Earticle

초록

영어

Purpose: In this study, the marginal fitness of ceramic Co-Cr metal crown made by precision casting, milling, and selective laser melting method were compared. Methods: The ceramic Co-Cr metal crown manufactured by precision casting used the lost wax(LC specimen) method. The abutment were scanned and then made by milling(CM specimen), selective laser melting(CS specimen) method. The specimen were cut bucco-lingual and mesio-distal, and absolute marginal discrepancy and marginal gap were measured using a digital microscope. The surface roughness of the crown was also observed. Results: On the bucco-lingual axial, absolute marginal discrepancy was the LC specimen 31.72(±4.58)㎛, the CM specimen 78.29(±3.28)㎛ and the CS specimen 143.13(±3.83)㎛, respectively. On the bucco-lingual axial, marginal gap was the LC specimen 22.70(±1.46)㎛, the CM specimen 22.70(±1.49)㎛ and CS specimen 99.60(±1.57)㎛, respectively. Conclusion: For ceramic Co-Cr metal crowns, LC specimen was superior for absolute marginal discrepancy and marginal gap. The surface of metal crowns by selective laser melting were the roughest.

목차

Abstract
 Ⅰ. 서론
 Ⅱ. 연구 방법
  1. 실험재료
  2. 시편제작
  3. 기기분석
 Ⅲ. 결과
  1. 표면 형상
  2. 변인적합도
 Ⅳ. 고찰
 Ⅴ. 결론
 REFERENCES

키워드

저자

• 전병욱 [ Byung-Wook Jeon | 부산가톨릭대학교 보건과학대학 치기공학과, 치과기공기재학회 ]
• 김부섭 [ Bu-Sob Kim | 부산가톨릭대학교 보건과학대학 치기공학과, 치과기공기재학회 ] 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