Restorative Dentistry and Endodontics
- 제5권1호
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- Pages.13-18
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- 1979
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- 2234-7658(pISSN)
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- 2234-7666(eISSN)
산부식처리(酸腐蝕處理) 치아법랑질(齒牙琺瑯質) 표면(表面)의 조도(粗度)에 관(關)한 실험적(實驗的) 연구(硏究)
AN EXPERIMFNENTAL STUDY ON THE SURFACE ROUGHNESS OF ACID ETCHING ENAMEL SURFACE IN HUMAN TEETH
- 이은구 (서울대학교 대학원 치의과학 보존학)
- Lee, Eun-Goo (Department of Operative Dentistry, Graduate School, Seoul National University)
- 발행 : 1979.12.31
초록
The purpose of this study was to measure the roughness on the acid -etching surface. The etching agents of three-kinds composite resins were used to etch the tooth surface. Newly extracted I5-anterior teeth were invested with self-curing acrylic resin, and the labial surface was exposed. The exposed labial side was polished with abrasive papers and finally polished on polishing machine with zinc oxide powder. After the teeth were polished, the specimens were washed by water and dried by air. Surface roughness tester, Taylor-Habson's Taly Surf-10, (Fig-1) was used to measure roughness of this unetched tooth surface. And that, the specimens were divided into three groups. The first group was etched with Restodent etchant, the second group was etched with Nuva-system etchant, and Hi-pol etching agent was used in the third group. And the surface roughness tester was used to measure roughness of the etching teeth surface. The results obtained were as follows. 1. The roughness of acid-etched enamel were increased
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