The Effect of Different Light Sources on Microleakage of Bleached Enamel

被引：4

作者：

Bulucu, Bilinc ^{[1
]}

Ozsezer, Ebru ^{[2
]}

Ertas, Ertan ^{[1
]}

Yuksel, Gozde ^{[1
]}

机构：

[1] Ondokuz Mayis Univ, Dept Operat Dent, Fac Dent, Samsun, Turkey

[2] Ondokuz Mayis Univ, Dept Endodont, Fac Dent, Samsun, Turkey

来源：

DENTAL MATERIALS JOURNAL | 2008年 / 27卷 / 04期

关键词：

Bleaching; Microleakage; Light curing units;

D O I：

10.4012/dmj.27.598

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

This study evaluated the immediate effects of halogen, LED (light-emitting diode), and plasma are curing units on microleakage of bleached enamel. The buccal and lingual enamel surfaces of experimental groups (n=30) were bleached with 16% carbamide peroxide for a period of 10 days, with a daily contact time of 90 minutes. Box-shaped Class V cavities were also prepared on 60 extracted molar teeth (n=30, control group). For all groups, a composite resin (Grandio) was bonded with one of the two employed adhesive systems. Single Bond 2 or Prime & Bond NT. After restoration, all specimens were thermocycled for 200 cycles between 5 degrees C and 55 degrees C with a dwell time of 60 seconds in each bath, and then exposed to a dye. In the control groups, microleakage was statistically lower than the bleached groups (p<0.01). Groups cured with QTH and PAC showed no statistical differences (p>0.05). However, groups cured with LED system showed statistically significant differences (p<0.01) in microleakage.

引用

页码：598 / 604

页数：7