关键词: 聚维酮碘, 牙周炎, 牙菌斑控制, 牙周基础治疗

Abstract: Periodontitis is a chronic inflammatory disease with dental plaque as the initial factor. To date，the main method in the treatment of periodontitis is mechanical plaque removal. However，in periodontal diseases there are infected sites that are not easily accessible to instruments，and microorganisms from other parts of the oral cavity can re-colonized the periodontal pocket. In addition，if patients have acute infections or are temporarily unable to perform oral hygiene measures after periodontal surgery，the application of local antibacterial drugs can achieve better efficacy. Povidone iodine（PVP-I），with its extensive antibacterial spectrum，can quickly kill periodontal pathogens and promote wound healing. It is a potential periodontal auxiliary drug with low toxicity and won′t cause bacterial drug resistance. This review summarized the researches and current status of povidone iodine in the adjuvant treatment of periodontitis in recent years，aming to provide more reference information for the drug treatment of periodontitis.

Key words: povidone iodine, periodontitis, plaque control, initial periodontal treatment