Journal of Technologic Dentistry (대한치과기공학회지)

Korean Academy of Dental Technology (대한치과기공학회)
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Assessment of internal fitness on resin copings fabricated by 3 - ways methods: Three - dimensional analysis

세 가지 방식으로 제작된 레진코핑의 내면적합성 평가: 3차원적 분석

  • Kang, Seen-young (Department of Dental Laboratory Science & Engineering, College of Health Science, Korea University) ;
  • Park, Jin-Young (Institute for Health Science, College of Public Health Science, Korea University) ;
  • Kim, Dong-Yeon (Department of Dental Laboratory Science & Engineering, College of Health Science, Korea University) ;
  • Kim, Woong-Chul (Department of Dental Laboratory Science & Engineering, College of Health Science, Korea University)
  • 강신영 (고려대학교 대학원 보건과학과 치의기공전공) ;
  • 박진영 (고려대학교 보건과학연구소) ;
  • 김동연 (고려대학교 대학원 보건과학과 치의기공전공) ;
  • 김웅철 (고려대학교 대학원 보건과학과 치의기공전공)
  • Received : 2016.10.28
  • Accepted : 2017.03.15
  • Published : 2017.03.30
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Abstract

Purpose: The purpose of this study was to evaluate the internal fitness of the resin coping that was fabricated by the traditional and Digital manufacturing methods through 3-dimensional analysis. Methods: maxillary right second molar was chosen implant master model. Custom-built impression trays were manufactured. After screwing the pick-up impression coping onto the master cast, impressions were made with silicone impression. The Working model was then made with type IV stone. The coping was fabricated: SLAC group (n=8), APPC group (n=8), LAPC group (n=8) Resin coping data was measured by using a three-dimensional evaluation program. Internal fitness was calculated by RMS (Root Mean Square).It measures mean and Standard Deviation (SD). Results: Three groups are measured $47.11{\pm}(3.08){\mu}m$ total RMS of SLAC group, $48.35({\pm}1.55{\mu}m)$ for total RMS of LAPC group, $43.45{\pm}2.09{\mu}m$ for total RMS of APPC group. Measured value is gradually increased. Followed by autopolymerized pattern resin; Stereolithography resin, Light-activated pattern resin But there were no differences stastically(P>0.321). Conclusion: Evaluation of internal fitness on Resin copings was fabricated by three-ways methods showed that no differences statistically significant and clinically acceptable results.

Keywords

References

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