The Journal of Korean Academy of Prosthodontics (대한치과보철학회지)

The Korean Academy of Prosthodonitics (대한치과보철학회)
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Clinical accuracy of impression technique using digital superimposition of customized abutment with subgingival margin: A case report

치은연하 변연을 가지는 맞춤형 지대주에서 디지털 중첩기술을 이용한 인상채득술의 임상 적용 증례

  • Kim, Jin-Wan (Department of Prosthodontics, School of Dentistry, Pusan National University) ;
  • Jeong, Chang-Mo (Department of Prosthodontics, School of Dentistry, Pusan National University) ;
  • Yun, Mi-Jung (Department of Prosthodontics, School of Dentistry, Pusan National University) ;
  • Lee, So-Hyoun (Department of Prosthodontics, School of Dentistry, Pusan National University) ;
  • Lee, Hyeonjong (Department of Prosthodontics, School of Dentistry, Pusan National University) ;
  • Huh, Jung-Bo (Department of Prosthodontics, School of Dentistry, Pusan National University)
  • 김진완 (부산대학교 치의학전문대학원 치과보철학교실) ;
  • 정창모 (부산대학교 치의학전문대학원 치과보철학교실) ;
  • 윤미정 (부산대학교 치의학전문대학원 치과보철학교실) ;
  • 이소현 (부산대학교 치의학전문대학원 치과보철학교실) ;
  • 이현종 (부산대학교 치의학전문대학원 치과보철학교실) ;
  • 허중보 (부산대학교 치의학전문대학원 치과보철학교실)
  • Received : 2019.10.24
  • Accepted : 2019.12.12
  • Published : 2020.04.30
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Abstract

Traditionally, gingival retraction has been performed to obtain customized abutment impressions with subgingival margins of the implant supported prosthesis. However, gingival retraction may have side effects such as gingival recession and bleed, leading to an inaccurate impression. In order to prevent these problems, in this case, the new technique has been introduced; a customized abutment which is designed for superimposition is used. Before the connection of the abutment to the implant fixture, pre-scanned shape data are stored, and then the optical impression without gingival retraction is obtained after connecting to the fixture. The suprastructure is fabricated by superimposing the two data. This technique showed the clinical efficacy of fabricating the implant supported prosthesis with subgingival margin, which satisfied the aesthetics, convenience, and clinically acceptable marginal and internal fit.

임플란트 상부 보철물 제작 시 치은연하 변연을 가지는 맞춤형 지대주의 인상채득을 위해 전통적으로 치은 압배술이 실시되어 왔다. 하지만 치은 압배술은 치은 퇴축 등의 부작용이 있으며 출혈은 부정확한 인상채득의 원인이 될 수 있다. 본 증례에서는 이러한 문제점들을 해결하기 위해 보철물을 제작할 때 중첩 가능하도록 제작된 맞춤형 지대주를 이용하는 새로운 방법을 적용하였다. 지대주를 임플란트에 연결하기 전 형상데이터를 저장하고, 임플란트에 연결 후 치은 압배 과정 없이 광학 인상채득한 뒤 두 데이터를 중첩하여 상부보철물을 제작하였다. 치은 연하 변연을 가지는 임플란트 보철물 제작 시 심미성을 만족시키면서 기존의 인상채득 방식보다 빠르고 간편하며 우수한 변연 및 내면적합도를 보였기에 임상적 효용성에 대해 보고하고자 한다.

