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http://dx.doi.org/10.4047/jkap.2021.59.1.79

Restoration of implant-supported fixed dental prosthesis using the automatic abutment superimposition function of the intraoral scanner in partially edentulous patients  

Park, Keun-Woo (Department of Prosthodontics, College of Dentistry, Yonsei University)
Park, Ji-Man (Department of Prosthodontics, College of Dentistry, Yonsei University)
Lee, Keun-Woo (Department of Prosthodontics, College of Dentistry, Yonsei University)
Publication Information
The Journal of Korean Academy of Prosthodontics / v.59, no.1, 2021 , pp. 79-87 More about this Journal
Abstract
The digital workflow of optical impressions by the intraoral scanner and CADCAM manufacture of dental prostheses is actively developing. The complex process of traditional impression taking, definite cast fabrication, wax pattern making, and casting has been shortened, and the number of patient's visits can also be reduced. Advances in intraoral scanner technology have increased the precision and accuracy of optical impression, and its indication is progressively widened toward the long span fixed dental prosthesis. This case report describes the long span implant case, and the operator fully utilized digital workflow such as computer-guided implant surgical template and CAD-CAM produced restoration after the digital impression. The provisional restoration and customized abutments were prepared with the optical impression taken on the same day of implant surgery. Moreover, the final prosthesis was fabricated with the digital scan while utilizing the same customized abutment from the provisional restoration. During the data acquisition step, stl data of customized abutments, previously scanned at the time of provisional restoration delivery, were imported and automatically aligned with digital impression data using an 'A.I. abutment matching algorithm' the intraoral scanner software. By using this algorithm, it was possible to obtain the subgingival margin without the gingival retraction or abutment removal. Using the digital intraoral scanner's advanced functions, the operator could shorten the total treatment time. So that both the patient and the clinician could experience convenient and effective treatment, and it was possible to manufacture a prosthesis with predictability.
Keywords
Automatic abutment matching; Computer-aided design-computer-aided manufacturing (CAD-CAM); Customized abutment; Intraoral scanner;
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1 Elani HW, Starr JR, Da Silva JD, Gallucci GO. Trends in dental implant use in the U.S., 1999-2016, and projections to 2026. J Dent Res 2018;97:1424-30.   DOI
2 Alikhasi M, Alsharbaty MHM, Moharrami M. Digital implant impression technique accuracy: A systematic review. Implant Dent 2017;26:929-35.   DOI
3 Schmidt A, Klussmann L, Wostmann B, Schlenz MA. Accuracy of digital and conventional full-arch impressions in patients: An update. J Clin Med 2020;9:688   DOI
4 Gallucci GO, Hamilton A, Zhou W, Buser D, Chen S. Implant placement and loading protocols in partially edentulous patients: A systematic review. Clin Oral Implants Res 2018;29:106-34.
5 Morton D, Gallucci G, Lin WS, Pjetursson B, Polido W, Roehling S, Sailer I, Aghaloo T, Albera H, Bohner L, Braut V, Buser D, Chen S, Dawson A, Eckert S, Gahlert M, Hamilton A, Jaffin R, Jarry C, Karayazgan B, Laine J, Martin W, Rahman L, Schlegel A, Shiota M, Stilwell C, Vorster C, Zembic A, Zhou W. Group 2 ITI consensus report: Prosthodontics and implant dentistry. Clin Oral Implants Res 2018;29:215-23.
6 Gonzalez-Martin O, Lee E, Weisgold A, Veltri M, Su H. Contour management of implant restorations for optimal emergence profiles: Guidelines for immediate and delayed provisional restorations. Int J Periodont Restor Dent 2020;40:61-70.   DOI
7 Ko KH, Huh YH, Park CJ, Cho LR. Axial displacement in cement-retained prostheses with different implant-abutment connections. Int J Oral Maxillofac Implants 2019;34:1098-104.   DOI
8 Seol HW, Heo SJ, Koak JY, Kim SK, Kim SK. Axial displacement of external and internal implant-abutment connection evaluated by linear mixed model analysis. Int J Oral Maxillofac Implants 2015;30:1387-99.   DOI
9 Tarnow DP, Emtiaz S, Classi A. Immediate loading of threaded implants at stage 1 surgery in edentulous arches: ten consecutive case reports with 1- to 5-year data. Int J Oral Maxillofac Implants 1997;12:319-24.
10 Tarnow DP, Emtiaz S, Classi A. Immediate loading of threaded implants at stage 1 surgery in edentulous arches: ten consecutive case reports with 1- to 5-year data. Int J Oral Maxillofac Implants 1997;12:319-24.
11 Park JM, Kim J, Shim JS. Review of computer-assisted implant surgeries: navigation surgery system vs. computer-guided implant template vs. robot. Implantology 2018;22:50-8.   DOI
12 Norton MR. Assessment of cold welding properties of the internal conical interface of two commercially available implant systems. J Prosthet Dent 1999;81:159-66.   DOI