The Journal of Korean Academy of Prosthodontics (대한치과보철학회지)

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

DOI QR Code

Accurate transfer of gingival morphology to definitive prostheses using temporary prostheses

임시 보철물을 이용한 연조직 형태의 정확한 전달과 최종 보철물로의 전환

  • Donghyun Kim (Department of Prosthodontics, Kyung Hee University College of Dentistry, Kyung Hee University Medical Center) ;
  • Seoung-Jin Hong (Department of Prosthodontics, College of Dentistry, Kyung Hee University) ;
  • Kwantae Noh (Department of Prosthodontics, College of Dentistry, Kyung Hee University) ;
  • Ahran Pae (Department of Prosthodontics, College of Dentistry, Kyung Hee University) ;
  • Hyeong-Seob Kim (Department of Prosthodontics, College of Dentistry, Kyung Hee University) ;
  • Kung-Rock Kwon (Department of Prosthodontics, College of Dentistry, Kyung Hee University) ;
  • Janghyun Paek (Department of Prosthodontics, College of Dentistry, Kyung Hee University)
  • 김동현 (경희대학교 치과병원 보철과) ;
  • 홍성진 (경희대학교 치과대학 치과보철학교실) ;
  • 노관태 (경희대학교 치과대학 치과보철학교실) ;
  • 배아란 (경희대학교 치과대학 치과보철학교실) ;
  • 김형섭 (경희대학교 치과대학 치과보철학교실) ;
  • 권긍록 (경희대학교 치과대학 치과보철학교실) ;
  • 백장현 (경희대학교 치과대학 치과보철학교실)
  • Received : 2024.07.09
  • Accepted : 2024.09.10
  • Published : 2024.10.31
Download PDF
⟨ Previous Next ⟩

Abstract

In fixed prosthodontic treatment of the maxillary anterior region, where high esthetics are required, it is crucial not only to achieve a successful prosthesis but also to form symmetrical and natural gingiva. To achieve esthetic gingiva, it is necessary to adjust the subgingival contour of the temporary prosthesis or to modify the base of pontic. However, during the transition from temporary to definitive prosthesis, the conventional method of removing the temporary prosthesis and taking an impression after gingival retraction often fails to accurately reproduce the gingival profile. In such cases, the gingiva is arbitrarily trimmed on the model to fabricate the definitive prosthesis, which reduces the predictability of esthetic treatment outcomes. This case report introduces methods to transfer the subgingival contour and the pontic base formed with the temporary prosthesis to the final model and definitive prosthesis through two cases.

높은 심미성이 요구되는 상악 전치부의 고정성 보철 치료에서 성공적인 치료 결과를 위해서는 보철물은 물론이고 대칭적이고 자연스러운 치은을 형성해주는 것이 중요하다. 심미적인 치은을 얻기 위해서는 임시 보철물의 치은연하 윤곽(subgingival contour)을 조절하거나, 가공치(pontic) 하방의 기저면 형태를 조절하는 등의 과정이 필요한데, 임시 보철물을 최종 보철물로 이행하는 과정에서 통상적인 방법으로 임시 보철물을 제거하고, 치은 압배 후 인상 채득을 하게 되면 임시 보철물이 장착된 상태의 치은 형태를 모형상에 그대로 재현하지 못한다. 이러한 경우, 모형상에서 임의로 치은을 삭제하여 최종 보철물을 제작하게 되어 심미적인 치료 결과의 예지성이 떨어지게 된다. 이에 본 증례보고에서는 임시 보철물에서 형성한 치은연하 윤곽과 가공치 하방 기저면 형태를 최종 모형 및 최종 보철물로 이행하는 방법에 대해 두 가지 증례를 통해 소개하고자 한다.

Keywords

References

  1. Magne P, Magne M, Belser U. The esthetic width in fixed prosthodontics. J Prosthodont 1999;8:106-18.  https://doi.org/10.1111/j.1532-849X.1999.tb00019.x
  2. Noh K, Kwon KR, Kim HS, Kim DS, Pae A. Accurate transfer of soft tissue morphology with interim prosthesis to definitive cast. J Prosthet Dent 2014;111:159-62.  https://doi.org/10.1016/j.prosdent.2013.09.018
  3. Kibayashi H, Takaoka R, Morita M. A method of transferring the subgingival contour of interim restorations to definitive restorations by using zirconia copings customized with casting wax. J Prosthet Dent 2022;127:698-702.  https://doi.org/10.1016/j.prosdent.2020.06.037
  4. Hinds KF. Custom impression coping for an exact registration of the healed tissue in the esthetic implant restoration. Int J Periodont Restor Dent 1997;17:584-91. 
  5. Agnini A, Romeo D, Giulia B, Tommaso W, Christian C, Agnini A. Copy-paste concept: Full digital approach in the management of gingival emergence profiles. J Esthet Restor Dent 2023;35:222-9.  https://doi.org/10.1111/jerd.13014
  6. Weisgold A. Coronal forms of the full crown restoration-Their clinical applications. Continuing Dental Education, Chicago; Quintessence publishing;1981. p. 39-47. 
  7. Sorensen JA. A standardized method for determination of crown margin fidelity. J Prosthet Dent 1990;64:18-24.  https://doi.org/10.1016/0022-3913(90)90147-5
  8. Kois JC. The restorative-periodontal interface: biological parameters. Periodontol 2000 1996;11:29-38.  https://doi.org/10.1111/j.1600-0757.1996.tb00180.x
  9. Loi I, Di Felice A. Biologically oriented preparation technique (BOPT): a new approach for prosthetic restoration of periodontically healthy teeth. Eur J Esthet Dent 2013;8:10-23. 
  10. Agustin-Panadero R, Martin-de Llano JJ, Fons-Font A, Carda C. Histological study of human periodontal tissue following biologically oriented preparation technique (BOPT). J Clin Exp Dent 2020;12:e597-602.  https://doi.org/10.4317/jced.56290
  11. Serra-Pastor B, Loi I, Fons-Font A, Sola-Ruiz MF, Agustin-Panadero R. Periodontal and prosthetic outcomes on teeth prepared with biologically oriented preparation technique: a 4-year follow-up prospective clinical study. J Prosthodont Res 2019;63:415-20.  https://doi.org/10.1016/j.jpor.2019.03.006
  12. Paniz G, Nart J, Gobbato L, Chierico A, Lops D, Michalakis K. Periodontal response to two different subgingival restorative margin designs: a 12-month randomized clinical trial. Clin Oral Investig 2016;20:1243-52.  https://doi.org/10.1007/s00784-015-1616-z
  13. Paniz G, Nart J, Gobbato L, Mazzocco F, Stellini E, De Simone G, Bressan E. Clinical periodontal response to anterior all-ceramic crowns with either chamfer or feather-edge subgingival tooth preparations: six-month results and patient perception. Int J Periodontics Restorative Dent 2017;37:61-8.  https://doi.org/10.11607/prd.2765
  14. Agustin-Panadero R, Serra-Pastor B, Fons-Font A, Sola-Ruiz MF. Prospective clinical study of zirconia full-coverage restorations on teeth prepared with biologically oriented preparation technique on gingival health: results after two-year follow-up. Oper Dent 2018;43:482-7. https://doi.org/10.2341/17-124-C