Although there is nowadays wide agreement on bacteria being the main etiologic agents of periodontal disease, their sole presence cannot damage periodontal tissues in all subjects. This suggests that an individual response and an adaptation to a certain quantity of bacterial biofilm can occur without the disease progressing and vice versa. | Assessment of psychopatologic traits in a group of patients with adult chronic periodontitis: Study on 108 cases and analysis of Compliance during and after periodontal treatment