口腔医学和内和 Osteonecrosis of」aW (ONJ) ONJ may caused by systemic medications radiation infection direct chemical toxicity trauma and other etiologies th Africa. All rights reserve Whitt and Dr. Corey J. Auch, University of Missouri-Kansas City口腔医学和内科 Osteonecrosis of Jaw （ＯＮＪ） • ONJ may caused by systemic medications,, radiation, infection, direct chemical toxicity, trauma, and other etiologies