RESUMO
Background and Objective: Although medical pulse oximeters are considered effective for endodontic diagnoses, the method remains uncommon in current dental practice. The aim of the present scoping review was to investigate clinical factors that exert a negative impact on the use of pulse oximeters in dental practice. Methods: This study followed the PRISMA-ScR guidelines and the protocol was prospectively registered in the Open Science Framework (https://doi.org/10.17605/OSF.IO/3GQCE). A comprehensive search of the MEDLINE (via PubMed), Cochrane Library, and Web of Science databases was performed in December 2022 for articles published in English or Spanish. All types of clinical studies were included, except comments, letters to the editor, and abstracts. Two independent investigators analyzed 45 full-text articles. Data extraction included general characteristics, oxygen saturation levels, and limiting factors/barriers to the use of oximeters as pulp testers. Results: The search of the databases yielded 1,300 records and 38 were included (quantitative data extraction was performed for 35 and three articles were systematic reviews). Publications were highest in number between 2016 and 2017, with an evident reduction occurring after 2021. The oxygen saturation level for sound/vital maxillary anterior teeth was 84.99% (overall mean). The main limiting factors/barriers were i) the difficulty in maintaining the two light-emitting diodes parallel during pulp tests, ii) infrared light diffraction by enamel/dentin/gingiva, and iii) the diversity of patient ages in studies. Conclusion: This scoping review encountered noteworthy findings associated with the impracticability of using medical pulse oximeters as dental pulp testers. The recent decrease in the frequency of published studies compared to approximately seven years ago may imply a negative trend in the use of the method.
RESUMO
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)
