al especialista en periodoncia por su odontopediatra debido a la pérdida muy temprana de inci- sivos inferiores. El examen clínico y radiográfico mostró pér- dida de inserción clínica, pérdida ósea y movilidad dental en otros incisivos superiores e inferiores. Se realizó la intercon- sulta médica y se descartó que los niños padecieran enferme- dades relacionadas con el diagnóstico de periodontitis como manifestación de una enfermedad sistémica. El tratamiento consistió en la instrucción de medidas de higiene bucal que debían ser ejecutadas por los padres, ins- trumentación subgingival, antisépticos locales, medicación antibiótica sistémica y mantenimiento periodontal. No se rea- lizaron extracciones como parte del tratamiento. En ambos casos uno de los incisivos presentes al momento de la con- sulta se perdió prematuramente, antes de los 4 años. El resto de los incisivos primarios cumplieron su ciclo normal. Luego de 5 años de seguimiento, a la edad de 8 años, ambos niños presentaban los incisivos y los primeros molares permanentes periodontalmente sanos y el resto de los dientes primarios sin signos de periodontitis (AU)

Aim: Periodontitis in primary dentition is exceptional in children without systemic diseases. The objective of this article is to describe the clinical and radiographic charac- teristics of two cases of systemically healthy 3-year-old chil- dren with periodontitis, and their treatment, with a 5-year follow-up. Clinical cases: In both cases, at 3 years of age, the chil- dren were referred to a periodontic specialist by their pediat- ric dentist, due to the very early loss of lower incisors. Clin- ical and radiographic examination showed loss of clinical attachment, bone loss and dental mobility in other upper and lower incisors. A medical consultation was carried out and diseases related to the diagnosis of periodontitis as a mani- festation of a systemic disease were ruled out. The treatment consisted of instruction on oral hygiene measures that had to be carried out by the parents, subgingival instrumentation, local antiseptics, systemic antibiotic medication, and perio- dontal maintenance. No extractions were performed as part of the treatment. In both cases, one of the incisors present at the time of consultation was lost prematurely, before the age of 4 years. The rest of the primary incisors completed their normal cycle. After 5 years of follow-up, at the age of 8 years, both children showed periodontally healthy incisors and first permanent molars, and the rest of the primary teeth without signs of periodontitis (AU)

Factores etiopatogénicos de maloclusión. Parte II: el factor dentario en la organización de la oclusión / Etiopathogenic factors of malocclusion. Part II: the dental effect in occlusal organization

El objetivo de esta publicación es continuar con el tema desarrollado en la primera parte, donde se esbozaron aspectos generales de la organización de la oclusión, como introducción al estudio de la etiopa- togenia de las maloclusiones, con el factor dentario como aspecto central. Probablemente es el que com- parte mayor presencia en maloclusiones, donde el factor principal es de otro origen, es decir, esqueletal o neuromuscular. Se expondrá, a continuación, la condición del espacio en los arcos dentarios, sea por exceso o defecto de material dentario, sea por pérdida de perímetro del arco dentario, en cuanto al diagnóstico y a conductas preventivas. La parte III se centrará en alteraciones de erupción dentaria (AU)

The objective of this publication is to continue with the theme developed in the first part, where general aspects of the organization of the occlusion were outlined, as an introduction to the study of the etiopathogenesis of malocclusions, with the dental factor as a central aspect. It is probably the one that shares the greatest presence in malocclusions where the main factor is of another origin, that is, skeletal or neuromuscular. Next, the condition of the space in the dental arches will be exposed, whether due to excess or defect of dental material or loss of perimeter of the dental arch, in terms of diagnosis and preventive behaviors. Part III will focus on dental eruption disorders (AU)

O reparo pode aumentar a sobrevida de restaurações que apresentam falhas quando comparado com a substituição em ambas as dentições? Revisão Sistemática e Meta-Análise / Can repair increase the survival of failed restorations when compared with replacement in both dentitions? Systematic Review and Meta-Analysis

