Clinical Effect of Photodynamic Therapy in the Treatment of Moderate Chronic Periodontitis
[Objective]To investigate the clinical effect of photodynamic therapy(PDT)in the treatment of moderate chronic periodontitis.[Methods]A total of 26 patients with moderate chronic periodontitis diagnosed and treated in SATH Hospital of Stomatology Henan University from January 2021 to September 2023 were selected.Two teeth with the same name with similar damage degree of bilateral periodontal tissue were select-ed from each patient.They were divided into the observation group(treated with SRP combined with PDT)and the control group(treated with SPR alone)according to random number table method,with 26 capsules in each group.Oral hygiene education and supragingival cleaning were performed in both groups.Periodontal pro-bing depth(PD),bleeding index(BI)and probing bleeding(BOP)were recorded 1 week later(before treat-ment),and SRP was performed on all teeth with PD≥4 mm.The positive rates of PD,BI and BOP were compared between the two groups before treatment,6 weeks after treatment and 12 weeks after treatment.[Results]Before treatment,there was no significant difference in the positive rates of PD,BI and BOP be-tween two groups(P＞0.05).The positive rates of PD,BI and BOP after 6 weeks and 12 weeks of treatment were significantly lower than before treatment,with statistical significance(P＜0.05).The positive rates of PD,BI and BOP in the observation group were significantly lower than those in the control group after 6 weeks and 12 weeks of treatment,with statistical significance(P＜0.05).[Conclusion]PDT,as an adjunct therapy for SPR,can reduce PD in the short term,relieve gingival inflammation and gingival bleeding.It has better clinical effect than SPR alone.
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