Incidência de cárie dentária em adolescentes em município do Nordeste brasileiro, 2006

NORO, Luiz Roberto Augusto et al. Incidência de cárie dentária em adolescentes em município do Nordeste brasileiro, 2006, Cadernos de Saúde Pública, Rio de Janeiro, v. 25, n. 4, p. 783-790, abr. 2009.

Avaliação da eficácia de selante ionomérico modificado por resina e escovação dentária na preservação de cárie oclusal

The purpose of this study was to evaluate the effectiveness during a twelve-month period, of resin-modified glass ionomer (Vitremer@) used as fissure sealants compared to supervised teeth brushing in the prevention of oclusal caries in permarient molars of pubIlc school children from 5 to 7 years of age. A total of 91 children participated in the study, being randomly divided up into three groups of investigation: group with sealant (n=31), group of supervised brushing (m=30), and control gorup (n=30). After 12 months, a total of 28.5% of tosses in the sample of 26 children was registered, and although there wasn t a significant diference between these losses and the groups studles (p = 0.6355), there was a considerable reduction in the sample. The results showed that none of the independentIy studied variables (present caries experience, biofilm, bleeding, sealant retention, position of the tooth in the arch, and sex) interfered in the final results, and that there was no significant difference between applying the sealant in question, perfornling supervised dental brushing, or not intervening at alI (p=0.542). These results could have been a consequence of the limitations found alI through the study, especially relating to the losses occurred because of school evasion, transfer, or because of the accident in the Marise Paiva Municipal School, Keeping students away for approximately one semester, so tht a new reseach had to be developed sos as to better clarify the effects among the treatments done there

Comprovação da real comunicação entre o endodonto e o periodonto através do canal cavo inter-radicular e sua prevalência em molares inferiores humanos

The neurovascular system of the pulp and of the periodontium is interconnected and among the possible intercommunications between these two tissues, there is the cavo inter-radicular canal. It is a small canal that goes through any inter-radicular dentine and arises in the furca region of the multi-radicular teeth. Its predominance has been studied in the literature, by several methodologies, with divergent results. The objective of this work was to establish, in vitro, the predominance of the cavo inter-radicular canal, in human lower molars, through the diaphanization technique and dye leakage. For this research, 140 teeth (100 first and second 40 lower molars) were selected, extracted due to different reasons, belonging to a teeth bank of the Endodontics discipline of the Dentistry College at Federal University of Rio Grande do Norte. The teeth were preserved in formol until the moment of use and immersed in physiological solution. Had the endodontic access fulfilled and the whole external surface, except for the furcation, sealed with two layers of nail enamel. The cleaning of the pulpar chamber floor was carried out with sodium hypochlorite solution 5%, being this solution renewed every 5 minutes, during 1 hour. The teeth were immersed in Indian dye and, after drying of the dye, they had their crowns split up in the amelo-cemental junction. Then, they were examined in a stereomicroscope, where marks of the coloring were observed in the furcation and on the pulpar floor. After this recording, the sample was diaphanized and with the transparent teeth, it was possible to observe in the stereomicroscope, the true inter-radicular canals. As a result of this experiment, the presence of these canals was observed in 13 % of the first and 7, 5 % of the second evaluated molars. The study showed that both the presence of the cavo inter-radicular canal is real and the diaphanization and dye leakage is an efficient method for this type of research

Bolton freeware: aplicativo de avaliação de discrepância de massa dentária desenvolvido pelo programa de pós-graduação em odontologia/UFRN

The calculation of tooth mass discrepancy, essential for good planning and a proper orthodontic finishing, when performed manually, besides being laborious, requires considerable time consumption. The aim of this study was to develop and test Bolton Freeware, a software for analysis of the tooth mass discrepancy of Bolton, aiming to minimize the consumption of time in a less onerous way. The digital analysis of the software was done by means of two-dimensional scanning of plaster study models and compared to manual evaluation (gold standard), using 75 pairs of stone plaster study models divided into two groups according to the magnitude of the Curve of Spee (group I from 0 to 2 mm, group II greater than 2 to 3mm). All the models had permanent dentition and were in perfect condition. The manual evaluation was performed with a digital caliper and a calculator, and the time required to perform the analysis for both methods was recorded and compared. In addition, the software was evaluated by orthodontists regarding its use, by means of questionnaires developed specifically for this purpose. Calibration was performed prior to manual analysis, and excellent levels of inter-rater agreement were achieved, with ICC > 0.75 and r > 0.9 for total and anterior proportion. It was observed in the evaluation of error of the digital method that some teeth showed a significant systematic error, being the highest measured at 0.08 mm. The analysis of total tooth mass discrepancy performed by Bolton Freeware, for those cases in which the curve of Spee is mild and moderate, differ from manual analysis, on average, 0.09 mm and 0.07 mm respectively, for each tooth evaluated, with r> 0, 8 for total and anterior proportion. According to the specificity and sensitivity test, Bolton Freeware has an improved ability to detect true negatives, i.e. the presence of discrepancy. The Bolton analysis digitally performed was faster, with an average difference of time consumed to perform the analysis of Bolton between the two methods of approximately 6 minutes. Most experts interviewed (93%) approved the usability of the software

Elaboração de ferramenta computacional para aprendizado da anatomia do pescoço

The teaching-learning process requires a constant search on the part of educators for didatic innovations aimed at improving learning. Among these are technological innovations our students are familiar with. In human anatomy teaching, these innovations are increasingly important, since the need for “mechanizing” many structures may make learning tiresome and nonstimulating for students. The search for new technologies may make this process simpler. Another important issue is the need to constantly emphasize applying the knowledge in question, in order for students to better understand the meaning of learning. Accordingly, this project aims to develop an interactive tablet application for neck anatomy. This application will function as a guide to dissection, containing text, photographs, drawings and videos, distributed systematically, with a script emphasizing the clinical and surgical importance of neck anatomy.

