Fig. 2

Flow diagram of the participants. From a total of 2500 diabetic patients referring to diabetes clinic, 120 were selected based on the inclusion criteria and then randomly divided into intervention and control groups (60 each). In both groups, pre-test was administrated and then the intervention group received HBM-based training and the control group received routine training. Three months later, post-test was administrated in both groups and oral health care behaviors were compared in both groups