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IADR/AADR Journal of Dental Research releases large studies on osteonecrosis of the jaw
Date:2/11/2011

Alexandria, VA Osteonecrosis of the jaw (ONJ) is a debilitating bone condition that affects the jaws and occurs as a result of reduced local blood supply to the bone. The literature in this area has been severely limited since most investigations cannot evaluate sufficient numbers of afflicted individuals to accurately determine the incidence of the disease and associated risk factors. Today, the International and American Associations for Dental Research's Journal of Dental Research (JDR) released a research report that estimates the prevalence of the disease, and a case-control study on bisphosphonate use and other risk factors. These investigations published in the JDR represent some of the largest published studies to date on ONJ patients, and the researchers involved utilized the National Institute of Dental and Craniofacial Research-supported Practice-based Research Networks (PBRNs).

In a JDR article titled "Risk Factors for Osteonecrosis of the Jaws: a Case-control Study," authors A. Barasch, J. Cunha-Cruz, F.A. Curro, P. Hujoel, A.H. Sung, D. Vena and A.E. Voinea-Griffin conducted a case-control study with three DPBRNs to determine the risk associated with bisphosphonates and identify other risk factors for ONJ, including dental diseases and procedures. Researchers enrolled 191 ONJ cases and 573 controls from 119 dental practices. Bisphosphonate use was strongly associated with ONJ with an odds ratio of 299.5 for intravenous use and 12.2 for oral use.

In a second JDR article titled "ONJ in Two Dental Practice-Based Research Network Regions," authors J.L. Fellows, D.B. Rindal, A. Barasch, C.M. Gullion, W. Rush, D.J. Pihlstrom and J. Richman conducted a Dental Practice-based Research Network (DPBRN) study that estimated ONJ incidence and odds ratios from bisphosphonate exposure and other risk factors using patients' electronic records. The researchers identified 572,606 health plan members and of those patients, approximately 25
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Contact: Ingrid L. Thomas
ithomas@iadr.org
703-299-8084
International & American Association for Dental Research
Source:Eurekalert

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