The Journal of Korean Academy of Prosthodontics (대한치과보철학회지)

The Korean Academy of Prosthodonitics (대한치과보철학회)
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DMLS (Direct Metal Laser Sintering) denture repair technique for a removable partial denture: A case report

DMLS (Direct Metal Laser Sintering) 기술을 이용한 가철성 국소의치 수리 증례

  • Jang, Eun-Sun (Department of Prosthodontics, School of Dentistry, Chosun University) ;
  • Jang, Geun-Won (Department of Prosthodontics, School of Dentistry, Chosun University) ;
  • Byun, Jae-Joon (Department of Prosthodontics, School of Dentistry, Chosun University) ;
  • Kong, Dae-Ryong (Department of Prosthodontics, School of Dentistry, Chosun University) ;
  • Song, Joo-Hun (Department of Prosthodontics, School of Dentistry, Chosun University) ;
  • Lee, Gyeong-Je (Department of Prosthodontics, School of Dentistry, Chosun University)
  • 장은선 (조선대학교 치과대학 치과보철학교실) ;
  • 장근원 (조선대학교 치과대학 치과보철학교실) ;
  • 변재준 (조선대학교 치과대학 치과보철학교실) ;
  • 공대룡 (조선대학교 치과대학 치과보철학교실) ;
  • 송주헌 (조선대학교 치과대학 치과보철학교실) ;
  • 이경제 (조선대학교 치과대학 치과보철학교실)
  • Received : 2020.03.20
  • Accepted : 2020.07.08
  • Published : 2020.07.31
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Abstract

In recent years, digital technology has been developed in dentistry, which denture frameworks can be manufactured using DMLS (Direct Metal Laser Sintering) technique. A traditional impression method can be replaced by oral scanning and wax pattern production process can be achieved by the use of CAD/CAM techniques. The designed STL files can be sent to DMLS devices to fabricate final components of removable partial dentures (RPD). The advantages of digital dentistry are concision and precision. In this case study, a fracture of occlusal rests providing support and indirect retention was repaired by DMLS and laser welding techniques. It shows satisfactory results in adaptation accuracy and functional properties of the repaired denture.

최근 치과 분야에서 디지털 기술의 발전으로 DMLS (Direct Metal Laser Sintering) 기술을 사용하여 의치의 금속구조물 제작이 가능하다. 이 방법에서 인상은 구강 스캔이나 모델 스캔으로 대체 할 수 있으며, 기존 주조 소환 방법에서 왁스 패턴은 CAD 소프트웨어에서 설계되고, 설계된 STL (standard template library) 파일을 DMLS 기법을 통해 국소의치의 최종 구성 요소를 제작할 수 있다. 치과 분야에서 디지털 기술 이용의 장점은 적합도와 정확성에 있다. 본 증례에서 지지 및 간접 유지 역할을 하는 교합면 레스트의 파절이 발생한 환자에서 DMLS 기술과 레이저 용접 기술을 사용하여 국소의치를 수리하였으며, 기능적, 심미적으로 만족스러운 결과를 보였다.

Keywords

References

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