구강회복응용과학지 (Journal of Dental Rehabilitation and Applied Science)

  • 제32권3호
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  • Pages.246-254
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  • 2016
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  • 2384-4353(pISSN)
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  • 2384-4272(eISSN)
대한턱관절교합학회 (Korean Academy of Stomatognathic Function and Occlusion)
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Direct metal laser sintering 방식을 이용하여 제작한 다양한 고정성 보철물 수복 증례

Fixed prostheses fabricated by direct metal laser sintering system: case report

  • 백주원 (단국대학교 치과대학 치과보철학교실) ;
  • 신수연 (단국대학교 치과대학 치과보철학교실)
  • Baek, Ju-Won (Department of Prosthodontics, School of Dentistry, Dankook University) ;
  • Shin, Soo-Yeon (Department of Prosthodontics, School of Dentistry, Dankook University)
  • 투고 : 2016.08.16
  • 심사 : 2016.09.19
  • 발행 : 2016.09.30
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초록

Direct metal laser sintering (DMLS) 방식은 3D 프린팅 중 한 방식으로, 재료를 쌓아가면서 레이저를 이용하여 선택적으로 sintering하는 방식이다. 이는 주조 방식에서 문제되는 결손과 뒤틀림을 방지할 수 있으며 절삭 가공 방식으로 제작하기 어려운 복잡한 구조물을 제작할 수 있다. 본 증례들은 DMLS 방식을 이용하여 지대치 간 길이가 긴 고정성 보철물, 포스트 등 다양한 고정성 보철물을 제작하여 수복하였고, 주기적인 관찰 결과 심미적, 기능적으로 만족할만한 결과를 얻었기에 이를 보고하는 바이다.

Nowadays, 3 dimentional (3D) printing, especially Direct Metal Laser Sintering (DMLS) system is used in dentistry. DMLS system has recently been introduced for fabrication metal framework for metal ceramic crowns to overcome the disadvantages of the casting method and computer aided design/computer aided manufacturing (CAD/CAM) milling system. DMLS system uses a high-temperature laser beam to selectively heat a substructure metal powder based on the CAD data with the framework design. A thin layer of the beamed area becomes fused, and the metal framework is completed by laminating these thin layers. Utilizing DMLS system to fabricate fixed prostheses is expected to achieve free-from shaping without mold and limitations from cutting tools, fabricate prostheses with complex geometry, prevent distortion and fabrication defects that inherent to conventional fabrication methods. The purpose of this case report is to demonstrate various fixed prostheses such as long span fixed prostheses, post to achieve satisfactory results in functional and esthetic aspects.

키워드

참고문헌

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피인용 문헌

  1. Latest Research Trends of 3D Printing in Korea vol.35, pp.9, 2016, https://doi.org/10.7736/kspe.2018.35.9.829