不同含漱液对修复性复合材料努氏硬度的影响。

Effect of different mouthrinses on Knoop hardness of a restorative composite.

作者信息

Cavalcanti Andrea Nóbrega, Mitsui Fabio Hiroyuki Ogata, Ambrosano Glaucia Maria Bovi, Mathias Paula, Marchi Gisell Maria

机构信息

Department of Restorative Dentistry, Piracicaba School of Dentistry, UNICAMP, SP, Brazil.

出版信息

Am J Dent. 2005 Dec;18(6):338-40.

PMID:16433403

Abstract

PURPOSE

To evaluate the effect of mouthrinses on Knoop hardness number (KHN) of a restorative composite, at different exposure times.

METHODS

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.

RESULTS

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.

摘要

目的

评估在不同暴露时间下，漱口水对一种复合树脂修复材料努氏硬度值（KHN）的影响。

方法

50个复合树脂样本（TPH Spectrum）被随机分为五组（n = 10）：蒸馏水组；李施德林漱口水组；Reach漱口水组；Plax漱口水组和Periogard漱口水组。样本每天浸泡在20毫升相应溶液中两次，每次2分钟（两次浸泡间隔12小时），持续14天。在四个不同时间进行测量：样本制备后1小时、首次浸泡溶液后1天、7天和14天。