The effects of EGCG and EGCG-3Me on the bonding stability of dentin-adhensive to intraradicular dentin
10.3969/j.issn.1001-3733.2017.02.007
- VernacularTitle:EGCG和EGCG-3Me对根管牙本质粘接界面稳定性的作用
- Author:
Haohan YU
;
Ling ZHANG
;
Fang LI
;
Zhengya LIU
;
Yinhua LI
;
Jihua CHEN
- Keywords:
Epigallocatechin-3-gallate (EGCG);
Epigallocatechin-3-O-(3-O-methyl)-Gallate (EGCG-3 Me);
Anti-bacterial;
Degree of conversion;
Push-out bond strength;
Thermocycling
- From:
Journal of Practical Stomatology
2017;33(2):174-178
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To evaluate the effect of epigallocatechin-3-gallate (EGCG) and epigallocatechin-3-O-(3-O-methyl)-gallate (EGCG-3Me) on the anti-bacterial effect and the stability of intraradicular dentin-adhesive interface.Methods:EGCG and EGCG3Me with the concentration of 400 μg/ml were incorporated into Single Bond 2 (SB2) respectively to obtain 2 modified adhesives E-SB2 and E3-SB2.Confocal laser scanning microscopy(CLSM) and ultraviolet spectrophotometry were used to evaluate the anti-bacterial effect of the modified adhesives.Micro-Raman spectrum was used to test the degree of conversion (DC) of the adhesives.Push-out bond strength test was conducted to examine the immediate bond strength and the bond strength after themocycling.Results:E-SB2 and E3-SB2 both showed inhibiting effect on the proliferation of E.faecalis,while E3-SB2 performed stronger inhibiting effect.DC and the immediate push-out bond strength of SB2 were not decreased with the incorporation of EGCG or EGCG-3Me(P ＞ 0.05).E-SB2 and E3-SB2 showed significantly higher push-out bond strengths than that of SB2 (P ＜ 0.05) after themocycling.Conclusion:EGCG and EGCG-3Me modified adhesives have anti-bacterial effect and can enhance the stability of bonding between intraradicular dentin and adhesive,EGCG-3Me may have stronger anti-bacterial effect.
