Title: | A systematic review of the survival and complication rates of zirconia‐ceramic and metal‐ceramic single crowns |
Author: |
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Date: | 2018-10 |
Language: | English |
Scope: | 199-214 |
University/Institute: | Háskóli Íslands (HÍ) University of Iceland (UI) |
School: | Heilbrigðisvísindasvið (HÍ) School of Health Sciences (UI) |
Department: | Tannlæknadeild (HÍ) Faculty of Odontology (UI) |
Series: | Clinical Oral Implants Research;29(S16) |
ISSN: | 0905-7161 1600-0501 (eISSN) |
DOI: | 10.1111/clr.13306 |
Subject: | Biological; Complications; Fixed dental prostheses; Implant crown; Meta-analysis; Metal-ceramics; Succes; Survival; Systematic review; Technical; Zirconia framework; Tannlækningar; Tannfyllingarefni |
URI: | https://hdl.handle.net/20.500.11815/1411 |
Citation:Pjetursson BE, Valente NA, StrasdingM, Zwahlen M, Liu S, Sailer I. A systematic review of thesurvival and complication rates of zirconiaceramic and metalceramic single crowns. Clin Oral Impl Res. 2018;29(Suppl. 16):199–214. https://doi.org/10.1111/clr.13306
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Abstract:Objectives: The aim of the present systematic review was to analyze the survival and complication rates of zirconia based and metal ceramic implant supported single crowns (SCs).Materials and Methods: An electronic MEDLINE search complemented by manual searching was conducted to identify randomized controlled clinical trials, prospectivecohort and retrospective case series on implant supported SCs with a mean follow up time of at least 3years. Patients had to have been clinically examined at the follow up visit. Assessment of the identified studies and data extraction was performedindependently by two reviewers. Failure and complication rates were analyzed using robust Poisson’s regression models to obtain summary estimates of 5year proportions.Results: The search provided 5,263 titles and 455 abstracts, full text analysis was performed for 240 articles, resulting in 35 included studies on implantsupported crowns. Meta analysis revealed an estimated 5year survival rate of 98.3% (95% CI: 96.8–99.1) for metal ceramic implant supported SCs (n = 4,363) compared to 97.6% (95% CI: 94.3–99.0) for zirconia implant supported SCs (n = 912). About 86.7% (95% CI: 80.7–91.0) of the metal ceramic SCs (n = 1,300) experienced no biological/technical complications over the entire observation period. The corresponding rate for zirconia SCs (n = 76) was 83.8% (95% CI: 61.6–93.8). The biologic outcomes of the two types of crowns were similar; yet, zirconia SCs exhibited less aesthetic complications than metal ceramics. The 5year incidence of chipping of the veneering ceramic was similar between the material groups (2.9% metal ceramic, 2.8% zirconiaceramic). Significantly (p = 0.001), more zirconiaceramic implant SCs failed due to material fractures (2.1% vs. 0.2% metal ceramic implant SCs). No studies on newer types of monolithic zirconia SCs fulfilled the simple inclusion criteria of 3 years follow up time and clinical examination of the present systematic review.Conclusion: Zirconiaceramic implantsupported SCs are a valid treatment alternative to metal ceramic SCs, with similar incidence of biological complications and less aesthetic problems. The amount of ceramic chipping was similar between the material groups; yet, significantly more zirconia crowns failed due to material fractures.
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Description:Publisher's version (útgefin grein)
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Rights:This is an open access article under the terms of the Creative Commons AttributionNonCommercial License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited and is not used for commercial purposes.
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