Autor(es):
Cavassim, Rodrigo [UNESP] ; Leite, Fábio Renato Manzolli ; Zandim-Barcelos, Daniela Leal [UNESP] ; Dantas, Andréa Abi Rached [UNESP] ; Rached, Ricardo Samih Georges Abi [UNESP] ; Sampaio, José Eduardo Cezar [UNESP]
Data: 2014
Identificador Persistente: http://hdl.handle.net/11449/73305
Origem: Oasisbr
Assunto(s): 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
Descrição
Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-27T11:26:29Z No. of bitstreams: 0Bitstream added on 2014-05-27T14:42:14Z : No. of bitstreams: 1 2-s2.0-84872260281.pdf: 1080528 bytes, checksum: 55dc27aa4a7702ace417da9b20b94b11 (MD5)
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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.
