Journal of Dental Rehabilitation and Applied Science (구강회복응용과학지)

Korean Academy of Stomatognathic Function and Occlusion (대한턱관절교합학회)
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Maxillary cement retained implant supported fixed prosthesis using the millingable Pd-Ag alloy generated by CAD/CAM system: clinical report after two years in service

상악 전부 무치악 환자에서 CAD/CAM 시스템으로 제작되는 Pd-Ag 합금을 이용한 고정성 임플란트 전악 수복 증례

  • Lee, Jun-Sik (Department of Prosthodontics, College of Dentistry, Dankook University) ;
  • Han, Se-Jin (Department of Oral and Maxillofacial Surgery, College of Dentistry, Dankook University) ;
  • Choi, Yu-Sung (Department of Prosthodontics, College of Dentistry, Dankook University)
  • 이준식 (단국대학교 치과대학 치과보철학교실) ;
  • 한세진 (단국대학교 치과대학 구강악안면외과학교실) ;
  • 최유성 (단국대학교 치과대학 치과보철학교실)
  • Received : 2014.01.02
  • Accepted : 2014.03.11
  • Published : 2014.03.31
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Abstract

Full-mouth reconstruction of a patient using dental implants is a challenge if there is vertical and horizontal bone resorption. Therefore, it is should be cautious in making the fixed prostheses that restore the function and the esthetics of the gingiva and teeth. In full mouth rehabilitation, CAD/CAM system makes it possible to fabricate restorations with high precision, regardless of span of the restoration. Recently, Palladium-silver (Pd-Ag) alloy which is highly biocompatible and millingable has been developed to compensate for the shortcomings of the titanium or zirconia. This clinical report presents the reconstruction of a maxillary arch with a cement retained implant supported fixed prosthesis using a Pd-Ag alloy generated by CAD/CAM system on eleven osseointegrated implants. The occluding surfaces were made of Pd-Ag alloy, to decrease the risk of chipping or fracture. The prostheses were esthetically pleasing, and no clinical complications have been reported after two years.

골흡수가 심한 환자에서 임플란트를 이용한 전악 수복의 경우 치은과 치아의 외형을 심미적이면서도 기능적으로 회복하기 위해서는 보철물 제작에 있어 신중을 기해야 한다. 이러한 전악 수복 증례에서 CAD/CAM 시스템이 높은 정확성을 가지는 보철물 제작을 가능하게 함으로써 사용이 증가하고 있다. 최근에 임상에서 티타늄이나 지르코니아의 단점을 보완하면서 높은 생체적합성을 가지고 CAD/CAM 시스템으로 제작할 수 있는 팔라듐-은(Pd-Ag) 합금이 개발되어 사용되고 있다. 본 증례에서는 상악 전부 무치악 환자에서 임플란트를 식립하고 도재의 chipping이나 파절의 위험을 감소시키기 위해 Pd-Ag 합금을 이용해 제작된 임플란트 고정성 보철물로 수복한 환자에 대해 보고하고자 한다.

Keywords

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