O objetivo desta revisão sistemática foi coletar e comparar os dados de sobrevida após o reparo e substituição para restaurações com falhas em dentes decíduos e permanentes. As buscas foram realizadas em dez/2020 e atualizado em abr/2022 de forma sistemática nas bases de dados PubMed/MEDLINE, Scopus, Web of Science, Embase, OpenSigle e ProQuest. Dois revisores independentes calibrados (kappa=0,87) avaliados como critérios de inclusão: (1) estudos de reparo e substituição, (2) dados de sucesso, longevidade ou sobrevivência, (3) ensaios clínicos controlados aleatoriamente; e para os critérios de exclusão (1) perda para acompanhamento superior a 30%, (2) acompanhamento inferior a 12 meses, (3) dentes anteriores. A ferramenta RoB 2 foi utilizada para avaliar o risco de viés, enquanto que a certeza da evidência foi medida por meio da ferramenta GRADE. Foi identificado 4.070 publicações potencialmente relevantes, entretanto apenas três estudos apresentaram todos os critérios para elegibilidade e foram incluídos na análise qualitativa. Nenhum estudo reportou a taxa de sucesso das intervenções na dentição decídua. Foi coletado um tempo padrão de acompanhamento entre os estudos, e a taxa de sobrevivência agregada foi de 99% após três anos. Não houve diferença estatisticamente significativa entre as abordagens e nenhuma heterogeneidade entre os estudos foi apontada. Todos os estudos incluídos apresentaram alto risco de viés, além de que a certeza da evidência para a medida do desfecho sucesso foi muito baixa. É importante ressaltar que devido à longevidade similar de ambas as técnicas, é fortemente recomendado realizar a técnica de reparo para restaurações que apresentam falha, uma vez que esta técnica está associada à odontologia de intervenção mínima. Mais estudos clínicos bem delineados são necessários para aumentar a certeza da evidência. Registro do RS: Esta revisão sistemática foi registrada na plataforma Prospero (CRD42021238063)

Analysis of congenital deciduous teeth absence and its permanent teeth phenotype / 华西口腔医学杂志

OBJECTIVES@#This study aimed to investigate the clinical characteristics of congenital deciduous teeth absence and its permanent teeth performance type by using panoramic radiographs.@*METHODS@#A total of 15 749 panora-mic radiographs of 3-6-year-old children with deciduous dentition were collected from January 2020 to December 2021. The incidence of congenital deciduous teeth absence was observed, and the abnormality of permanent teeth was recor-ded. SPSS 24.0 software was used for statistical analysis.@*RESULTS@#The incidence of congenital deciduous teeth absence was 2.54% (400/15 749), which was found in 217 girls and 183 boys, and the difference between the genders was statistically significant (P=0.003). The absence of one and two deciduous teeth accounted for 99.75% (399/400) of the subjects. In addition, 92.63% (490/529) of mandibular deciduous lateral incisor was congenitally absent, 44.80% (237/529) of deciduous teeth was absent in the left jaw, and less than 55.20% (292/529) was absent in the right; the difference between them was statistically significant (P=0.017). The absence of 96.41% (510/529) deciduous teeth in the mandibular was significantly more than that of 3.59% (19/529) in the maxillary, and the difference between was statistically significant (P=0.000). Furthermore, 68.00% (272/400) and 32.00% (128/400) of deciduous teeth were absent in unilateral and bilateral, respectively, and the difference was statistically significant (P=0.000). Four types of congenital deciduous teeth absence with permanent teeth were observed as follows: 1) 73.91% (391/529) of permanent teeth was absent; 2) 20.60% (109/529) of permanent teeth was not absent; 3) the number of fused permanent teeth accounted for 4.91% (26/529); 4) the number of supernumerary teeth was 0.57% (3/529).@*CONCLUSIONS@#Although the absence of congenital deciduous teeth is less common than that of permanent teeth, it affects deciduous and permanent teeth to some extent. Dentists should pay attention to trace and observe whether abnormalities are present in the permanent teeth and take timely measures to maintain children's oral health.

Diagnosis and treatment of apical cyst of deciduous teeth with infection: a case report / 华西口腔医学杂志

There is a high incidence of chronic periapical periodontitis of deciduous teeth, however, there is a low incidence of the apical cyst. This paper reports a 7-year-old child with deciduous periodontitis caused by chronic periapical periodontitis of deciduous teeth. Through literature review, the etiology, imaging characteristics, diagnosis, differential diagnosis, and treatment methods were discussed to provide the basis for clinical diagnosis and treatment.

