Purpose: This study aimed to assess the accuracy of implant custom abutments according to the different radii of the curvature value. Methods: Two custom abutments with different radii of the curvature value were designed based on dental computer-aided design. Then, a total of 20 customized abutments, 10 of each design, were milled according to the designs. The fabricated custom abutments were scanned using a model scanner. Using Geomagic Control X (3D Systems) scanned files were superimposed on the designed files to evaluate trueness, and scanned files for each group were superimposed on each other to evaluate precision. Results: The trueness values of radius of curvature value (CV)-0.75 and CV-1.50 were 56.26±5.66 μm and 47.10±2.64 μm, respectively. A significant difference (p<0.001) was found between the groups. The precision values of CV-0.75 and CV-1.50 were 26.87±1.24 μm and 26.08±1.03 μm, respectively. No significant difference was found between the groups. Conclusion: The radius of the curvature value in the custom abutment design affected the machining accuracy.
목차
Abstract INTRODUCTION MATERIALS AND METHODS 1. 맞춤형 지대주 제작 2. 3차원 측정과 통계분석 RESULTS DISCUSSION CONCLUSIONS FUNDING ACKNOWLEDGEMENTS CONFLICT OF INTEREST ORCID REFERENCES
키워드
Dental abutmentDental computer-aided design/computer-aided manufacturingPrecisionRadius of curvature valueTrueness
저자
강월 [ Wol Kang | 대전보건대학교 치기공학과 ]
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