北京大学学报（医学版）Issue(3)：474-477,4.DOI:10.3969/j.issn.1671-167X.2014.03.026
乳牙应用 Er：YAG 激光备洞充填微渗漏效果的离体研究
Marginal microleakage of cavities prepared with Er:YAG laser on primary teeth in vitro
谢窈 1张笋 2葛立宏2
作者信息
- 1. 北京大学口腔医院门诊部牙体牙髓科，北京 100034
- 2. 北京大学口腔医院儿童口腔科，北京 100081
- 折叠
摘要
Abstract
Objective:To investigate the marginal microleakage after cavity preparation by Er:YAG la-ser and conventional bur applying different adhesive systems , conditioning surface with acid etching or not.Methods:In the study, 50 primary teeth were divided into 5 groups.(1) Bur+etch-and-rinse sys-tem, (2) Bur+self-etching system, (3) Er:YAG laser+etch-and-rinse system, (4) Er:YAG laser+self-etching system, (5) Er:YAG laser+none-etched.The class V cavities were all filled with composite resin.The microleakage tests were performed , observed and scored under stereomicroscope .Results:Bur+etch-and-rinse group had higher microleakage than Er:YAG laser +etch-and-rinse group , and Bur+self-etching group had higher microleakage than Er:YAG laser +self-etching group ( P<0 .05 ) . There was no difference between Er:YAG laser+etch-and-rinse group and Er:YAG laser+self-etching group, while they had significantly lower microleakage than that of Er:YAG+none-etched group.Con-clusion:Composite resin restoration showed less marginal microleakage when all-in-one self-etch system was used after irradiation by Er:YAG laser on primary teeth .关键词
激光疗法/牙窝洞制备/微渗漏/牙/乳Key words
Laser therapy/Dental cavity preparation/Dental microleakage/Tooth/deciduous分类
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谢窈,张笋,葛立宏..乳牙应用 Er：YAG 激光备洞充填微渗漏效果的离体研究[J].北京大学学报（医学版）,2014,(3):474-477,4.
