Abstract: Objective: To observe the different influence of compliance of patients with chronic periodontitis on clinical effect during periodontal maintenance. Methods: 70 cases of patients with chronic periodontitis were selected in our hospital. According to patient compliance, they were divided into complete compliance group and incomplete compliance group, 35 cases in each group. All patients were given the foundation treatment for 4 weeks and patients without operation indication were given periodontal maintenance therapy and regular reexamination.Before treatment and after 12 months of treatment in patients with plaque index (Plaque, index, PI), gingival index (Gingival, index, GI) and the depth of periodontal pocket (Probing depth, PD) and other indicators. Results: Before treatment, PI, GI and PD of two groups of patients had no significant difference. After 12 months of treatment, PI, GI and PD of the complete compliance group were (0.23±0.14), (0.84±0.23) and (0.23±0.14), PI, GI and PD of incomplete compliance group were (0.81±0.19), (1.12±0.30) and (0.81±0.19), (P<0.05). Conclusion: Better compliance of the chronic periodontitis patients had better curative effect than the poor compliance of patients.

Key words: Chronic periodontitis , Periodontal maintenance , Compliance , Clinical effect