ABSTRACT
Introduction:Dental caries is a large problem affecting all population. In Brazil, caries prevalence has decreased over the last years, but it is still a public health issue requiring frequent evaluation and care by dentists. Objective: To evaluate the oral health conditions of schoolers aged 5-12 years relating them with socioeconomic and demographic determinants. Material and methods: The children were examined by a previously calibrated examiner to obtain DMF and dmf scores. The parents answered a questionnaire regarding to the socioeconomic condition. Prior to the examinations, the parents signed a free and clarified consent form and only their children were evaluated. The results were analyzed descriptively and by Chi-square test, at significance level of p<0.05. Results: : The sample (n=111) showed a mean age of 7+1.7 years (mean + standard deviation), composed of 58 boys and 58 girls. 66.6% of the sample exhibited dmf values = 0, while 102 schoolers had DMF values = 0. With regard to the parents' education level, 78.37% of the mothers had more than 9 years of education and 43.34% of the fathers had 9 to 11 years of study. Concerning to family income, 36.93% of the families presented mean income of 1-3 minimum wages (R$ 788.00 to R$ 2,364.00). No statistically significant differences (p≤0.05) were seen between caries rates vs. parents' education and caries rates vs. family income. Conclusion: 5-12 year schoolers showed low dmf and DMF values, suggesting that parents' education and income might have influenced on the results. Further studies are necessary to understand/assess the predisposing factors to dental caries development.
ABSTRACT
Introdução: As crianças apresentam erosão dentária e cáries precoces na infância associadas a uma dieta rica em carboidratos, a qual incluia ingestão freqüente de sucos industrializados em caixa. A ingestão de bebidas com pH inferior a 5,5 pode causar erosão principalmente se o ataque for de longa duração e freqüente. A proteção natural dos dentes é a saliva, por intermédio de seu tamponamento salivar. Objetivo: Medir o pH salivar em crianças antes e após a ingestão de suco de uva (DelValle Kids). Material e métodos: Participaram do trabalho 31 crianças com idade entre 6 e 12 anos, de ambos os sexos. A variação do pH foi medida com uma fita colorimétrica. Aferiu-se o pH antes, imediatamente após a ingestão do suco, 5, 10 e 15 minutos após a ingestão. Resultados:Houve diferença estatisticamente significante entre os grupos. Observou-se uma redução imediatamente 5 e 10 minutos após a ingestão do suco em relação ao basal. No tempo imediato o valor do pH de 16 crianças foi acima de 5,5, e 15 apresentaram pH igual ou abaixo de 5,5. No tempo de 5 minutos, 3 crianças mantiveram esse pH, e após10 minutos todas as crianças apresentaram pH acima de 5,5.Conclusão: Pode-se concluir que o suco de fruta apresenta pH baixo eque após 10 minutos da ingestão do suco o pH salivar de todos os participantes tinha valor acima de 5,5, elevando-se próximo aos valores normais com o tempo de 15 minutos.
Introduction: The children presented dental erosion and caries in early infancy that were associated to a rich diet in sugars, including the frequent ingestion of industrialized fruit juice (conditioned in boxes).The drink ingestion with pH lower than 5.5 can cause teeth erosionmainly if it is associated with frequent and prolonged teeth contact.The natural protection of teeth is the saliva through its buffering capacity. Objective: Measure the children salivary pH before and after the grape fruit juice (Del Valle Kids) ingestion. Material and methods: Thirty one children with age between 6 and 12 years of both sexes participated in the study. The pH was measured with pH paper indicator. The salivary pH was measured before, immediately after, and at the 5, 10 and 15min following the ingestion of the juice. Results: There was a significant difference of the pH at different time measurement. A reduction was observed immediately, 5 and 10 minutes after juice ingestion in relation to the basal one. Immediately after fruit ingestion the pH measurementof 16 children was above 5.5 while 15 children presented a pH equalor below of 5.5. At 5 minutes, 3 children still had a pH equal or below5.5. At 10 minutes, all the children had pH above 5.5. Conclusion: It was concluded that, in children, immediately after the ingestion of fruitjuice, there is a clinically significant pH decrease, which can reduce the salivary buffer capacity, but after 10 minutes this ingestion salivarypH reached values above 5.5, raising to next to the normal values atthe time of 15 minutes.
ABSTRACT
O material MTA (Agregado de Trióxido Mineral) foi inicialmente desenvolvido para selar comunicações entre o dente e a superfície externa periodontal. Foram encontradas no MTA propriedades como a alta alcalinidade, baixa solubilidade, excelente selamento marginal, capacidade antimicrobiana, radiopacidade, estabilidade dimensional, resistência à compressão e elvada biocompatibilidade, com formação de barreira de tecido mineralizado pela polpa dentária em maior quantidade e qualidade que o hidróxido de cálcio. Diante destas características, o MTA passou a ser credenciado com um material promissor para uso em procedimentos conservadores com pulpotomias de dentes decíduos e capeamento pulpar direto e pulpotomias em dentes permanentes jovens, procedimentos usuais na odontologia infanto-juvenil. Este trabalho tem como objetivo, através de revisão da literatura, demonstrar a viabilidade da utilização do matrial MTA para os procedimentos realizados em odontopediatria e seu potencial futuro de vir a ser o material de eleição para esses procedimentos