The effect of different bonding systems on shear bond strength of repaired composite resin.
10.5395/JKACD.2008.33.2.125
- Author:
Eun Mi SEON
1
;
Hyeon Cheol KIM
;
Bock HUR
;
Jeong Kil PARK
Author Information
1. Department of Conservative Dentistry, Pusan National University, Busan, Korea. jeongkil@pusan.ac.kr
- Publication Type:Original Article
- Keywords:
Composite repair;
Aluminum oxide sandblasting;
Bonding system;
Shear bond strength
- MeSH:
Adhesives;
Aged;
Aluminum Oxide;
Fungi;
Humans;
Resin Cements
- From:Journal of Korean Academy of Conservative Dentistry
2008;33(2):125-132
- CountryRepublic of Korea
- Language:English
-
Abstract:
The purpose of this study is to compare the shear bond strength of repaired composite resin with different bonding agents and evaluate the effect of bonding agents on composite repair strength. Forty composite specimens (Z-250) were prepared and aged for 1week by thermocycling between 5 and 55degrees C with a dwell time of 30s. After air abrasion with 50 microm aluminum oxide, following different bonding agents were applied (n = 10); SB group: Scotchbond multipurpose adhesive (3 step Total-Etch system); SE group: Clearfil SE bond (2 step Self-Etch system); XP group: XP bond (2 step Total-Etch system); XE group: XenoIII (1 step Self-Etch system). After bonding procedure was completed, new composite resin (Z-250) was applied to the mold and cured. For control group, 10 specimens were prepared. Seven days after repair, shear bond strength was measured. Data was statistically analyzed using one-way ANOVA and Tukey's test (p < 0.05). The means and standard deviations of shear bond strength (MPa +/- S.D.) per group were as follows: SB group: 17.06; SE group: 19.10; XP group: 14.44; XE group: 13.57; Control Group: 19.40. No significant difference found in each group. Within the limit of this study, it was concluded that the different type of bonding system was not affect on the shear bond strength of repaired composite resin.
