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논문검색

Original Article

DLP 방식의 3D 프린터로 제작된 임시 보철물의 변연 및 내면 정확도 평가

원문정보

Evaluation of marginal and internal accuracy of provisional crowns manufactured using digital light processing three-dimensional printer

노미준, 이하빈, 김지환

피인용수 : 0(자료제공 : 네이버학술정보)

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

저자정보

  • 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

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자료제공 : 네이버학술정보

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