The Journal of Korean Academy of Prosthodontics (대한치과보철학회지)

The Korean Academy of Prosthodonitics (대한치과보철학회)
권호 표지
DOI QR코드

DOI QR Code

RPD framework fabrication using computer-aided design (CAD) and rapid prototyping

Computer-aided design (CAD) 및 쾌속조형술을 이용한 가철성 국소의치 수복 증례

  • Park, Seon-Ah (Department of Prosthodontics, School of Dentistry, Seoul National University) ;
  • Koak, Jai-Young (Department of Prosthodontics, School of Dentistry, Seoul National University) ;
  • Heo, Seong-Joo (Department of Prosthodontics, School of Dentistry, Seoul National University) ;
  • Kim, Seong-Kyun (Department of Prosthodontics, School of Dentistry, Seoul National University) ;
  • Park, Ji-Man (Department of Prosthodontics, School of Dentistry, Seoul National University)
  • 박선아 (서울대학교 치과대학 치과보철학교실) ;
  • 곽재영 (서울대학교 치과대학 치과보철학교실) ;
  • 허성주 (서울대학교 치과대학 치과보철학교실) ;
  • 김성균 (서울대학교 치과대학 치과보철학교실) ;
  • 박지만 (서울대학교 치과대학 치과보철학교실)
  • Received : 2016.08.04
  • Accepted : 2016.09.21
  • Published : 2017.01.31
Download PDF
⟨ Previous Next ⟩

Abstract

Nowadays, digital dentistry is generally applied to prosthodontics with fabrication of inlays or any other fixed prostheses by utilizing CAD/CAM (computer-aided design/computer-aided manufacturing) technology and intraoral scanner. However, in fabricating removable prosthesis, there are some limitations for digital technology to substitute conventional casting method. Therefore, approaching removable prostheses fabrication with CAD/CAM technology would be a meaningful trial. In this case report, Kennedy class III mandibular edentulous patient who was in need of increasing the vertical dimension of occlusion was treated with removable partial denture using CAD and rapid prototyping technique. Surveying and designing the metal framework of the partial denture was performed with CAD, and sacrificial plastic pattern was fabricated with rapid prototyping technique. During the follow up period of nine months, the removable partial denture has provided satisfactory results in esthetics and function.

CAD/CAM (computer-aided design/computer-aided manufacturing) 기술을 이용한 인레이 및 여러 고정성 보철물의 제작이 보편화되고 구강내 스캐너가 널리 보급되면서 디지털 치의학의 개념이 치과 보철학 분야 전반에 적용되고 있다. 그러나 가철성 보철 부분에서는 디지털 개념의 적용이 쉽지 않으며 기존의 주조 방식에 많이 의존하고 있다. 따라서 가철성 보철물의 제작 과정에 이런 개념을 적용해보려는 시도는 중요한 의미가 있다. 본 증례에서는 하악 Kennedy class III 무치악 환자에서 보철적, 심미적 요구에 의한 교합고경의 증가와 함께 CAD 및 쾌속조형술(RP, rapid prototyping)을 이용한 가철성 국소의치를 제작하였다. CAD를 이용하여 서베잉 및 국소의치 금속 구조물을 설계하였으며, 쾌속조형술은 금속 구조물을 주조하기 위한 레진 패턴 제작에 이용하였다. 9개월 간의 임상적 관찰 기간 동안 만족스러운 심미적, 기능적 결과를 얻어 이를 보고하고자 한다.

Keywords

References

  1. Eggbeer D, Bibb R, Williams R. The computer-aided design and rapid prototyping fabrication of removable partial denture frameworks. Proc Inst Mech Eng H 2005;219:195-202.
  2. Bibb RJ, Eggbeer D, Williams RJ, Woodward A. Trial fitting of a removable partial denture framework made using computeraided design and rapid prototyping techniques. Proc Inst Mech Eng H 2006;220:793-7.
  3. Wu J, Wang X, Zhao X, Zhang C, Gao B. A study on the fabrication method of removable partial denture framework by computeraided design and rapid prototyping. Rapid Prototyp J 2012;18:318-23. https://doi.org/10.1108/13552541211231743
  4. Kattadiyil MT, Mursic Z, AlRumaih H, Goodacre CJ. Intraoral scanning of hard and soft tissues for partial removable dental prosthesis fabrication. J Prosthet Dent 2014;112:444-8. https://doi.org/10.1016/j.prosdent.2014.03.022
  5. Hong YS, Park EJ, Kim SK, Koak JY, Heo SJ, Park JM. Surveyed restoration and RPD framework design utilizing electronic surveying. J Korean Acad Prosthodont 2011;49:354-61. https://doi.org/10.4047/jkap.2011.49.4.354
  6. Ormianer Z, Gross M. A 2-year follow-up of mandibular posture following an increase in occlusal vertical dimension beyond the clinical rest position with fixed restorations. J Oral Rehabil 1998;25:877-83. https://doi.org/10.1046/j.1365-2842.1998.00326.x
  7. Ormianer Z, Palty A. Altered vertical dimension of occlusion: a comparative retrospective pilot study of tooth- and implantsupported restorations. Int J Oral Maxillofac Implants 2009;24:497-501.
  8. Abduo J, Lyons K. Clinical considerations for increasing occlusal vertical dimension: a review. Aust Dent J 2012;57:2-10.
  9. Kanazawa M, Iwaki M, Minakuchi S, Nomura N. Fabrication of titanium alloy frameworks for complete dentures by selective laser melting. J Prosthet Dent 2014;112:1441-7. https://doi.org/10.1016/j.prosdent.2014.06.017
  10. Koutsoukis T, Zinelis S, Eliades G, Al-Wazzan K, Rifaiy MA, Al Jabbari YS. Selective laser melting technique of Co-Cr dental alloys: A review of structure and properties and comparative analysis with other available techniques. J Prosthodont 2015;24:303-12. https://doi.org/10.1111/jopr.12268

Cited by

  1. Comparison of internal adaptation of removable partial denture metal frameworks made by lost wax technique and printing technique of pattern using CAD vol.56, pp.1, 2018, https://doi.org/10.4047/jkap.2018.56.1.17
  2. A case of removable dentures using digital method vol.56, pp.3, 2018, https://doi.org/10.4047/jkap.2018.56.3.250
  3. 국부상의치의 전해연마에 따른 SLS 3D 프린터의 적합성 평가 vol.19, pp.6, 2017, https://doi.org/10.13065/jksdh.20190092
  4. DMLS (Direct Metal Laser Sintering) 기술을 이용한 가철성 국소의치 수리 증례 vol.58, pp.3, 2020, https://doi.org/10.4047/jkap.2020.58.3.251
  5. 전신성 피부경화증 환자에서의 3차원 구강스캐너를 이용한 가철성 국소의치 제작 증례 vol.59, pp.1, 2017, https://doi.org/10.4047/jkap.2021.59.1.116