To what extent does the crown–implant ratio affect the survival and complications of implant‐supported reconstructions? A systematic review

Clinical Oral Implants Research - Tập 20 Số s4 - Trang 67-72 - 2009
Rafael Juan Blanes1
1Private Practice, Clinica Pronova, Palma de Mallorca, Spain

Tóm tắt

AbstractObjective: To evaluate the occurrence of biological and technical complications with respect to the crown–implant (C/I) ratio of implant‐supported reconstructions.Material and methods: Electronic (MEDLINE) and hand searches were conducted for longitudinal prospective studies with a follow‐up period of at least 4 years. One reviewer performed screening and data abstraction. The following complications were evaluated: implant survival, peri‐implant crestal bone loss, implant fracture, and technical complications related to implant components and suprastructure.Results: The search provided 41 articles and abstracts, seven of which were selected for full‐text analysis. Only two articles were finally included. A qualitative data analysis revealed that the survival rate of implant‐supported reconstructions with a C/I ratio of more than 2 was 94.1%. In addition, peri‐implant crestal bone loss seemed not to be influenced by the C/I ratio of the implant rehabilitation, except in one study, which noted greater crestal bone loss with lower (<1) compared with higher (>2) C/I ratios. Technical complications related to implant components and suprastructure according to different C/I ratios were not found in any of the studies.Conclusions: Despite the diversity among studies with respect to data collection and study design, the current literature shows that the C/I ratios of implant‐supported reconstructions do not influence peri‐implant crestal bone loss.

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Clinical Oral Implants Research

Tập 20 Số s4

67-72

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