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Type: Artigo de periódico
Title: Effect Of Different Mouthrinses On Knoop Hardness Of A Restorative Composite.
Author: Cavalcanti, Andrea Nóbrega
Mitsui, Fabio Hiroyuki Ogata
Ambrosano, Glaucia Maria Bovi
Mathias, Paula
Marchi, Gisell Maria
Abstract: To evaluate the effect of mouthrinses on Knoop hardness number (KHN) of a restorative composite, at different exposure times. 50 composite specimens (TPH Spectrum) were randomly allocated into five groups (n=10): distilled water; Listerine; Reach; Plax and Periogard. The samples were immersed daily for 14 days in 20 ml of the respective solution for 2 minutes twice a day (with a 12-hour interval between exposures). Measurements were carried out at four different times: 1 hour after sample preparation, 1, 7 and 14 days after the first immersion in the solutions. Statistical analyses (Repeated Measures ANOVA and Tukey test at 0.05 significance level) showed significant differences among KHN of t wo experimental groups (mean values): Listerine (49.17) and Plax (51.14). There was n ointeraction between products and time, although the highest means were registered 24 hours after the first immersion for all tested groups.
Subject: Acrylic Resins
Composite Resins
Hardness Tests
Time Factors
Rights: fechado
Identifier DOI: 
Date Issue: 2005
Appears in Collections:Unicamp - Artigos e Outros Documentos

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