Abstract: Objective To explore the treatment of patients with chronic periodontitis and periodontal health as well as to obtain a good shortterm prognosis. Methods The patients with mild to moderate chronic periodontitis after periodontal treatment were designed as the experimental group， the periodontal healthy subjects as control group. 1 month and 3 months before planting and after planting saliva of patients was collected， the stability of implants and periodontal status were examined， and saliva was determined by enzymelinked immunosorbent assay (ELISA) in IL-1， IL-17 and TNF-α. Results The expressions of ISQ， IL-1， IL-17 and TNF-α in three examinations were different， and the difference was statistically significant (P<0.05). In experimental group， the expressions of IL-1 beta， IL-17 and TNF-α were higher than those in the control group， and the difference was significant (P<0.05). In further analysis， the results of the experimental group in 3 months showed no statistically significant difference with the initial results of the control group (P>0.05). There was no significant difference in PD and ISQ between the experimental group and the control group (P>0.05). Experimental group and control group showed no statistical difference in initial stability (P>0.05). Conclusion In shorttime observation， after implant treatment the inflammatory factor levels of periodontitis patients decrease， and have good implant stability as the periodontal healthy patients. With occlusal load factors excluded， patients with mild to moderate periodontitis can also get good implant prognosis.

Key words: implant, whole unstimulated saliva, resonance frequency analysis, chronic periodontitis