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
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
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页码:598 / 604
页数:7
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