상악 완전 무치악 환자의 CAD/CAM 을 이용한 임플란트 식립(NobelGuide$^{TM}$) 및 즉시하중 후 고정성 보철수복 증례

Implant Supported Fixed Restoration for Maxillary Edentulism using CAD/CAM Guided Implant Surgery (NobelGuide$^{TM}$) and Immediate Loading

  • 허윤혁 (분당서울대학교병원 치과 보철과) ;
  • 이양진 (분당서울대학교병원 치과 보철과) ;
  • 김대곤 (강릉원주대학교 치과대학 보철학교실 및 구강과학연구소) ;
  • 조리라 (강릉원주대학교 치과대학 보철학교실 및 구강과학연구소) ;
  • 박찬진 (강릉원주대학교 치과대학 보철학교실 및 구강과학연구소)
  • Huh, Yoon-Hyuk (Department of Prosthodontics, Section of dentistry, Seoul National University Bundang Hospital) ;
  • Yi, Yang-Jin (Department of Prosthodontics, Section of dentistry, Seoul National University Bundang Hospital) ;
  • Kim, Dae-Gon (Department of Prosthodontics and Research Institute of Oral Science, College of Dentistry, Gangneung-Wonju National University) ;
  • Cho, Lee-Ra (Department of Prosthodontics and Research Institute of Oral Science, College of Dentistry, Gangneung-Wonju National University) ;
  • Park, Chan-Jin (Department of Prosthodontics and Research Institute of Oral Science, College of Dentistry, Gangneung-Wonju National University)
  • 투고 : 2012.09.03
  • 심사 : 2012.12.25
  • 발행 : 2012.12.30

초록

NobelGuide$^{TM}$ 임플란트 시스템은 골량과 골질을 수술 전에 판단하여 점막을 젖히지 않고 미리 계획된 스텐트와 보철물을 이용하여 즉시하중을 부여하는 CAD/CAM 기반의 임플란트 보철 치료방법이다. 환자의 불편감을 최소화하여 미리 예측 가능한 위치에 임플란트를 식립함으로써 술 후 합병증 및 보철과정을 간소화 할 수 있는 장점이 있다. 본 증례의 환자는 56세 남성으로 상,하악 부분 무치악 상태였으며, 상악전치부 보철물 탈락과 하악 전치가 흔들린다는 주소로 내원하였다. 이에 상악 잔존치 모두와 하악 4전치 발거 및 치주치료를 실시한 뒤 임시 의치를 6개월간 사용하여 발치와 치유 및 의치 적응여부를 평가하였다. 골량은 충분하다고 판단되었고 환자의 협조도와 경제적인 여건, 전신건강 등 여러 사항이 양호하여 CAD/CAM 기반의 수술템플렛을 이용한 무판막 수술을 통해, 미리 제작된 임시 고정성 보철물로 즉시하중을 부여하는 상악 NobelGuide$^{TM}$ 임플란트 시스템을 계획하였다. 사용중인 임시의치를 이용하여 제작한 방사선 스텐트로 CT를 촬영하고, computer based planning (Procera$^{(R)}$ software)을 통해 3차원적인 골형상과 각 부위별 단면상을 참고하여 상악에 8개의 임플란트 식립체를 생역학적 관점 및 골조건을 고려하여 분산 배치하였다. 미리 제작된 임시 고정성 보철물을 임플란트 수술 후 즉시 장착 및 하중을 부여하여 기능하도록 하였으며 6개월 후 골유착 정도를 평가한 뒤 금속구조물을 이용한 최종 보철물을 제작하였다. 하악의 경우 전치부 도재전장주조금속관과 우측 구치부 임플란트 보철물 제작을 통해 상, 하악 치료를 마무리하였다.

This case report described a technique utilizing a computer-aided design (CAD)/computer-aided machining (CAM) - guided surgical implant placement and prefabricated temporary fixed prosthesis for an immediately loaded restoration. The advantages of CAD/CAM guided implant procedures are flapless, minimally invasive surgery and shorter surgery time. With this technique, less postoperative morbidity and delivery of prosthesis for immediate function would be possible. A patient with an edentulous maxilla received 8 implants in maxilla using CAD/CAM surgical templates. Prefabricated provisional maxillary implant supported fixed prosthesis were connected immediately after implant installation. Provisional prosthesis was evaluated for aesthetics, function during 6 months. Definitive implant supported fixed porcelain fused metal bridges were fabricated.

키워드

참고문헌

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