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대한치과교정학회지 = The Korean journal of orthodontics v.37 no.5, 2007년, pp.376 - 385   피인용횟수: 1

인산칼슘재 브라켓과 강선사이의 마찰저항에 관한 연구
Friction of calcium phosphate brackets to stainless steel wire

주효진    (Department of Orthodontics, School of Dentistry, Kyunghee University   ); 박영국    (Department of Orthodontics, School of Dentistry, Kyunghee University  );
  • 초록

    고정성 장치를 이용한 교정 치료는 심미적 개선이 주목적 중 하나이나, 금속재 브라켓은 치료기간 동안 비심미적으로 보이는 단점이 있다. 이러한 이유로 치아색과 유사한 심미적 브라켓이 선호되었으나 호선과의 마찰저항이 금속재 브라켓보다 큰 것으로 알려져 있다. 본 연구는 최근 개발된 심미적 브라켓의 일종인 인산칼슘재 브라켓의 마찰저항을 측정하고 기존 금속재 브라켓과 금속슬롯 삽입형 도재 브라켓과의 마찰저항의 차이를 구명(究明)해 보고자 하였다. 실험군으로서 인산칼슘 재질의 Hyaline II (Tomy, Tokyo, Japan) 브라켓을, 대조군으로서 metal slot이 삽입된 도자기 재질인 Clarity (3M Unitek, Monrovia, CA, USA) 브라켓과 스테인레스 스틸 금속재 브라켓인 Kosaka (Tomy, Tokyo, Japan) 브라켓을 사용하고, $0.019\;{\times}\;0.025$ 인치 스테인레스 스틸 강선 (3M Unitek, Monrovia, CA, USA)을 이용하며 결찰재는 합성고무링 (Ormco, Glendora, CA, USA)을 사용하였다. 치아의 생리학적 환경을 재현하기 위해 모의 생물학적 모형을 고안하였으며 이에 강선을 삽입하여 load cell (Push & pull gauge, RX-2 AIKOH, Osaka, Japan)로 분당 5 mm로 견인하며 만능시험기(Instron4467, Instron, Norwood, MA, USA)로 마찰저항을 측정하였다. 실험결과, 실험군인 인산칼슘 재질 브라켓의 마찰저항은 대조군인 금속슬롯 삽입형 도재 브라켓 보다 작고 (p


    Esthetic brackets which resemble the color of natural teeth have been widely used. But the frictional resistance of ceramic brackets, a typical esthetic bracket, is greater than that of metal brackets. The purpose of this study was to measure the frictional resistance of the new calcium phosphate brackets (CPB) which were recently developed and to evaluate its clinical usability by comparing the frictional differences of CPB with metal brackets and metal slot inserted ceramic brackets. Methods: Experimental groups were CPB (Hyaline II, Tomy, Tokyo, Japan), metal bracket (Kosaka, Tomy, Tokyo, Japan) and metal slot inserted ceramic bracket (Clarity, 3M Unitek, Monrovia, CA, USA). All of the brackets had 0.022-inch slot sizes. The brackets were tested with $0.019\;{\times}\;0.025$ inch stainless steel wire (3M Unitek, Monrovia, CA, USA). A biologic model was used to simulate the situation which would occur during orthodontic treatment with fixed appliances. Retraction force was applied at a speed of 5 mm/min for 30 seconds. The frictional resistance was measured on a universal testing machine (Instron 4467, Instron, Norwood, MA, USA). Results: CPB showed significantly higher friction than metal brackets (p


  • 주제어

    마찰저항 .   인산칼슘재 브라켓 .   모의 생물학적 모형.  

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  • 이 논문을 인용한 문헌 (1)

    1. Park, Jea-Beom ; Yoo, Ji-A ; Mo, Sung-Seo ; Choi, Kwang-Cheol ; Kim, Yoon-Ji ; Han, Seong-Ho ; Kook, Yoon-Ah 2011. "Effect of friction from differing vertical bracket placement on the force and moment of NiTi wires" 대한치과교정학회지 = The Korean journal of orthodontics, 41(5): 337~345     

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  • 박영국 (48)

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    2. 1988 "상악중절치에 만곡치근을 가진 환자의 교정치료에 대한 치험예" 大韓齒科醫師協會誌 = The journal of the Korean dental association 26 (12): 1131~1135    
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