Impacto do uso de probióticos sobre o biofilme bucal / Impact of the use of probiotics on oral biofilme

Objetivo: o objetivo desse estudo foi realizar uma revisão integrativa sobre o impacto do uso de probióticos sobre o biofilme bucal. Revisão de literatura: a busca foi feita nas bases de dados Scielo, Science Direct, PubMed e LILACS, utilizando-se como descritores os termos probióticos, biofilme, cárie e periodontite, nos idiomas português e inglês. Foram selecionados os estudos que delimitavam o assunto em relação ao biofilme bucal. Foram encontrados 1689 artigos e selecionados 48. Os resultados demonstraram empregabilidade otimista dos probióticos, visto que apenas 2 artigos selecionados não obtiveram resultados positivos. Dentre as bactérias probióticas, a Lactobacillus salivarius e a Lactobacillus casei foram as mais utilizadas. Sugerem-se produtos viscosos como meio de utilização, por sua boa substantividade. Considerações finais: Recomenda-se que sejam realizados mais estudos com metodologias comparáveis, para melhor compreensão do efeito dos probióticos no biofilme bucal e para que sejam padronizadas doses, modo de administração, tempo da duração do seu efeito, bem como as cepas e as espécies bacterianas mais eficazes para cada objetivo. Principalmente, compreender melhor o seu mecanismo de ação para que assim possa ser protocolada uma técnica eficiente, fundamentada e segura para sua aplicação.

Objectives: to carry out an integrative review on the impact of the use of probiotics on oral biofilm. Materials and method: the search was done in the databases SciELO, Science Direct, PubMed and LILACS, using the terms probiotics, biofilm, caries and periodontitis, in Portuguese and English. The studies selected were those that delimited the subject in relation to the oral biofilm. Results: a total of 1.689 articles were found and 48 were selected. The results demonstrated optimum employability of probiotics, since only two of the selected articles did not obtain positive results. Among the probiotic bacteria, Lactobacillus salivarius and Lactobacillus casei were the most used. Viscous products are suggested as a means of use because of their good substantivity. Final considerations: it is recommended that further studies be conducted with comparable methodologies to better understand the effect of probiotics on oral biofilm and to standardize doses, mode of administration, duration of their effect, as well as the most effective strains and bacterial species for each objective. Mainly, it is necessary a better understanding of the mechanism of action, so that an efficient, reasoned and safe technique can be defined for its application.(AU)

Knowledge of undergraduates in dentistry about tooth brushing techniques

AIM: This cross-sectional study aimed to determine whether undergraduates in dentistry identify correctly the Bass, Scrub, Modified Stillman, Chartes, Roll and Fones brushing techniques, as well as determine which techniques are more properly identified and which have a lower rate of recognition. MATERIAL AND METHODS: The sample consisted of undergraduates of the 9th and 10th periods over the year of 2010/02 and the 9th period of the 2011/01 year of the Dentistry course of Higher Education Institution (HEI), who answered a questionnaire on a sequence of videos about tooth brushing. The collected data were tabulated in Microsoft Excel™ spreadsheet and subsequently analyzed using descriptive statistics. RESULTS: When evaluating all the techniques, the number of all hits had a percentage 61%, before a frequency of 39% errors. CONCLUSION: Even with the higher percentage of accuracy that the error, it is possible conclude that there is a need for strengthening the control and evaluation functions on recognition of tooth brushing techniques by dentistry undergraduate students of the HEI.