Influence of concentration, time and method of application of citric acid and sodium citrate in root conditioning.
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Data
2012-05-01
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Coorientador
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Resumo
The aim of this study was to establish the parameters of concentration, time and mode of application of citric acid and sodium citrate in relation to root conditioning. A total of 495 samples were obtained and equally distributed among 11 groups (5 for testing different concentrations of citric acid, 5 for testing different concentrations of sodium citrate and 1 control group). After laboratorial processing, the samples were analyzed under scanning electron microscopy. A previously calibrated and blind examiner evaluated micrographs of the samples. Non-parametric statistical analysis was performed to analyze the data obtained. Brushing 25% citric acid for 3 min, promoted greater exposure of collagen fibers in comparison with the brushing of 1% citric acid for 1 minute and its topical application at 1% for 3 min. Sodium citrate exposed collagen fibers in a few number of samples. Despite the lack of statistical significance, better results for collagen exposure were obtained with brushing application of 25% citric acid for 3 min than with other application parameter. Sodium citrate produced a few number of samples with collagen exposure, so it is not indicated for root conditioning.
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Palavras-chave
chelating agent , citrate sodium , citric acid , collagen , dental acid etching , dental surgery , drug effect , human , instrumentation , methodology , scanning electron microscopy , time , tooth root , Acid Etching, Dental , Chelating Agents , Citrates , Citric Acid , Collagen , Dental Cavity Preparation , Humans , Microscopy, Electron, Scanning , Smear Layer , Time Factors , Tooth Root
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Inglês
Como citar
Journal of applied oral science : revista FOB, v. 20, n. 3, p. 376-383, 2012.