Clinical research of the application of gold abutments in PFM crowns implant prosthetics

doi:10.12337/zgkqzzxzz.2022.02.007

Abstract

Abstract: Objective To review and evaluate clinical results of custom cast gold coping for dental implant restoration in special cases. In clinical application of implant restoration, when the occluso-gingival distance is 3.5-5.0 mm, it is difficult to adjust the stock abutment. In order to solve this clinical problem, this study discusses the implant restoration of porcelain fused to the metal （PFM）crown with a gold abutment, in order to provide a reference for solving this kind of clinical situation. Methods Clinically collected and reviewed 56 cases that the occluso-gingival distance (the distance from the implant shoulder to the opposing teeth） is 3.5-5.0 mm, and a total of 66 single crowns were restored with custom cast gold abutment from 2013 to 2021. The follow-up period during functional loading ranged from 24 to 72 months. Through periapical radiographs with parallel technique, and clinical examinations, the survival rate, incidence of complications, bone resorption around implants, and peri-implant soft tissue were evaluated. Results The survival rate of the implants using the custom cast gold coping is 100%; the incidence of technical complications is 3%; the incidence of biological complications is 21%; the average bone resorption around the dental implant is 1.18 mm, and the soft tissue is healthy. Conclusion In the situation of single implant crown restoration, when the occluso-gingival distance is 3.5-5.0 mm, the screw-retained integrated coping crown with custom cast gold coping can be applied as a reasonable option in this clinical situation.

Key words: Implant restoration, Gold abutment, Occluso-gingival distance

Wang Xia, Tang Suxia, Peng Lingyan, Chen Deping. Clinical research of the application of gold abutments in PFM crowns implant prosthetics[J]. Chinese Journal of Oral Implantology, 2022, 27(1): 34-39.

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