Reflexões metodológicas sobre prevalência da fluorose dentária nos inquéritos de saúde bucal

OBJETIVO: Analizar limitaciones del estudio de fluorosis dentaria en pesquisas transversales. MÉTODOS: Se utilizaron datos de estudios de de Condiciones de Salud Bucal de la Población Brasileña (SBBrasil 2003) y de la Investigación Nacional de la Salud Bucal (SBBrasil 2010). La estimativa de tendencia epidemiológica de la fluorosis en la población de 12 años, aspectos de la confiabilidad de los datos, así como la precisión de las estimativas, fueron evaluadas en estas dos investigaciones. La distribución de la prevalencia de la fluorosis fue hecha de acuerdo con los dominios de estudio (capitales y regiones) y el año estudiado. Se expresaron también los intervalos de confianza (IC95%) para la prevalencia simple (sin considerar las fases de la gravedad). RESULTADOS: La prevalencia de la fluorosis dentaria presentó una variación considerable, de 0 a 61% en 2003 y de 0 a 59% en 2010. Se observaron inconsistencias en los datos en términos individuales (por año y por dominio) y en el comportamiento de la tendencia. Considerando la expectativa de prevalencia y los datos disponibles en las dos investigaciones, el tamaño mínimo de la muestra debería ser de 1.500 individuos para obtener intervalos de 3,4% y 6,6% de confianza, considerando un coeficiente de variación mínimo de 15%. Dada la subjetividad en la naturaleza de su clasificación, exámenes de fluorosis dentaria pueden presentar más variación de los realizados para otras condiciones de salud bucal. El poder para establecer diferencias entre los dominios del estudio con la muestra de SBBrasil 2010 es bastante limitado. CONCLUSIONES: No fue posible analizar la tendencia de la fluorosis dentaria en Brasil con base en los estudios de 2003 y 2010; esos datos son sólo indicadores exploratorios de la prevalencia de la fluorosis. La comparación se hace imposible por el hecho de haber sido utilizado modelos de análisis diferentes en las dos pesquisas. La investigación de la fluorosis dentaria en pesquisas de base poblacional no es viable técnica y económicamente, la realización de estudios epidemiológicos localizados con plan de muestreo es más adecuada.

Projeto SB Brasil 2010 - pesquisa nacional de saúde bucal revela importante redução da cárie dentária no país

O Projeto SB Brasil 2010, planejado e executado por órgãos do SUS, nos âmbitos federal, estadual e municipal, e de universidades brasileiras, por meio de Centros Colaboradores do Ministério da Saúde se constitui em recurso de valor estratégico para aprofundar os conhecimentos sobre os agravos bucais no país, e dá contribuição inestimável para orientar os rumos da PNSB e avançar na construção de um modelo de atenção pautado na Vigilância à Saúde

Projeto SB Brasil 2010 - pesquisa nacional de saúde bucal revela importante redução da cárie dentária no país

O Projeto SB Brasil 2010, planejado e executado por órgãos do SUS, nos âmbitos federal, estadual e municipal, e de universidades brasileiras, por meio de Centros Colaboradores do Ministério da Saúde se constitui em recurso de valor estratégico para aprofundar os conhecimentos sobre os agravos bucais no país, e dá contribuição inestimável para orientar os rumos da PNSB e avançar na construção de um modelo de atenção pautado na Vigilância à Saúde

Procedimentos legais e protocolos sobre a sistemática de aquisição de cadáveres na Universidade Federal do Rio Grande do Norte para o ensino de anatomia humana

A disponibilidade de cadáveres para estudo e pesquisa vinha sendo feita tradicionalmenteutilizando-se corpos não reclamados sem grandes formalidades. Com a complexidadejurídica, social, ética e moral dos tempos atuais, o simples encaminhamento dessescorpos ao Departamento de Morfologia da Universidade Federal do Rio Grande do Norte,passou a ser temido com o receio de transgredir a legislação penal. Isso desencadeouuma redução no número de cadáveres para as aulas práticas de Anatomia. Essarealidade levou o Departamento de Morfologia da Universidade Federal do Rio Grande doNorte a pesquisar mecanismos legais que solucionassem a escassez de cadáveres parao estudo e pesquisa. A metodologia utilizada constou de reuniões de discussão eapresentação de protocolos de aquisição de cadáveres com base na legislação vigente.Os resultados obtidos foram: (1) Publicação do provimento 093/2012 da CorregedoriaGeral da Justiça do Tribunal de Justiça do Estado do Rio Grande do Norte, que dispõesobre o registro de óbito dos cadáveres destinados às escolas de Medicina para fins deensino e pesquisa; (2) Elaboração de protocolos para aquisição de cadáveres nãoreclamados junto às instituições; (3) Programa de doadores voluntários na UniversidadeFederal do Rio Grande do Norte.Por fim, concluímos que o conhecimento das atribuiçõespor parte das instituições públicas e privada, bem como o programa de doação voluntáriaaumentaram a oferta de cadáveres para o ensino da Anatomia Humana na UniversidadeFederal do Rio Grande do Norte.

Incidência de cárie dentária em adolescentes em município do Nordeste brasileiro, 2006

NORO, Luiz Roberto Augusto et al. Incidência de cárie dentária em adolescentes em município do Nordeste brasileiro, 2006, Cadernos de Saúde Pública, Rio de Janeiro, v. 25, n. 4, p. 783-790, abr. 2009.