The Journal of the Convergence on Culture Technology (문화기술의 융합)

The International Promotion Agency of Culture Technology (국제문화기술진흥원)
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A Study on the Accuracy of Dental Abutments Manufactured by the Dental CAD/CAM Round Bar Milling Method and CNC Milling Machine

치과용 CAD/CAM 환봉밀링 방식과 CNC 밀링기를 통해 제작된 치과용 어버트먼트의 적합 정밀도 분석

  • JUNG SOOK KIM (Dept. of Dental Technology, Daejeon Health Institute of Technology)
  • 김정숙 (대전보건대학교 치기공과)
  • Received : 2023.10.03
  • Accepted : 2023.11.05
  • Published : 2023.11.30
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Abstract

Recently, the method of making a dental prothesis is changed in the ICT based digital way. In particular, with the emergence of the CAD/CAM or 3D printing for dental purpose, a computer based digital type is selected gradually more than an analog type. To make an implant abutment, it is possible to apply the conventional technique of making round bars, or the technique using a CNC milling machine. This study tested these two types of the techniques to find which one had more precision and a smaller error when the margin and occlusal surface was made. According to the test, the technique using a CNC milling machine to make an implant abutment had a small error and supported precise processing in terms of the margin fit and the occlusal surface. Therefore, it was found to be useful in making a custom-made prothesis.

최근 치과보철물 제작 방식은 ICT를 기반으로 하는 디지털방식으로 변화를하고 있다. 특히 치과용 CAD/CAM이나 3D 프린팅의 등장으로 임상에서는 아날로그 방식에서 점진적으로 컴퓨터를 활용하는 디지털 방식을 선택하고 있다. 임플란트의 어버트먼트를 제작하는 방식은 기존의 환봉제작 방식과 CNC 밀링기를 활용하여 제작하는 방식이 있다. 본 연구에서는 두 가지 방법으로 보철물의 변연과 교합면을 제작할 때 보다 정밀하고 오차가 적은 제작 방법이 무엇인지를 얻고자 실험을 실시하였다. 실험 결과 CNC 밀링기를 활용하여 임플란트 어버트먼트 보철물을 제작하는 방식이 변연과 교합면의 적합도 모두에서 오차가 적고 정교한 가공이 가능하여 맞춤형 보철물 제작을 하는데 유용한 것으로 나타났다.

Keywords

Acknowledgement

본 논문은 대전보건대학교 2022년도 논문게재비 지원을 받았음.

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