Survival of dental implants placed in sites of previously failed implants

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Survival of dental implants placed in sites of previously failed implants

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Publication Article, peer reviewed scientific
Title Survival of dental implants placed in sites of previously failed implants
Author Chrcanovic, Bruno ; Kisch, Jenö ; Albrektsson, Tomas ; Wennerberg, Ann
Date 2016
English abstract
Objectives: To assess the survival of dental implants placed in sites of previously failed implants and to explore the possible factors that might affect the outcome of this reimplantation procedure. Materials and methods: Patients that had failed dental implants, which were replaced with the same implant type at the same site, were included. Descriptive statistics were used to describe the patients and implants; survival analysis was also performed. The effect of systemic, environmental, and local factors on the survival of the reoperated implants was evaluated. Results: 175 of 10,096 implants in 98 patients were replaced by another implant at the same location (159, 14, and 2 implants at second, third, and fourth surgeries, respectively). Newly replaced implants were generally of similar diameter but of shorter length compared to the previously placed fixtures. A statistically significant greater percentage of lost implants were placed in sites with low bone quantity. There was a statistically significant difference (P = 0.032) in the survival rates between implants that were inserted for the first time (94%) and implants that replaced the ones lost (73%). There was a statistically higher failure rate of the reoperated implants for patients taking antidepressants and antithrombotic agents. Conclusions: Dental implants replacing failed implants had lower survival rates than the rates reported for the previous attempts of implant placement. It is suggested that a site-specific negative effect may possibly be associated with this phenomenon, as well as the intake of antidepressants and antithrombotic agents.
DOI https://doi.org/10.1111/clr.12992 (link to publisher's fulltext.)
Publisher Wiley
Host/Issue Clinical Oral Implants Research;
ISSN 1600-0501
Language eng (iso)
Subject Dental implants
Implant failure
Reimplantation
Survival rate
Medicine
Research Subject Categories::ODONTOLOGY
Handle http://hdl.handle.net/2043/21585 Permalink to this page
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