The Journal of Korean Academy of Prosthodontics (대한치과보철학회지)

The Korean Academy of Prosthodonitics (대한치과보철학회)
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Complete mouth rehabilitation, using jaw motion tracking and double scan technique in a patient with osteoarthrosis: a case report

골관절증 환자에서 하악 운동 추적 장치와 이중 스캔 기법을 활용한 완전 구강 회복 증례

  • Seo-Kyung Jeong (Department of Prosthodontics, School of Dentistry, Seoul National University) ;
  • Jai-Young Koak (Department of Prosthodontics, School of Dentistry, Seoul National University) ;
  • Seong-Joo Heo (Department of Prosthodontics, School of Dentistry, Seoul National University) ;
  • Seong-Kyun Kim (Department of Prosthodontics, School of Dentistry, Seoul National University) ;
  • Ji-Man Park (Department of Prosthodontics, School of Dentistry, Seoul National University)
  • 정서경 (서울대학교 치의학대학원 치과보철학교실) ;
  • 곽재영 (서울대학교 치의학대학원 치과보철학교실) ;
  • 허성주 (서울대학교 치의학대학원 치과보철학교실) ;
  • 김성균 (서울대학교 치의학대학원 치과보철학교실) ;
  • 박지만 (서울대학교 치의학대학원 치과보철학교실)
  • Received : 2023.09.07
  • Accepted : 2023.11.02
  • Published : 2024.01.31
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Abstract

This is a case report of complete mouth rehabilitation in a patient with generalized attrition and loss of posterior support. After analyzing the condition of the temporomandibular joint, multiple implants were placed to restore collapsed occlusion. Fixture/abutment level intraoral scanning was done instead of using conventional impression materials which entail multiple bite registration for cross-mounting. A 'jaw motion tracking'device, 'digital face-bow transfer', and 'double scan technique' which enables duplicating temporary restoration to definitive restoration were used to fabricate definitive prostheses. By using various digital techniques, complete mouth rehabilitation was done with minimal chair time in a patient with unstable occlusion.

본 증례는 치아의 전반적 마모를 보이며 구치부 지지가 소실된 환자를 대상으로 전악 수복을 진행한 증례이다. 측두 하악 관절의 상태를 분석 후, 붕괴된 교합을 회복하기 위해 다수의 임플란트가 식립되었다. 고정체/지대주 수준의 인상 채득에서, 교차 마운팅을 위한 여러 번의 복잡한 교합 기록을 동반하는 전통적 인상 채득 방법 대신 구강 스캐너를 이용한 방식을 채득하였다. 하악의 불안정한 움직임을 반영하기 위해, '하악 운동 추적(jaw motion tracking)'장치와 '디지털 안궁 이전(digital face-bow transfer)'을 이용하였고, 이차 임시 수복물을 기반으로 하여 최종 수복물로 복제하는 '이중 스캔 기법(double scan technique)'으로 최종 수복물을 제작하였다. 위와 같은 디지털 기술을 이용하여 불안정한 교합을 갖는 환자에게 보다 짧은 체어 타임으로 완전 구강 회복을 진행할 수 있다.

Keywords

Acknowledgement

본 연구는 교육부 한국연구재단(NRF)의 기초과학연구사업(NRF-2018R1D1A1B07042333)과 한국 정부(과학기술정보통신부, 산업통상자원부, 보건복지부, 식품의약품안전처)의 한국의료기기개발기금(과제번호: 202011A02)의 지원을 받아 수행되었음.

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