RESUMO DESCRIPTORS DESCRITORESSaliva; Índice CPO-D; Cárie dentária. Saliva; DMF Index; Dental caries. Flow Rate and Buffering Capacity of the Saliva as Indicators of the Susceptibility to Caries DiseaseObjective: To correlate salivary indices with the DMFT/dmft index, which is an indicator of caries prevalence, and the adoption of educational measures for oral health promotion. Method: Saliva samples were collected from 56 children of both genders (28 girls and 28 boys), aged 5 to 7 years at the Santana de Itatiaia Municipal School. Prior to saliva collection, the research project was explained to the parents and/or guardians and their written consent was obtained for enrolment of the children in the study. Saliva was collected by masticatory stimulation. Thereafter, the volume of saliva was recorded by the operator and the salivary flow rate was calculated (mL/5 min) for each participant. The buffering capacity of the saliva of each sample was determined by titration, measuring the volume of 0.1 N lactic acid required for decreasing the salivary pH from 6.9 to 3.7.Results: Among the studied children, 23% presented a salivary flow rate below the mean value. In 62% of the children, the values of the buffering capacity of the saliva classified them as susceptible to caries disease. In the present study, there was a moderate correlation (p=0.79) between the buffering capacity of the saliva and DMFT/dmft, confirming the complex etiology of the caries disease. Conclusion: Flow rate and buffering capacity of saliva should be analyzed together with other factors for determining the cariogenic potential. The findings of this study indicate the need of intervening in order to promote of educational measures of prevention and health promotion. Objetivo: Correlacionar índices salivares com o índice CPO-D/ ceo-d que é indicativo da prevalência da cárie e a adoção de práticas educativas para promoção de saúde bucal.Método: A coleta da saliva foi realizada na Escola Municipal Santana de Itatiaia em crianças de ambos os sexos (28 do sexo feminino e 28 do sexo masculino) com idade variando entre 5 e 7 anos, totalizando 56 participantes. Para a realização da coleta foi realizada uma reunião com os pais e/ou responsáveis pela crianças para esclarecimento do projeto e autorização da participação das crianças. A saliva foi coletada por estímulo pela mastigação. Após esse procedimento, o operador anotou o volume de saliva formada e para cada participante foi calculado o fluxo salivar (ml/5min). A capacidade tampão da saliva de cada amostra foi determinada por Titulometria, medindo-se o volume de ácido lático 0,1 N necessário para abaixar o pH salivar de 6,9 ao pH de 3,7.

Objective: to investigate the antimicrobial activity and biocompatibility of the calcium hydroxide [Ca(OH)2] + propylene glycol (PG) + aloe vera (AV) paste in comparison with other pastes used as intracanal medication. Material and Methods: there was evaluated 3 intracanal medication based on calcium hydroxide and propylene glycol, varying only the third component. In group 1, the third component was camphorated paramonochlorophenol (CPMC); in group II, chlorhexidine (CHX); and in group III, aloe vera. The antimicrobial activity was analyzed through the direct contact of the intracanal medication pastes with strains of Enterococcus faecalis; Kocuria rhizophila; Pseudomonas aeruginosa and Candida albicans. The biocompatibility was evaluated in subcutaneous tissue of rats during experimental 7, 21 and 63 days. Results: it was observed that the Group II showed the best results regarding antimicrobial activity, followed by group III and I. The Ca(OH)2 + PG + AV paste was considered biocompatible since it presented discrete fibrosis and suggestive histological characteristics of normal healing after 63 days, approaching the control group. Conclusion: the association of Ca (OH)2 + PG + AV showed antibacterial activity and adequate biocompatibility when compared with commonly pastes used as intracanal medication.