Analysis of prevalence and diagnostic criteria of molar-incisor hipomineralization / Análisis de prevalencia y criterios diagnósticos de hipomineralización molar-incisiva

To identify the prevalence and diagnostic criteria of Molar-Incisor Hipomineralization (MIH) in the scientific literature. Materials and Methods: This is a bibliographical research conducted through the analysis of indexed articles until October 2017 in the PubMed, Web of Science and Scopus databases. The Medical Subject Headings (MESH) used were "Dental Enamel Hypoplasia" and "Molar Incisor Hypomineralization". The analysis of articles was carried out by two reviewers, who collected information independently. The following information was collected: author, year of publication, place of work (continent and country), sample calculation, sample number, age of participants, type of study, prevalence of molar-incisor hypomineralization and criteria used for diagnosis. Data were tabulated using Microsoft Excel for Windows and presented using descriptive statistics. Results: A total of 484 articles were found and 57 were included in the study. Most of the studies were conducted in Europe (35%), and 31.6% of the studies mentioned using a probability sampling. The number of study participants ranged from 99 for a study in Brazil to 3,591 in Kenya. The most frequent age was 8 years, while the predominant type of study was cross-sectional (91.2%). The prevalence varied from 0.4% to 37.3% and most studies (73.6%) employed the European Academy of Pediatric Dentistry criteria for the diagnosis of MIH. Conclusion: There is great variability in prevalence in different countries, probably due to the use of different diagnostic criteria being used, and due to different age groups and geographical variation.

Objetivo: Identificar la prevalencia y los criterios diagnósticos de la hipomineralización de incisivos molares (HIM) en la literatura científica. Materiales y métodos: Investigación bibliográfica realizada a través del análisis de artículos indexados hasta octubre de 2017 en las bases de datos PubMed, Web of Science y Scopus. Los Medical Subject Headings (MESH) utilizados fueron "Dental Enamel Hypoplasia" y "Molar Incisor Hypomineralization". El análisis de los artículos fue llevado a cabo por dos revisores, quienes recolectaron información de manera independiente. Se recopiló la siguiente información: autor, año de publicación, lugar de trabajo (continente y país), cálculo y número de muestra, edad de los participantes, tipo de estudio, prevalencia de hipomineralización molar-incisiva y criterios utilizados para el diagnóstico. Los datos se tabularon con Microsoft Excel para Windows y se presentaron con estadísticas descriptivas. Resultados: Se encontraron un total de 484 artículos y 57 se incluyeron en el estudio. La mayoría de los estudios se llevaron a cabo en Europa (35%), y el 31,6% de los estudios mencionados utilizaron una muestra probabilística. El número de participantes en el estudio varió de 99 en un estudio en Brasil a 3.591 en un estudio desde Kenia. La edad más frecuente fue de 8 años, mientras que el tipo de estudio predominante fue transversal (91,2%). La prevalencia varió de 0,4% a 37,3% y la mayoría de los estudios (73,6%) emplearon los criterios de la Academia Europea de Odontología Pediátrica para el diagnóstico de HIM. Conclusión: Existe una gran variabilidad en la prevalencia de HIM en diferentes Países, probablemente debido al uso de diferentes criterios de diagnóstico, al utilizar diferentes grupos de etarios y a la variación geográfica.

Association of oral conditions with quality of working life of brazilian police officers

Objective: to evaluate the impact on the quality of working life of brazilian police officers with temporomandibular disorders (TMD). materials and methods: the sample consisted of 52 subjects and information was collected through the WHOQOL-BREF questionnaire and the Fonseca anamnesis index to evaluate the level of temporomandibular disorder (TMD), followed by clinical examination to determine the experience of dental caries, by means of the DMFT index. descriptive and inferential statistical analysis (chi-square test) was performed through the statistical package for the social sciences software. The significance level was 5 percent. results: the sample was predominantly composed of males (94.2 percent) with a mean age of 39.4 years (±9.4) and mean service length of 17.3 years (±11.0). the mean DMFT index value was 15.6 (±6.1), especially the "filled" component, whose mean was 12.1 (±5.4). the presence of TMD was found in 67.3 percent of the sample, of predominating mild degree (91.4 percent). quality of working life (QWL) was classified as unsatisfactory/neutral by 57.7 percent of participants. there was a statistically significant association between QWL and presence of TMD (p<0.05); however, there was no association between DMFT index and the presence of TMD (p>0.05). conclusion: although military police officers presented a high mean DMFT index value, there was highest prevalence of the "filled" component, evidencing a past experience of caries and evidencing that this population has access to oral health services. the occurrence of TMD was high, predominating the mild degree, and there was an association with QWL.

Is playing string or wind musical instruments a risk factor for temporomandibular dysfunction? a systematic review

AIM. medical problems specifically affecting professional musicians are commonly mentioned in the literature. the present study is aimed to evaluate, through a systematic review, the possible association between the practice of string with bow and wind musical instruments and the occurrence of temporomandibular dysfunction (TMD). METHODS. the search for articles was conducted in PubMed/ Medline, Web of Science, Scopus, Lilacs, Cochrane Library, and Open Gray databases, and there was no restriction on language or date of publication. the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were followed. the MeSH terms used were: "music"; "temporomandibular joint"; "temporomandibular joint disorders"; "temporomandibular joint dysfunction syndrome"; and "occupational diseases". cross-sectional studies, case-control, cohort and clinical trials were included that involved the practice of string with bow and wind musical instruments and the occurrence of temporomandibular dysfunction (TMD). articles were previously selected by title and abstract. qualitative evaluation was done through the Newcastle-Ottawa scale. RESULTS. the literature search identified 732 studies, of which 10 met the inclusion criteria, nine of them cross-sectional studies and one a clinical intervention study. the TMD prevalence ranged from 47.0 percent to 89.0 percent. recruitment of participants took place in professional schools and orchestras, and in bands of professional musicians. all studies reported associations between TMD and the practice of musical instruments, and violinists presented higher prevalence rates when compared to other instrument groups. CONCLUSION. all studies pointed to a possible association between TMD and the practice of string and wind musical instruments. more longitudinal and clinical trials studies are needed to verify any possible interrelationship.