Comparison of three adhesives'microtensile bond strength in the recovery of vertical tooth fracture in vitro
10.3969/j.issn.1001-3733.2015.04.02
- VernacularTitle:3种粘接剂在离体后牙纵折粘接修复中的微拉伸强度的比较
- Author:
Qin HE
;
Huaili CHEN
;
Jing ZHAO
;
Wenmei WANG
- Publication Type:Journal Article
- Keywords:
Vertical tooth fracture;
Adhesive;
Microtensile bond strength;
Fracture mode
- From:
Journal of Practical Stomatology
2015;(4):460-463
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To compare the bonding strength of 3M Adper Easy One(3AEO),Clearfil S3 Bond(CSB)and Super-Bond C&B(SBCB)in vertical tooth fracture mode.Methods:30 freshly extracted human molars were randomly assigned to three groups(n =10).The teeth were cut along the long axis with low speed cutting machine and were prepared into a unified model of the vertical tooth fracture.The three adhesives were respectively used to adjoin the surface of the fractured teeth.The samples were subjected to thermal cycling for 500 cycles,stored in distilled water at 37 ℃ for 24 h.Then the pillar-like specimens with the bonding area of 1.0 mm × 1.0 mm were prepared.The microtensile bond strength was measured and the fracture mode was observed.Results:The bond strength (MPa)of 3AEO,CSB and SBCB was 18.57 ±4.98,16.93 ±4.70 and 22.75 ±5.18 respectively(P <0.05).The fracture mode was mainly interficial failure in all groups(P >0.05).Conclusion:The surface bonding of Super-Bond C&B in tooth fracture is stronger than 3MAdper Easy One and Clearfil S3 Bond.