Keywords

References

  1. Ting-Shu S, Jian S. Intraoral digital impression technique: A review. J Prosthodont 2015;24:313-21. https://doi.org/10.1111/jopr.12218
  2. Joda T, Bragger U. Patient-centered outcomes comparing digital and conventional implant impression procedures: a randomized crossover trial. Clin Oral Implants Res 2016;27:e185-9. https://doi.org/10.1111/clr.12600
  3. Lee SJ, Gallucci GO. Digital vs. conventional implant impressions: efficiency outcomes. Clin Oral Implants Res 2013;24:111-5. https://doi.org/10.1111/j.1600-0501.2012.02430.x
  4. Seo KS, Kim SJ, Kwon JH, Chang JS. Implant digital impression with intraoral scanners: A literature review. The Korean Acad of Oral & Maxillofacial Implantology 2017;21:2-13. https://doi.org/10.32542/implantology.20170001
  5. Christensen GJ. Impressions are changing: deciding on conventional, digital or digital plus in-office milling. J Am Dent Assoc 2009;140:1301-4. https://doi.org/10.14219/jada.archive.2009.0054
  6. Tsirogiannis P, Reissmann DR, Heydecke G. Evaluation of the marginal fit of single-unit, complete-coverage ceramic restorations fabricated after digital and conventional impressions: A systematic review and meta-analysis. J Prosthet Dent 2016;116:328-35.e2. https://doi.org/10.1016/j.prosdent.2016.01.028
  7. Lin WS, Harris BT, Morton D. The use of a scannable impression coping and digital impression technique to fabricate a customized anatomic abutment and zirconia restoration in the esthetic zone. J Prosthet Dent 2013;109:187-91. https://doi.org/10.1016/S0022-3913(13)60041-4
  8. Lee SJ, Betensky RA, Gianneschi GE, Gallucci GO. Accuracy of digital versus conventional implant impressions. Clin Oral Implants Res 2015;26:715-9. https://doi.org/10.1111/clr.12375
  9. Kutkut A, Abu-Hammad O, Mitchell R. Esthetic considerations for reconstructing implant emergence profile using titanium and zirconia custom implant abutments: Fifty case series report. J Oral Implantol 2015;41:554-61. https://doi.org/10.1563/AAID-JOI-D-12-00274
  10. Bennani V, Schwass D, Chandler N. Gingival retraction techniques for implants versus teeth: current status. J Am Dent Assoc 2008;139:1354-63. https://doi.org/10.14219/jada.archive.2008.0047
  11. Azer SS. A simplified technique for creating a customized gingival emergence profile for implant-supported crowns. J Prosthodont 2010;19:497-501. https://doi.org/10.1111/j.1532-849X.2010.00604.x
  12. Ericsson I, Lindhe J. Probing depth at implants and teeth. An experimental study in the dog. J Clin Periodontol 1993;20:623-7. https://doi.org/10.1111/j.1600-051X.1993.tb00706.x
  13. Mizumoto RM, Yilmaz B. Intraoral scan bodies in implant dentistry: A systematic review. J Prosthet Dent 2018;120:343-52. https://doi.org/10.1016/j.prosdent.2017.10.029
  14. Molin M, Karlsson S. The fit of gold inlays and three ceramic inlay systems. A clinical and in vitro study. Acta Odontol Scand 1993;51:201-6. https://doi.org/10.3109/00016359309040568
  15. Lee JW, Park JM. Evaluation of marginal and internal gap under model-free monolithic zirconia restoration fabricated by digital intraoral scanner. J Korean Acad Prosthodont 2016;54:210-7. https://doi.org/10.4047/jkap.2016.54.3.210
  16. Miller RJ, Kuo E, Choi W. Validation of align technology's treat III digital model superimposition tool and its case application. Orthod Craniofac Res 2003;6:143-9. https://doi.org/10.1034/j.1600-0544.2003.247.x
  17. Ender A, Zimmermann M, Attin T, Mehl A. In vivo precision of conventional and digital methods for obtaining quadrant dental impressions. Clin Oral Investig 2016;20:1495-504. https://doi.org/10.1007/s00784-015-1641-y
  18. Guth JF, Runkel C, Beuer F, Stimmelmayr M, Edelhoff D, Keul C. Accuracy of five intraoral scanners compared to indirect digitalization. Clin Oral Investig 2017;21:1445-55. https://doi.org/10.1007/s00784-016-1902-4
  19. Fluegge T, Att W, Metzger M, Nelson K. A Novel Method to Evaluate Precision of Optical Implant Impressions with Commercial Scan Bodies-An Experimental Approach. J Prosthodont 2017;26:34-41. https://doi.org/10.1111/jopr.12362
  20. Kim KS, Lim YJ, Kim MJ, Kwon HB, Yang JH, Lee JB, Yim SH. Variation in the total lengths of abutment/implant assemblies generated with a function of applied tightening torque in external and internal implant-abutment connection. Clin Oral Implants Res 2011;22:834-9. https://doi.org/10.1111/j.1600-0501.2010.02063.x

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