Objective To investigate the influence of 1% povidone iodine combined with subgingival scaling and root planing (SRP) on supragingival plaque, gingival inflammation and patient acceptance in patients with stage I-II, grade A-B periodontitis. Methods 180 patients with stage I-II, grade A-B periodontitis who were treated in the hospital from December 2021 to December 2024 were selected and randomly divided into combined group (n=90, 1% povidone iodine combined with SRP) and SRP group (n=90, SRP) by envelope method. Plaque control effect[plaque index (PLI), plaque proportion], gingival inflammation degree [gingival index (GI), gingival blood flow, bleeding on probing (BOP)], periodontal tissue damage indexes [periodontal pocket depth (PD), total number of residual dental stone sites on root surface, clinical attachment loss (CAL)], Chinese version of acceptance of illness scale (AIS-CHI) score and safety were compared between the two groups. Results At 3 months after treatment, the PLI and proportion of plaque in the two groups were decreased, and the indexes in combined group were lower than those in SRP group. The GI, BOP and gingival blood flow were reduced in the two groups, and the indexes in combined group were lower. The PD, CAL and total number of residual dental stone sites on root surface in both groups were declined, and the indexes were lower in combined group than those in SRP group (P<0.05). The AIS-CHI score in the two groups was increased, and the score in combined group was higher compared to SRP group. There was no statistical difference in the total incidence rate of adverse reactions between the two groups. Conclusion 1% povidone iodine combined with SRP in the treatment of stage I-II, grade A-B periodontitis can control plaque, relieve gingival inflammation, improve the degree of periodontal tissue destruction, and enhance the acceptance of patients, with controllable safety.
Key words
periodontitis /
povidone iodine /
subgingival scaling and root planing /
dental plaque /
inflammation
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