The korean journal of orthodontics (대한치과교정학회지)
- Volume 30 Issue 5 Serial No. 82
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- Pages.625-642
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- 2000
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- 2234-7518(pISSN)
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- 2005-372X(eISSN)
Effects of Thermal and Mechanical Fatigue Stress on Bond Strength in Bracket Base Configurations
열적, 기계적 피로응력이 교정용 브라켓의 결합강도에 미치는 영향
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Kim, Jong-Ghee
(Department of Orthodontics, School of Dentistry, Chonbuk National University) ;
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Kim, Sang-Cheol
(Department of Orthodontics, College of Dentistry, Wonkwang University)
- Published : 2000.10.01
Abstract
The purpose of this study is to evaluate the effects of mechanical and thermal fatigue stress on the shear, tensile and shear-tensile combined bond strengths(SBS, TBS, CBS) in various orthodontic brackets bonded to human premolars with chemically cured adhesive(Ortho-one, Bisco, USA). Five types of commercially available metal brackets with various bracket base configurations of Photoetched base(Tomy, Japan), Non-Etched Foil Mesh base(Dentaurum, Germany), Micro-Etched Foil Mesh base(Ortho Organizers, USA), Chessboard base(Daesung, Korea), and Integral base(3M Unitek, USA) were used. Samples were divided into 3 groups, the first group was acted with shear-tensile combined loads(
본 연구는 열적 및 기계적 피로응력이 교정용 브라켓의 전단결합강도, 인장결합강도, 전단-인장 복합 결합강도에 미치는 영향과 결합상태에 미치는 영향, 그리고 접착파절 양상을 비교하는데 목적이 있다. 이를 위하여 기저부 형태가 다른 5종의 금속 브라켓을 교정치료를 목적으로 발거한 상