Restorative Dentistry and Endodontics
- 제25권2호
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- Pages.180-192
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- 2000
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- 2234-7658(pISSN)
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- 2234-7666(eISSN)
단일용기 상아질 접착제 처리 후 레진-상아질 경계면에 대한 투과전자현미경적 연구
A TEM STUDY OF THE RESIN-DENTIN INTERDIFFUSION ZONE FORMED BY ONE-BOTTLE DENTIN ADHESIVE SYSTEMS
- Yang, Dong-Woon (Department of Conservative Dentistry, College of Dentistry, Yonsei University) ;
- Park, Seong-Ho (Department of Conservative Dentistry, College of Dentistry, Yonsei University) ;
- Lee, Chan-Young (Department of Conservative Dentistry, College of Dentistry, Yonsei University)
- 발행 : 2000.06.05
초록
One bottle system was recently developed in order to simplify the clinical skills and save chair time after continuous improvements on dentin bonding agents. There has been many studies to measure the bond strength of one bottle systems but no actual work has been done on micromorphologic study of resin-dentin interdiffusion zone after one bottle system application. To evaluate the bonding patterns of various commercially available one bottle systems to dentin, observation of resin-dentin interdiffusion zone under TEM was performed. Caries-free human third molars within one month of extractions were chosen for the experiments. The molars were sectioned 1mm above the cementoenamel junction and got rid of the root portions. Crown portions of the teeth were sectioned parallel to occlusal surface so that dentin discs of 1mm in thickness were remained. 7 one bottle systems and 1 two bottle system were applied according to manufacturer's instructions and followings were the results. 1. In every experimental groups, cross bandings of collagen fiber were distinguishable and tight bon dings between the bonding agents and dentin were observed. 2. Hybrid layer was clearly observed in ONE-STEP