To make comparative evaluation of gonial cortical bone thickness, antegonial index, gonial angle values and mandibular canal bone resorption, pathologies like ground-glass appearance in jawbones and brown tumor i n Iraqi patients undergoing dialysis due to chronic renal failure and patients from the healthy control group on panoramic .Panoramic radiographs were taken from 40 patients divided into two groups (20 normal and 20 dialysis patients) .Gonial cortical thickness, antegonial index and gonial angle values with the mandibular canal wall resorption were assessed , pathologies such as ground-glass appearance and Brown tumor as “available” or “not available.” Mandibular canal wall resorption (Chi-square:16.52 , P<0.01) was found highly statistically significant difference between the patient and control groups ,resorption detected mainly in right side of male patients .Panoramic radiographs showed decreasing in values of the measuring parametersin patients receiving dialysis treatment due to chronic renal failure compared to the control group.