Clinical accuracy of impression technique using digital superimposition ofcustomized abutment with subgingival margin: A case report
10.4047/jkap.2020.58.2.169
- Author:
Jin-Wan KIM
1
;
Chang-Mo JEONG
;
Mi-Jung YUN
;
So-Hyoun LEE
;
Hyeonjong LEE
;
Jung-Bo HUH
Author Information
1. Department of Prosthodontics, School of Dentistry, Pusan National University, Yangsan, Republic of Korea
- Publication Type:CASE REPORT
- From:The Journal of Korean Academy of Prosthodontics
2020;58(2):169-175
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
Traditionally, gingival retraction has been performed to obtain customized abutment impressions with subgingival margins of the implant supported prosthesis. However, gingivalretraction 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 techniquehas been introduced; a customized abutment which is designed for superimposition is used. Before the connection of the abutment to the implant fixture, pre-scannedshape data are stored, and then the optical impression without gingival retraction is obtained after connecting to the fixture. The suprastructure is fabricated by superimposingthe 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. (J Korean Acad Prosthodont 2020;58:169-75)
