Clinical outcome of double crown-retained implant overdentures with zirconia primary crowns.
- Author:
Sven RINKE
1
;
Ralf BUERGERS
;
Dirk ZIEBOLZ
;
Matthias ROEDIGER
Author Information
- Publication Type:Clinical Trial ; Original Article
- Keywords: Clinical trial; Telescopic crown; Overdenture; Zirconia; Survival; Success
- MeSH: Cohort Studies; Crowns*; Denture, Overlay*; Humans; Maxilla; Peri-Implantitis; Private Practice; Retrospective Studies; Sample Size; Survival Rate
- From:The Journal of Advanced Prosthodontics 2015;7(4):329-337
- CountryRepublic of Korea
- Language:English
- Abstract: PURPOSE: This retrospective study aims at the evaluation of implant-supported overdentures (IODs) supported by ceramo-galvanic double crowns (CGDCs: zirconia primary crowns + galvano-formed secondary crown). MATERIALS AND METHODS: In a private practice, 14 patients were restored with 18 IODs (mandible: 11, maxilla: 7) retained by CGDCs on 4 - 8 implants and annually evaluated for technical and/or biological failures/complications. RESULTS: One of the 86 inserted implants failed during the healing period (cumulative survival rate (CSR) implants: 98.8%). During the prosthetic functional period (mean: 5.9 +/- 2.2 years), 1 implant demonstrated an abutment fracture (CSR-abutments: 98.2%), and one case of peri-implantitis was detected. All IODs remained in function (CSR-denture: 100%). A total of 15 technical complications required interventions to maintain function (technical complication rate: 0.178 treatments/patients/year). CONCLUSION: Considering the small sample size, the use of CGDCs for the attachment of IODs is possible without an increased risk of technical complications. However, for a final evaluation, results from a larger cohort are required.
