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牙周病是口腔疾病中的常见病、多发病，临床常用的治疗方法是机械洁治和刮治，虽能清除牙周袋内的大部分细菌，但对于清除牙周组织内部的致病菌及其毒性产物则有局限性，因此辅助药物治疗是必需的。治疗牙周病的药物主要是抗生素，但会破坏口腔中的菌群平衡。天然药物不仅能抑制牙周病致病菌的生长，维持口腔菌群平衡，而且无耐药性，较小或无不良反应，廉价易得，已成为国内外近年来研究的热点。“,”Periodontal disease is a common oral disease and frequently-occurring disease,and the com-mon treatment methods are the subgingival scaling of curettage. It can remove most of the bacteria in perio-dontal pockets,but cannot clean the invasive pathogenic bacteria and their toxic products in the periodontal pocket thoroughly,so auxiliary drug treatment is necessary. Periodontal therapy drugs are mainly antibiotics, but they can destroy flora balance in the oral cavity. Natural medicine not only can inhibit the growth of perio-dontal disease,maintain flora balance in the oral cavity,but also generates no drug resistance,with only little or no adverse reactions,and it is cheap and easily available,therefore has become a research hot spot both in domestic and abroad field in recent years.