The Journal of Korean Academy of Prosthodontics (대한치과보철학회지)

The Korean Academy of Prosthodonitics (대한치과보철학회)
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Implant prosthesis for fully edentulous patients using intra-oral scanning and abutment merging technique: A case report

무치악 환자에서 구강 스캔과 지대주 중첩을 이용한 임플란트 보철수복 증례

  • Hwang, Chan-Hyeon (Department of Prosthodontics, Wonju College of Medicine, Yonsei University) ;
  • Jeong, Seung-Mi (Department of Prosthodontics, Wonju College of Medicine, Yonsei University) ;
  • Kim, Yong-Jun (Department of Prosthodontics, Wonju College of Medicine, Yonsei University) ;
  • Kim, Kyeong-Hee (Department of Prosthodontics, Wonju College of Medicine, Yonsei University) ;
  • Fang, Jeong-Whan (Department of Prosthodontics, Wonju College of Medicine, Yonsei University) ;
  • Kim, Dae-Hwan (Department of Prosthodontics, Wonju College of Medicine, Yonsei University) ;
  • Choi, Byung-Ho (Department of Oral and Maxillofacial Surgery, Wonju College of Medicine, Yonsei University)
  • 황찬현 (연세대학교 원주세브란스기독병원 치과보철과) ;
  • 정승미 (연세대학교 원주세브란스기독병원 치과보철과) ;
  • 김용준 (연세대학교 원주세브란스기독병원 치과보철과) ;
  • 김경희 (연세대학교 원주세브란스기독병원 치과보철과) ;
  • 방정환 (연세대학교 원주세브란스기독병원 치과보철과) ;
  • 김대환 (연세대학교 원주세브란스기독병원 치과보철과) ;
  • 최병호 (연세대학교 원주세브란스기독병원 구강악안면외과)
  • Received : 2016.07.07
  • Accepted : 2016.09.20
  • Published : 2017.01.31
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Abstract

In this case, the impression surface of the existing denture was scanned and was inverted three-dimensionally to express the residual ridge form. Implant planning was performed on the superimposed data of the CT with the scanned image of the denture with radiopaque markers attached. At the day of surgery, customized abutments fabricated in accordance with the form of the gingival margin were linked with fixtures and temporary restorations were set. In the process of fabricating the final prosthesis after the osseointegration of implant fixture, the intraoral scan images at abutment level were merged with images of the abutments scanned and stored before implant surgery. By fabricating the final prosthesis with the abutments obtained by merging can increase the marginal fitness of the final prosthesis and simplify the clinical process.

본 증례에서는 기존의 총의치 사용 환자에서 의치의 이장된 인상면을 스캔하고 이를 삼차원적으로 반전하여 잔존 치조제의 형태를 재현하고, 의치에 방사선 불투과성 마커를 부착한 상태로 스캔 및 CT 촬영을 진행하여 스캔 이미지와 CT 영상이 중첩된 데이터 상에서 임플란트 식립을 계획하였다. 수술 당일에는 치은 형태에 맞게 제작된 맞춤형 지대주와 임시 수복물을 장착하였다. 임플란트 고정체의 골유착이 완료된 이후 최종 보철물을 제작하는 과정에서는 임플란트 식립 전 미리 스캔하여 저장된 임플란트 지대주 이미지 파일과 구강 내 지대주 상태에서 채득된 구강 스캔 이미지를 중첩하였다. 중첩을 통해 얻어진 정확한 지대주 형태 상에서 최종 보철물을 제작함으로써 최종 보철물의 변연 적합도를 높이고 임상 과정을 간소화 할 수 있었다.

Keywords

References

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