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서지반출
수종의 Bracket제거방법에 따른 법랑질 표면에 대한 주사전자현미경적 연구
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  • 수종의 Bracket제거방법에 따른 법랑질 표면에 대한 주사전자현미경적 연구
  • Enamel surface evaluation on various removal technique of bracket (DBS): a study with the scanning electron microscopy
저자명
송정국(Jung-Kook Song),손병화(Byung-Hwa Sohn)
간행물명
The Korean Journal of OrthodonticsKCI,SCIE,SCOPUS
권/호정보
1985년|15권 2호|pp.271-277 (7 pages)
발행정보
대한치과교정학회|한국
파일정보
정기간행물|KOR|
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영문초록

With modification of the acid etch technique and improvements of the physical and mechanical properties of the acrylic reain, the removal of directly bonded attachments and the finishing of the underlying enamel have become an acute clinical problem. This study was to evaluation the efficacy of recently introduced instrumentation and techniques to remove bonded brackets and residual resin, and restore the affected enamel surface to an acceptable clinical condition. Fortyeight premolar which were scheduled for extractio for orthodontic purposes were bonded with brackets usion super-C oftho. Four additional premolars with untreated surfaces were used as controls. After one weak the grackets were removed and the residual resin removed by hand scaler, green stone, green rubber wheel, sandpaper disc, tungsten carbide bur, Sof-lex disc. Half the experimental teeth were given a final pumicing and then all were extracted and stored in 50 percent ethanol. The scanning electron microscopy was used to evalusted the enamel surface. Following results were obtained; 1. A satisfactory result was obtained by means of the Sof-lex disc. 2. The order of the scratch formation was the procedure using hand scaler, green stone, tungsten carbide bur, sandpaper disc, green rubber wheel, and Sof-lex disc. 3. The procedures using green stone and tungsten carbide bur showed many groove formations and the other procedures showed none. 4. Final pumicing serves effectively to remove residual adhesive and restore the enamel surface.