PAIN SEVERITY, NEGATIVE AFFECT, AND MICROSTRESSERS AS PREDICTORS OF LIFE INTERFERENCE IN TMD PATIENTS

The purpose of this study was to examine the relationships among negat ive affect (depression, anxiety, and anger), microstressors (hassles), temporomandibular disorder (TMD) pain severity, and life interference , using structural equations modeling, One hundred four subjects were recruited from the Parker Mahan Facial Pain Clinic at the University o f Florida, Significant positive direct effects were found for paths be tween pain severity and life interference; pain severity and negative affect; and negative affect and life interference. These results are c onsistent with a learning or behavioral model of suffering and suggest that negative affect is an important mediating variable in the relati onship between pain and life interference. Microstressors were not a s ignificant predictor and may not be a relevant issue in the TMD popula tion. The results suggest that the impact of chronic pain conditions i s influenced by both pain and negative affect, and assessment and trea tment of chronic TMD disorders may better benefit from a multidiscipli nary approach.