대한치과교정학회지 (The korean journal of orthodontics)
- 제22권2호
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- Pages.449-474
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- 1992
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- 2234-7518(pISSN)
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- 2005-372X(eISSN)
도재 브라켓의 전단접착강도에 관한 실험적 연구
IN VITRO SHEAR BOND STRENGTH OF CERAMIC BRACKETS
- Lee, Suhng-Jin (Department of Orthodontics, College of Dentistry, Seoul National University) ;
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Chang, Young-Il
(Department of Orthodontics, College of Dentistry, Seoul National University)
- 발행 : 1992.06.01
초록
The purpose of this study was to evaluate the in vitro shear bond strengths to enamel and the failure sites of three ceramic brackets and one metal bracket in combination with light cured orthodontic adhesive. The brackets were divided into four groups. Each ceramic bracket group had different bonding mechanisms with adhesive. Group A; metal bracket with foil-mesh base (control group) Group B; ceramic bracket with micromechanical retention Group C; ceramic bracket with chemical bonding Group D; ceramic bracket with mechanical retention and chemical bonding. Forty extracted human lower first premolars were prepared for bonding and 10 brackets for each group were bonded to prepared enamel surfaces with