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Systematic review of the survival rate and the incidence of biological, technical, and aesthetic complications of single crowns on implants reported in longitudinal studies with a mean follow‐up of 5 years

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E. Jung, Ronald, Zembic, Anja, Pjetursson, Bjarni E., Zwahlen, Marcel, S. Thoma, Daniel·2012·Clinical Oral Implants Research

Abstract

Objective: To assess the 5‐year survival of implant‐supported single crowns (SC s) and to describe the incidence of biological, technical, and aesthetic complications. The focused question was: What is the survival rate of implants supporting single crowns and implant‐supported crowns with a mean follow‐up of 5 years and to which extent do biological, technical, and aesthetic complications occur? Methods: A Medline search (2006–2011) was performed for clinical studies focusing on implant‐supported SC s with a mean follow‐up of at least 5 years. The search was complemented by an additional hand search and the inclusion of 24 studies from a previous systematic review (Jung et al. 2008a). Survival and complication rates were analyzed using random‐effects Poisson's regression models to obtain summary estimates of 5‐ and 10‐year proportions. Results: Forty‐six studies derived from an initial search count of 1083 titles and the complementary publications from the previous systematic review (Jung et al. 2008a) were selected and the data were extracted. Based on the meta‐analysis, survival of implants supporting SC s at 5 years amounted to 97.2% (95% CI: 96.3–97.9%), and at 10 years amounted to 95.2% (95% CI: 91.8–97.2%). The survival of implant‐supported SC s was 96.3% (95% CI: 94.2–97.6%) after 5 years and 89.4% (95% CI: 82.8–93.6%) after 10 years. For biological complications, a 5‐year cumulative soft tissue complication rate of 7.1% (95% CI: 4.4–11.3%) and a cumulative complication rate for implants with bone loss >2 mm of 5.2% (95% CI: 3.1–8.6%) were calculated. Technical complications reached a cumulative incidence of 8.8% (95% CI: 5.1–15.0%) for screw‐loosening, 4.1% (95% CI: 2.2–7.5%) for loss of retention, and 3.5% (95% CI: 2.4–5.2%) for fracture of the veneering material after 5 years. The cumulative 5‐year aesthetic complication rate amounted to 7.1% (95% CI: 3.6–13.6%). Conclusions: The outcomes of the meta‐analysis demonstrated high implant survival rates for both the single tooth implants and the respective single crowns after 5 and 10 years. However, technical, biological, and aesthetic complications were frequent.

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Metadata

Authors
E. Jung, R., Zembic, A., Pjetursson, B. E., Zwahlen, M., & S. Thoma, D.
Venue
Clinical Oral Implants Research
Publisher
Wiley
Published
2012-10
Volume
23
Issue
s6
Pages
2-21
ISSN
  • 0905-7161 (ISSN-L)
  • 1600-0501
OpenAlex
W2129020557
Cited by
1,019
References
84
FWCI
10.06
Type
journal article
Language
en
Open access
green

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

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How to cite

Cite CoChat for the checks on this page, and the paper for its own findings.

This page
CoChat. (2026). Citation check: Systematic review of the survival rate and the incidence of biological, technical, and aesthetic complications of single crowns on implants reported in longitudinal studies with a mean follow‐up of 5 years. https://app.cochat.ai/papers/10.1111/j.1600-0501.2012.02547.x
The paper
E. Jung, R., Zembic, A., Pjetursson, B. E., Zwahlen, M., & S. Thoma, D. (2012). Systematic review of the survival rate and the incidence of biological, technical, and aesthetic complications of single crowns on implants reported in longitudinal studies with a mean follow‐up of 5 years. Clinical Oral Implants Research. https://doi.org/10.1111/j.1600-0501.2012.02547.x

Data sources

Bibliographic data: Semantic Scholar, OpenAlex, Crossref.

Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).

Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.