Effects of application methods of self-etching adhesives on resin-dentin bonding
10.3321/j.issn:1002-0098.2008.07.013
- VernacularTitle:三种自酸蚀粘接剂使用方法对牙本质粘接的影响
- Author:
Ling YU
1
;
Xiao-Yan WANG
;
Fu-Cong TIAN
;
Xue-Jun GAO
Author Information
1. 首都医科大学附属北京同仁医院
- Keywords:
Acid etching,dental;
Dentin-bonding agents;
Application time
- From:
Chinese Journal of Stomatology
2008;43(7):426-428
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the effects of application time and rubbing action of self-etching adhesives on resin-dentin bond strength and interface morphology in vitro. Methods Caries-free human third molars were wet ground to expose dentin surface. Three self-etching bonding agents were applied with varying application time and with/without rubbing. The microtensile bond strength and interface morphology were evaluated. Results When etching time was shortened, normal and prolonged, the bond strength was bonding agent 1 (Adper Prompt) : (16. 30±2. 59), (23.13±2. 56), (22. 28±2. 83) Mpa, bonding agent 2 (Xeno Ⅲ) : (15. 17±6. 07), (34. 50±3.64), (24. 87±7.01) Mpa, bonding agent 3 (Clearfil SE Bond): (29. 92±3.32), (42. 21±6. 28), (41.07±3.93) Mpa. When etching was applied with and without rubbing, the bond strength was bonding agent 1 (23.13±2. 56), (12. 53±3.73) Mpa, bonding agent 2 (23.98±3.86), (34. 50±3.64) Mpa, bonding agent 3 (48. 37±4. 95), (42.21±6. 28)Mpa. Conclusions Shortening application time decreased bond strength of self-etching adhesives, while prolonging application time did not increase bond strength of self-etching adhesives. Not all self-etchingadhesives applied with rubbing showed increased bond strength to dentin, which is product-dependent. Manufactures' instructions should be followed to achieve optimum bonding.
