Conical zirconia telescoping into electroformed gold: A retrospective study of prostheses supported by teeth and/or implants.
dental implants
long-term denture survival
telescopic restorations
zirconium-oxide ceramics
Journal
Clinical implant dentistry and related research
ISSN: 1708-8208
Titre abrégé: Clin Implant Dent Relat Res
Pays: United States
ID NLM: 100888977
Informations de publication
Date de publication:
Apr 2019
Apr 2019
Historique:
received:
24
08
2018
revised:
16
01
2019
accepted:
04
02
2019
pubmed:
21
2
2019
medline:
21
11
2019
entrez:
21
2
2019
Statut:
ppublish
Résumé
Telescopic prostheses are an evidence-based treatment modality, and conical zirconia crowns and electro-formed gold copings have been used for dentures supported by teeth and/or implants. We aimed to evaluate the survival rates of zirconia-based tooth/implant restorations. A total of 126 telescopic overdentures, all retained by conical zirconia crowns and electro-formed gold copings, were retrospectively evaluated and failures analyzed for abutment configurations. Survival rates and modifying factors were evaluated by Kaplan-Meier analysis, log-rank testing, and Cox regression analysis. We evaluated observation periods of up to 11.5 years (mean: 45.25 ± 25.11 months). Five-year prosthesis survival was 96.9 ± 2.2% (95% CI: 92.6-100). Six dentures had been lost, and these failures were significantly associated with specific abutment configurations. Within the limitations of this retrospective study, the concept of conical zirconia telescoping into electro-formed gold provides a viable alternative to other telescopic designs used for removable dental prostheses. The concept is well suited especially for tooth/implant-supported prosthetic rehabilitation.
Sections du résumé
BACKGROUND
BACKGROUND
Telescopic prostheses are an evidence-based treatment modality, and conical zirconia crowns and electro-formed gold copings have been used for dentures supported by teeth and/or implants.
PURPOSE
OBJECTIVE
We aimed to evaluate the survival rates of zirconia-based tooth/implant restorations.
MATERIALS AND METHODS
METHODS
A total of 126 telescopic overdentures, all retained by conical zirconia crowns and electro-formed gold copings, were retrospectively evaluated and failures analyzed for abutment configurations. Survival rates and modifying factors were evaluated by Kaplan-Meier analysis, log-rank testing, and Cox regression analysis.
RESULTS
RESULTS
We evaluated observation periods of up to 11.5 years (mean: 45.25 ± 25.11 months). Five-year prosthesis survival was 96.9 ± 2.2% (95% CI: 92.6-100). Six dentures had been lost, and these failures were significantly associated with specific abutment configurations.
CONCLUSIONS
CONCLUSIONS
Within the limitations of this retrospective study, the concept of conical zirconia telescoping into electro-formed gold provides a viable alternative to other telescopic designs used for removable dental prostheses. The concept is well suited especially for tooth/implant-supported prosthetic rehabilitation.
Substances chimiques
Gold
7440-57-5
Zirconium
C6V6S92N3C
zirconium oxide
S38N85C5G0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
317-323Informations de copyright
© 2019 Wiley Periodicals, Inc.