Earticle

초록

영어

Purpose: The purpose of this in vitro study was to compare the marginal fit of POM restorations with 3 different thickness of metal coping. Methods: 2.0 Occlusal reduction, 1.0mm preparation of axial wall with 6degree taper, and chamfer margin was prepared a maxillary first premolar on dentiform. Duplicate prepared die and, make 30 individual dies with Ni-Cr metal. Make 3 groups of 30 press ceramic on Metal crown with different thickness of metal coping; 10 of 0.1 , 10 of 0.3 , 10 of 0.5 thickness metal coping. The marginal fit of the crowns was evaluated 50 points per 1 crown, around the crown margin circumference under a optical microscope at original magnification 100. A 1-way analysis of variance (ANOVA) was used to compare data. Results: The mean marginal discrepancy for POM with 0.1 metal copings was 72.56 , 67.83 for 0.3 metal coping POMs, and 72.56 for 0.5mm metal coping POM. The 1-way ANOVA showed significant difference among 3 groups. Conclusion: The marginal fit of pressed-on-metal (POMs) was best with 0.3 thickness of metal coping, fallowing by 0.1 , and 0.5 in the order.

목차

[Abstract]
 Ⅰ. 서론
 Ⅱ. 연구 방법
  1. 연구재료
  2. 실험방법
 Ⅲ. 결과
  1. 0.1㎜ 코핑 POM의 평균 변연간격
  2. 0.3㎜ 코핑 POM의 평균 변연간격
  3. 0.5㎜ 코핑 POM의 평균 변연간격
  4. 각 그룹간 차이와 그룹 내 신뢰도 검정
 Ⅳ. 고찰
 Ⅴ. 결론
 참고문헌

키워드

저자

• 임형택 [ Lim, Hyung-tek | 한양대학교병원 치과기공실 ] 교신저자

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  대한치과기공학회지 [THE JOURNAL OF KOREAN ACADEMY OF DENTAL TECHNOLOGY]

• 간기

  계간

• pISSN

  1229-3954

• eISSN

  2288-5218

• 수록기간

  1979~2026

• 등재여부

  KCI 등재

• 십진분류

  KDC 515 DDC 617