Journal of Technologic Dentistry (대한치과기공학회지)

Korean Academy of Dental Technology (대한치과기공학회)
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Evaluation of marginal and internal gap of wax coping fabricated by CAD/CAM system using intraoral scanner

구강 내 스캐너를 사용하여 CAD/CAM으로 제작된 왁스 코핑의 적합도 평가

  • Kim, Dong-Yeon (Department of Dental Laboratory Science & Engineering, College of Health Science, Korea University) ;
  • Jung, Il-Do (Department of Dental Laboratory Science & Engineering, College of Health Science, Korea University) ;
  • Lee, Jae-Jun (Department of Dental Laboratory Science & Engineering, College of Health Science, Korea University) ;
  • Kim, Ji-Hwan (Department of Dental Laboratory Science & Engineering, College of Health Science, Korea University) ;
  • Kim, Myung-Bae (Korea academy of CAD/CAM Dental technology) ;
  • Kim, Woong-Chul (Department of Dental Laboratory Science & Engineering, College of Health Science, Korea University)
  • 김동연 (고려대학교 대학원 보건과학과 치의기공전공) ;
  • 정일도 (고려대학교 대학원 보건과학과 치의기공전공) ;
  • 이재준 (고려대학교 대학원 보건과학과 치의기공전공) ;
  • 김지환 (고려대학교 대학원 보건과학과 치의기공전공) ;
  • 김명배 (대한 치과CAD/CAM기공 학회) ;
  • 김웅철 (고려대학교 대학원 보건과학과 치의기공전공)
  • Received : 2014.12.31
  • Accepted : 2015.03.27
  • Published : 2015.03.30
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Abstract

Purpose: The aim of this study was to evaluate the marginal and internal gap of wax copings fabricated from extraoral scanning with intraoral scanning. Methods: Fifteen study models(abutment of teeth 16) were made by PMMA. STL files of thirty abutment were prepared by intraoral scanning with extraoral scanning. Wax copings of thirty fabricated using CAD/CAM system. Marginal and internal gap of wax copings of thirty were measured by silicone replica technique and digital microscope(${\times}140$). Date were analyzed by using independent samples t-test. Results: Mean (SD) of two group were measured $55.61(27.42){\mu}m$ for totally gap of ES group and $60.67(33.14){\mu}m$ for totally gap of IS group. But marginal and internal gap of two group were not differences statistically significant(p>0.05). Conclusion: Evaluation of marginal and internal gap of two group showed that no differences statistically significant and clinically acceptable results.

Keywords

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