치아용 Cement가 Pin Retention에 미치는 영향에 관한 실험적 연구
AN EXPERIMENTAL STUDY ON PIN RETENTION OF THE DENTAL CEMENT
김성간,
소속 상세정보
김성간 ( Kim Sung-Kan ) - 서울대학교 대학원 치의학과 보철학
KMID : 0362419750130010023
Abstract
The purpose of this study was to measure the retentive force of various kinds of dental cement. Cross-cutting the half of the occlual surface, pinhole were prepared on the dentin with No. 557 carbide bur. No. 557 steel burs were cemented in the pinholes and retentive force was measured by removing the burs with Istron testing machine. The Instron testing machine was operated at a rate of 0.2cm per minute. The following results were obtained: 1. The retentive force of zinc phosphate cement (A), reinforced zinc oxide and eugenol cement and polycrboxylate cement were similar to each other, but that of zinc phosphate cement (A) was the highest of all. 2. The retentive force of zinc phosphate cement (B) was the lowest of all.
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원문 및 링크아웃 정보
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