Analysis of the Effect of Photodynamic Therapy Combined with Subgingival Scraping and Root Planing in the Treatment of Severe Chronic Periodontitis
Keywords:
Photodynamic Therapy (PDT), Severe Chronic Periodontitis, Scaling and Root Planing (SRP)Abstract
This study aims to compare the clinical efficacy of photodynamic therapy (PDT) combined with scaling and root planing (SRP) versus SRP alone in the treatment of severe chronic periodontitis. Using a self-controlled design, 34 patients with severe chronic periodontitis, each having 300 probing sites with depths ≥7 mm, were randomly divided into an experimental group (SRP+PDT) and a control group (SRP). The experimental group received a single PDT session following SRP, while the control group received SRP alone. Periodontal probing depth (PD) and bleeding on probing (BOP) were assessed at baseline, 1 month, and 3 months post-treatment. Results showed significant improvements in both PD and BOP in both groups, with the experimental group demonstrating superior outcomes compared to the control group, with statistically significant differences (P<0.05). In conclusion, PDT combined with SRP is more effective in improving the clinical symptoms of severe chronic periodontitis compared to SRP alone.
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Copyright (c) 2025 Zongdi Zhao, Shuanglong Li, Shiyuan Wang, Yongjiang Liu
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