Millions of Americans are affected by painful jaw problems known as TMD, temporomandibular disorders, but predicting who is at risk has been extremely difficult. Now, for the first time, researchers in the University at Buffalo School of Dental Medicine are publishing a comprehensive set of clinical characteristics that they say will lead to the ability to identify individuals at risk for developing the painful conditions. Published in the November issue of the Journal of Pain, the UB research results are part of the Orofacial Pain Prospective Evaluation and Risk Assessment (OPPERA) study.