Abstract: Objective: To summarize the related factors by investigating the occurrence of periodontal diseases in oral periodontal examination. Methods: 2581 health examiners from June 2015 to June 2017 were selected. There were 1249 males and 1332 females, aged from 45 to 82 years. All the subjects were investigated with oral health knowledge questionnaire, and routine oral health examinations were conducted by oral physicians in our hospital. The prevalence of periodontal diseases was analyzed, and the incidence of oral periodontal diseases was studied with questionnaire. Results: The detection rate of periodontal disease was 91.36. Among them, 2275 cases were detected by odontolith (88.14%), 1096 cases were gingival hemorrhage (42.46%), and 1145 cases were periodontitis (44.36%). The factors of personal oral hygiene, orthodontic treatment or wearing denture, bacterial virus infection, and endocrine state were analyzed according to the results of questionnaire and inquiry. Psycho-social factors were the main factors that affected the occurrence of periodontal diseases, which were associated with the occurrence of oral periodontal diseases. Conclusion: The periodontal diseases, such as calculus, periodontitis, and gingival bleeding, are common in 2581 cases. They have the characteristics of high incidence and complicated condition. Clinic and patients should pay more attention to their periodontal health, improve their oral hygiene habits, actively avoid the occurrence of high-risk factors, and maintain periodontal health.

Key words: Oral periodontal examination, Periodontitis, Odontolith, Related factors