Earticle

초록

영어

Purpose: The aim of this study measured and compared the marginal and internal fit of metal cores with two base metal alloy (Ni-Cr alloy(non-beryllium), Co-Cr alloy). Methods: Maxillary right first molar abutment fabricated by titanium was prepared for this study. Impressions(10ea) were made from titanium model, and study models were poured with improved dental stone. Wax cores of twenty were prepared for burn-out and casting. Ten wax cores cast Ni-Cr alloy(non-Be), and finally ten cast Co-Cr alloy. Marginal and internal fit of cores was evaluated using silicone replica technique and digital microscope(x160). The data were statistically analyzed with the independent samples t-test ( <.05). Results: Mean(standard deviation, SD) marginal and internal fit total size of Ni-Cr alloy(non-Be) group was 73.3(14.4) and of Co-Cr alloy group 65.6(17.4) . The marginal and internal fit total size of Ni-Cr alloy group(non-Be) was statistically significantly greater than that of Co-Cr alloy group (P=.004). Conclusion: Co-Cr alloy cores in this study had a better marginal fit than Ni-Cr alloy(non-Be) cores.

목차

Abstract
 Ⅰ. 서론
 II. 연구방법
  1. 모형 제작
  2. 시편 제작
  3. 적합도의 정의 및 측정
  4. 통계 분석
 Ⅲ. 결과
 Ⅳ. 고찰
 Ⅴ. 결론
 REFERENCES

키워드

저자

• 김기백 [ Ki-Baek Kim | 고려대학교 대학원 보건과학과 치의기공전공 ]
• 김재홍 [ Jae-Hong Kim | 고려대학교 대학원 보건과학과 치의기공전공 ]
• 김웅철 [ Woong-Chul Kim | 고려대학교 대학원 보건과학과 치의기공전공 ]
• 김지환 [ Ji-Hwan Kim | 고려대학교 대학원 보건과학과 치의기공전공 ] 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