Considerations of the classification and treatment for fused teeth / 中华口腔医学杂志

Fused teeth were a phenomena of teeth anomalies in shape, which can affect the dental teeth both in primary and permanent dentition. Fused teeth do not only cause problems on crowding of dentition, abnormal occlusion and aesthetic, but also increase risks of dental caries, endodontics diseases, periapical diseases and periodontal diseases. Fusion of deciduous teeth may lead to abnormality of subsequent permanent teeth. Treatment of fused teeth may require multidisciplinary approach in endodontics, periodontics, oral and maxillofacial surgery, prosthodontics and orthodontics. The aim of the present article is to review the etiology, classification, clinical manifestations and treatment of fused teeth in order to provide dental clinicians with a reference of clinical management for fused teeth.

Dimensions of Occlusoproximal Cavitated Carious Lesions as a Cut-Off Point for Restorative Decision in Primary Teeth

ABSTRACT Objective: To investigate whether the dimensions of cavitated dentin carious lesions on the occlusoproximal surfaces of primary teeth could predict the location of cement-enamel junction (CEJ). Material and Methods: Two hundred extracted primary molars were selected and digital images were obtained. The teeth were set in arch models for clinical measurement. The cervical-occlusal (CO) and buccal-lingual/palatal (BL/P) cavities' dimensions were obtained by digital (Image J) and clinical (periodontal millimeter probe) assessments. The cervical margin location was also determined. The thresholds (cut-off points) were determined by sensitivity, specificity and the areas under the receiver operating characteristics curves (Az) for the two methods. Pearson's correlation coefficient was used to investigate the correlation between clinical and digital measurements. Logistic regression analysis was performed to evaluate the association between the dimensions and cervical margin location. Results: There was a strong correlation between methods for all measurements (CO: r=0.90, VL/P: r=0.95). Cavities with BL/P distance higher than 4.5 mm and CO dimension higher than 3.5 mm had a lower chance of presenting the cervical limit above the CEJ, irrespective of the measurement method. Conclusion: CO and VL/P dimensions could be used to predict the CEJ location and, ultimately, as a clinical parameter for restorative decision-making.

Establishing Cephalometric Norms in Primary Dentition Using Comprehensive Craniofacial Growth Analysis - A Digital Cephalometric Study

ABSTRACT Objective: To establish cephalometric norms in primary dentition among males and females using novel customized Comprehensive Cephalometric Growth (CCG) Analysis. Material and Methods: The study was conducted on 67 subjects with a mean age of 5.5 yrs. Digital lateral cephalometric radiographs were obtained using Planmeca Pro One. The digital images were then transferred to Nemoceph software. Craniofacial Growth (CCG) Analysis was configured in the software with five sub-groups. This sub-grouping was done such that related components were grouped together and comprehensively; it would provide an assessment of every component of the craniofacial region that could be affected either by treatment maneuver or growth process. The same was used for the cephalometric analysis and to determine the cephalometric norms in the primary dentition. Results: Certain linear measurements were higher among males when compared to females. However, most measurements remained similar among males and females during this age group. The CCG analysis provided a comprehensive knowledge of the craniofacial parameters during the growth process. Conclusion: The cephalometric norms during primary dentition thus established using Comprehensive Craniofacial Growth analysis would provide the data for early diagnosis and treatment planning in interceptive orthodontic treatment procedures.

A 14-Year Follow-Up Study of Sequelae in Primary Teeth and Permanent Successors After Dental Trauma

ABSTRACT Objective: To evaluate the presence of sequelae in primary teeth and their permanent successors, as well as associations between TDI and the presence of sequelae in both teeth. Material and Methods: In this 14-year retrospective study, 2.290 records were reviewed, 192 patients who suffered dental trauma in primary teeth were followed until the eruption of successor teeth were included. Descriptive, chi-square, and regression logistic with generalized estimating equations tests were performed (p<0.05). Results: 362 primary and successor teeth were followed. Sequelae were present in 71.8% of primary teeth and 25.7% of their successors. Teeth with complicated fracture (100%), extrusion (100%) and avulsion (100%) resulted in the largest amounts of sequelae in primary teeth and intrusion (61%) on their successors. Age was associated with sequelae in permanent teeth (p<0.01). Extrusion (OR 10.06; CI 2.12-47.63) and intrusion (OR 7.51; CI 2.73-20.70) had a higher risk to cause sequelae in primary and permanent teeth, respectively. Conclusion: The type of injury involved influenced the sequelae in traumatized teeth and their successors, and the age of the child influenced the presence of sequelae in permanent teeth.