Journal of the Korean Academy of Pediatric Dentistry 2013;40(4):283-295.
Published online November 30, 2013.
The Effect of Aging Treatment for Microleakage within Composite Resin Restoration
Seunghoon Yoo
Department of Pediatric Dentistry, School of Dentistry, Dankook University 
Correspondence:  Seunghoon Yoo,  Tel: +82-41-550-0222, Fax: +82-41-550-0118, Email: yoo.seunghoon@gmail.com
Received: 28 October 2013   • Accepted: 6 November 2013
Abstract
In this study, researchers tried to find the effect, if any, of aging treatment to the specimens with three different dentin bonding agents using MicroCT. One, 5th generation - [AdperTM Single bond Plus] and two 6th generation [AdheSE®, AdperTM PromptTM L-PopTM] dentin bonding agents were used in this study. Specimens were divided into 4 groups according to aging treatment method used. Group I : control group, Group II : thermocycled between 5℃ and 55℃ for 60 seconds dwell time 5,000 times, Group III : aged as Group II and artificially brushed 20,000 times, Group IV : aged as Group III and were stored in artificial saliva for 6 months. With Single bond Plus, Group II showed more microleakage than Group I (p < 0.05). Group II and Group III showed more microleakage than Group IV (p < 0.05). There were no statistically significant differences among the groups using AdheSE® and PromptTM L-PopTM (p > 0.05). Among Group I, AdheSE® showed more microleakage than Single bond Plus and PromptTM L-PopTM (p < 0.05). Among Group II, there were no statistically significant differences (p > 0.05). Among Group III, AdheSE® showed more microleakage than Single bond Plus and PromptTM L-PopTM (p < 0.05). Among Group IV, AdheSE® and PromptTM L-PopTM showed more microleakage than Single bond Plus (p < 0.05).
Key Words: Microleakage, Dentin bonding agent, Aging treatment, MicroCT, Composite resin


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