Volume 68, Issue 3 , Pages 508-514, March 2010
Characteristics of Implant Failures in Patients With a History of Oral Bisphosphonate Therapy
Purpose
This study examines the pattern of implant failures reported in a large cohort of patients who received oral bisphosphonate therapy.
Materials and Methods
A total of 8,572 individuals who received oral bisphosphonate drugs returned a dental survey that obtained information pertaining to implant placement and related complications. Among the 589 individuals reporting dental implants, 16 reported implant failures that were verified by dental records. Implant placement, timing of failure, and bisphosphonate duration were ascertained to determine the characteristics of implant loss in the setting of oral bisphosphonate exposure.
Results
Among the 16 patients (all women, aged 70.2 ± 7.6 yrs) there were 26 implant failures; 8 had failure of 12 implants in the maxilla and 9 had failure of 14 implants in the mandible. Early failure (≤1 yr after placement) was experienced by 8 patients (8 implants), whereas late failures (>1 yr after placement) occurred in 10 patients (18 implants); 2 patients had both early and late failures.
Conclusions
Overall, few patients reported implant failures. However, among these, there were more late than early failures and a slightly higher proportion of failures in the mandible versus the maxilla. Further studies should investigate the role of chronic bisphosphonate therapy in implant survival and long-term implant osseointegration.
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This study was funded by the US Food and Drug Administration (HHSF223200510008C), the National Institute of Child Health and Human Development at the National Institutes of Health (K12 HD052163), and the Kaiser Permanente Community Benefit Program. A portion of this study was also supported by the National Center for Research Resources at the National Institutes of Health (UCSF-CTSI UL1 RR024131). The contents of this publication are solely the responsibility of the authors and do not represent the official views of the Food and Drug Administration or the National Institutes of Health.
PII: S0278-2391(09)01759-5
doi:10.1016/j.joms.2009.09.055
© 2010 American Association of Oral and Maxillofacial Surgeons. Published by Elsevier Inc. All rights reserved.
Volume 68, Issue 3 , Pages 508-514, March 2010
