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Influence of Crown/Implant Ratio on Marginal Bone Loss: A Systematic Review
Author(s) -
GaraicoaPazmiño Carlos,
SuárezLópez del Amo Fernando,
Monje Alberto,
Catena Andrés,
OrtegaOller Inmaculada,
GalindoMoreno Pablo,
Wang HomLay
Publication year - 2014
Publication title -
journal of periodontology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.036
H-Index - 156
eISSN - 1943-3670
pISSN - 0022-3492
DOI - 10.1902/jop.2014.130615
Subject(s) - dentistry , medicine , meta analysis , crown (dentistry) , implant , confidence interval , cochrane library , medline , surgery , biology , biochemistry
Background: With the increased use of short dental implants (<10 mm), a high crown/implant (C/I) ratio has become a common finding. However, the effect of the C/I ratio on the marginal bone loss (MBL) has not yet been examined extensively. Hence, the aim of the present systematic review is to explore the influence of the C/I ratio on the success rate and MBL of dental implants. Methods: Three electronic databases (PubMed, Ovid MEDLINE, and Cochrane Central) and a manual search for human trials with a minimal follow‐up of 6 months are used for the present study. A statistical analysis of the influence of the C/I ratio was performed on the peri‐implant MBL while considering follow‐up period, type of implants, implant connection, and technical and biologic complications. Results: One hundred ninety‐six potential articles were identified on the selected databases. Only 57 articles were selected for full‐text evaluation. According to the inclusion criteria, a total of 13 articles were included in this systematic review. A significant negative association between the C/I ratio and the MBL was found ( P = 0.012). However, no statistically significant difference was found ( P >0.15) for potential effects regarding the observation period, the type of implant connection, or between both methods of evaluating the C/I ratio. Conclusions: Within the limitations of the present study, the C/I ratio of implant‐supported restorations has an effect on peri‐implant marginal bone level. Within the range of 0.6/1 to 2.36/1, the higher the C/I ratio, the less the peri‐implant MBL.