Journal of the Korean Academy of Pediatric Dentistry 2006;33(4):661-672.
Published online November 30, 2006.
STUDY ON THE SHEAR BOND STRENGTH OF ALL-IN-ONE DENTIN BONDING SYSTEM
단국대학교 치과대학 소아치과학교실 
우치에 대한 All-in-one 상아질 결합제의 전단결합강도 비교 연구
박형주, 유승훈, 김종수
단국대학교 치과대학 소아치과학교실
Correspondence:  , 
Abstract
This study was performed to compare the shear bond strength of AQ Bond PlusTM with AQ BondTM and Single BondTM. Also by observing the fractured interface under scanning electro-microscope, the fracture pattern and the quality of hybrid layer were analyzed. The possibility of clinical application of all-in-one system which has an advantage to reduce chair time for children with difficult behavior pattern was evaluated, The results obtained are as follows ; 1. There was no significant difference between AQ BondTM and AQ Bond PlusTM in shear bond strength and Single Bond showed the highest bond strength with statistical significant difference (p<0.05). 2. Adhesive fracture pattern was mainly observed in both enamel/dentin in AQ BondTM and AQ Bond PlusTM group while Single Bond group showed equal numbers for cohesive and adhesive pattern. 3. Under scanning electro-microscope, resin tags observed in AQ BondTM and AQ Bond PlusTM were very weak and tangled while strong and thick tags were shown with many lateral branches in Single Bond. Careful case selection and accurate clinical application is recommended when using AQ BondTM and AQ Bond PlusTMconsidering the result showing its weaker strength than Single $BondTM.
Key Words: All-in-one system, Dentin bonding system, Bovine tooth, Shear bond strength, Resin tag; Hybrid layer


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