Earticle

초록

영어

Purpose: The aim of this study was to evaluate the accuracy of provisional crowns manufactured using a milling machine and a digital light processing (DLP) printer. Methods: A full-contour crown was designed using computer-aided design software. Provisional crowns of this design were manufactured using a milling machine and using a DLP three-dimensional (3D) printer (N=20). The provisional crowns were digitized with an extraoral scanner, and 3D deviation analysis was applied to the scanned data to confirm their accuracy. An independent t-test was performed to detect the significant differences, and the Kolmogorov-Smirnov test was used for analysis (α=0.05). Results: No significant differences were found among the precision of marginal surface between the printed and milled crowns (p=0.181). The trueness of marginal and internal surfaces of the milled crowns were statistically higher than those of the printed crowns (p=0.024, p=0.001; respectively). Conclusion: The accuracy of provisional crowns manufactured using a milling machine and a 3D printer differed significantly except with regards to the precision of the internal surface. However, all the crowns were clinically acceptable, regardless of the manufacturing method used.

목차

Abstract
INTRODUCTION
MATERIALS AND METHODS
1. 실험 재료 및 시편 제작
2. 3D 중첩 평가
3. 통계 분석
RESULTS
DISCUSSION
CONCLUSIONS
REFERENCES

키워드

저자

• 노미준 [ Mi-Jun Noh | 고려대학교 대학원 보건과학과 치의기공학전공, 고려대학교 4단계 BK21 러닝헬스시스템융합사업단 ]
• 이하빈 [ Ha-Bin Lee | 고려대학교 대학원 보건과학과 치의기공학전공, 고려대학교 4단계 BK21 러닝헬스시스템융합사업단 ]
• 김지환 [ Ji-Hwan Kim | 고려대학교 대학원 보건과학과 치의기공학전공, 고려대학교 4단계 BK21 러닝헬스시스템융합사업단 ] Corresponding Author

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