Annual failure rates and marginal bone‐level changes of immediate compared to conventional loading of dental implants. A systematic review of the literature and meta‐analysis

Clinical Oral Implants Research - Tập 26 Số 6 - Trang 671-687 - 2015
Sebastian Engelhardt1,2, Petros Papacosta1,3, Florian Rathe4,5, Jülide Özen6, John A. Jansen7, Rüdiger Junker4
1Both authors contributed equally.
2Section Parodontologie C1 Centre Médico‐Dentaire Geneva Switzerland
3Department of Implantology and Periodontology, Radboud University Nijmegen Medical Centre, Nijmegen, the Netherlands
4Department of Prosthodontics and Biomaterials, Danube Private University, Krems, Austria
5Private practice, Forchheim, Germany
6Department of Prosthetic Dentistry, Private Dental Clinic, Aachen, Germany
7Department of Biomaterials, Radboud University Nijmegen Medical Centre, Nijmegen, The Netherlands

Tóm tắt

AbstractBackgroundImmediate loading of dental implants appears to be a successful option. Questions still remain whether annual failure rates (AFRs) as well as annual marginal bone‐level changes are comparable with conventionally loaded implants.HypothesisImmediately loaded implants (≤24 h after implantation) do not show different annual survival rates or peri‐implant bone‐level changes as compared to conventionally loaded implants (≥3 months after implantation).Material and methodsAn electronic search in the National Library of Medicine and in Cochrane Central Register of Controlled Trials was performed for articles published up to November 2013. Only publications in English were considered. Additionally, the bibliographies of the full‐text papers were searched. Primary outcome variable was percentage AFR; secondary outcome variable was annual radiographic bone‐level change.ResultsElectronic search yielded 154 full‐text articles; ten randomized controlled clinical trials were eventually meta‐analyzed. Annual failure rates were 2.3% and 3.4% for conventionally and immediately loaded implants, respectively. No difference in implant failure rates was found (RR: 0.82). Regarding marginal bone‐level changes, the weighted mean difference (WMD) between immediate and conventional loading amounted to 0.02 mm at 1 year (P > 0.05), to 0.08 mm at 2 years (P > 0.05), −0.10 mm at 3 years (P > 0.05) and −0.3 mm at 5 years (P < 0.05). The totalWMDfor the combined follow‐up was 0.01 mm (P > 0.05).ConclusionNo clinically relevant differences regarding annual failure rates or radiographic bone‐level changes between conventionally and immediately loaded implants can be found for up to 5 years of follow‐up.

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Clinical Oral Implants Research

Tập 26 Số 6

671-687

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