Hajizadeh Hila, Ameri Hamideh, Eslami Samaneh, Mirzaeepoor Behnam
Department of Operative Dentistry, Dental Material Research Centre, Mashhad University of Medical Sciences, Mashhad, Iran.
J Conserv Dent. 2013 Jan;16(1):17-20. doi: 10.4103/0972-0707.105292.
This experimental study was designed to focus on the effects of bleaching on toothbrush abrasion in three types of composites with different filler size.
Forty eight disks were prepared from three types of composite and divided into 6 groups. In the first three groups the abrasion test was done. The remaining groups were bleached and the abrasion test was performed. The weight of the samples before and after abrasion was measured. Statistical analysis was done with one-way ANOVA and Duncan test.
There was a significant difference in abrasion of composites with different filler size (P < 0.05). The most amount of abrasion was observed in Z100 after being bleached. An increase in abrasion was noticed in all three types of tested composite after bleaching.
According to the findings, it is suggested to use a nano filled resin composite for restoration if the bleaching treatment is required.
本实验研究旨在关注漂白对三种不同填料粒度的复合材料牙刷磨损的影响。
用三种复合材料制备48个圆盘,并分为6组。前三组进行磨损试验。其余组进行漂白,然后进行磨损试验。测量样品磨损前后的重量。采用单因素方差分析和邓肯检验进行统计分析。
不同填料粒度的复合材料磨损存在显著差异(P < 0.05)。漂白后,Z100的磨损量最大。所有三种测试复合材料漂白后磨损均增加。
根据研究结果,建议如果需要进行漂白处理,应使用纳米填料树脂复合材料进行修复。