상아질 접착제에 함유된 용매의 종류에 따른 접착능에 관한 연구
A study on the adaptability of dentin adhesives according to types of involved solvents
박일윤, 고근호, 김수관,
소속 상세정보
박일윤 ( ) - 조선대학교 치과대학 보존학교실
고근호 ( ) - 조선대학교 치과대학 보존학교실
김수관 ( ) - 조선대학교 치과대학 보존학교실
KMID : 0353320020260010081
Abstract
The purpose of this study was to compare the adaptability of two one-bottle adhesives which involve acetone or ethanol as a solvent. Class V cavity preparations with occlusal margins in enamel and gingival margins in dentin were prepared on buccal surfaces of 20 extracted human molar teeth. Prepared teeth were randomly divided in to two groups (n=20). Each group was restored with Prime&Bond NT/Esthet․ㆍX (Dentsply/Caulk, U.S.A.) and Single Bond/ Filtek Z-250 (3M Dental Products, U.S.A.), respectively.
Samples were invested in plastic bottle which was filled plaster and stored in room temperature water for 24 hours, thermocycled, sectioned into halves buccolingually. Resin surfaces and tooth substances around resin restorations were treated with 10% phosphoric acid for 5 seconds, stored in 5% NaOCL solution for 24 hours, dried and gold coated. Enamel and dentin-resin interfaces were inspected under SEM.
The results of this study were as follows;
1. Adaptibility to enamel of Prime&Bond NT and Single Bond was excellent.
2. Adaptibility to dentin was good in Single Bond group which was formed hybride layer and showed close adhesion, but was not good in Prime&Bond NT group which was formed gaps on the interfaces of composite-adhesive and dentin-adhesive.
3. Ethanol-involving adhesive was better adhesion to dentin than acetone-involving adhesive.
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