Complications of implant-supported full-arch immediate prosthesis: a retrospective analysis of 114 cases
10.3760/cma.j.issn.1002-0098.2018.04.005
- VernacularTitle: 单颌种植即刻修复体戴用6个月以上的并发症及影响因素分析
- Author:
Huidan SHEN
1
;
Ping DI
1
;
Jianhui LI
1
;
Jia LUO
1
;
Yu ZHANG
1
;
Ye LIN
1
Author Information
1. Department of Implantology, Peking University School and Hospital of Stomatology & National Clinical Research Center for Oral Diseases & National Engineering Laboratory for Digital and Material Technology of Stomatology & Beijing Key Laboratory of Digital Stomatology, Beijing 100081, China
- Publication Type:Journal Article
- Keywords:
Dental prosthesis;
Postoperative complications;
COX proportional hazards ratio model
- From:Chinese Journal of Stomatology
2018;53(4):236-242
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To evaluate the feasibility of long-term function of implant-supported full-arch immediate prosthesis via assessing the complications and risk factors.
Methods:This historical cohort study included patients treated with implant-supported full-arch restoration under immediate loading protocol between April, 2008 to June, 2016 and wearing the immediate prosthesis for more than 6 months. Medical charts were reviewed for patients' general information, implant information, prosthetic information and details of prosthetic complications. COX proportional hazards ratio model was adopted to analyze the potential risk factors for prosthesis fracture.
Results:A total of 114 patients with a mean age of (56.7±10.2) years old and 144 prostheses were included. The median wearing time of immediate prosthesis was 17.6 months. Sixty-two (54%) patients experienced prosthetic complication, 30 of them suffered more than once. Artificial teeth fractures were more common in anterior region while resin base fractured more often in the posterior region. The possibility of immediate prosthesis fracture in the first year was high but declined over the following years. COX regression analysis showed that fibre-reinforcement (HR=0.486, P=0.017) and rigid opposing dentition (HR=2.272, P=0.016) were significantly related to the prosthesis fracture.
Conclusions:Long-term function of implant-supported full-arch immediate prosthesis renders a high prosthetic complication prevalence, featuring the prosthesis fracture as the most common complication and the first year of highest fracture probability. Fibre-reinforced acrylic immediate prosthesis may function well in cases with a removable denture restored opposing jaw.
