Clinical evaluation of retained preload and cement washout in screw- and cement-retained implant prosthesis.
10.4047/jkap.2015.53.4.301
- Author:
Chae Heon CHUNG
1
;
Mee Kyoung SON
;
Seok Gyu KIM
Author Information
1. Department of Prosthodontics, College of Dentistry, Chosun University, Gwangju, Republic of Korea.
- Publication Type:Original Article
- Keywords:
Dental prosthesis design;
Dental cements;
Implant-supported dental prosthesis
- MeSH:
Dental Cements;
Dental Porcelain;
Dental Prosthesis Design;
Dental Prosthesis, Implant-Supported;
Follow-Up Studies;
Humans;
Prostheses and Implants*;
Survival Rate
- From:The Journal of Korean Academy of Prosthodontics
2015;53(4):301-309
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
PURPOSE: The aim of this study was to evaluate the clinical performance of screw- and cement-retained implant prosthesis (SCP) design in terms of retained preload of abutment screws and cement washout. MATERIALS AND METHODS: Patients with the partial posterior edentulous areas comprised the study group. Implants were placed, and SCPs were delivered after 3 to 6 months healing. Follow-up examinations were performed. The implant survival rate and the prosthetic success rate were evaluated. The retained preload ratio of abutment screws and the prosthetic decementation ratio were measured. RESULTS: Twenty one SCPs (forty three implants)in twenty patients were followed up to 64 months. All of the implants survived during the follow-up period (mean follow-up: 34 months). The prosthetic success rate was 100 % considering no abutment, screw, porcelain or metal frame fractures, as well as no screw loosening. The retained preload ratio of SCPs at the end of follow-up period was 97.61% (+/-16.29) and the decementation ratio was 9.5 %. CONCLUSION: Within the limitations of this clinical study, SCP design showed favorable short-term clinical performances in respect of screw loosening and cement washout.
