In vitro study on microleakage of three adhesive materials
- VernacularTitle:三种黏接材料的体外微渗漏研究
- Author:
rui-qing, ZHOU
;
li-ping, JIANG
;
jia-sheng, QIAN
;
jin-liang, ZHANG
- Publication Type:Journal Article
- Keywords:
microleakage;
thermocycling test;
adhesives;
in vitro
- From:Journal of Shanghai Jiaotong University(Medical Science)
2006;0(10):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the influence of self-etch adhesive,total-etch adhesive and glass ionomer cement on the marginal microleakage of class II restorations. Methods Thirty human premolars were randomly divided into 3 groups(n=10),and cuboid class II cavities(4.0 mm?3.5 mm?2.5 mm) were prepared.Restoration was performed using self-etch adhesive+nano-resin(self-etch group),total-etch adhesive + nano-resin(total-etch group) or glass ionomer cement(glass ionomer group).Half of each group underwent 200 thermocyclings and the other half underwent 500 thermocyclings.The specimens were immersed in 0.5% basic fuchsin for staining.Each tooth was then evaluated the microleakage at the axial wall and the gingival wall section by section under a stereomicroscope.The data were statistically analyzed. ResultsSelf-etch group had significantly more miroleakage than total-etch group and glass ionomer group after 200 and 500 thermocyclings(P
