摘要牙周炎是由牙周致病菌所致的牙周组织慢性炎症性，破坏性疾病。
Abstract : Periodontitis is a chronic inflammatory and destruction disease caused by periodontal pathogens in the surrounding periodontal tissues.
摘要牙周炎是由牙周致病菌所致的牙周组织慢性炎症性，破坏性疾病。
Abstract : Periodontitis is a chronic inflammatory and destruction disease caused by periodontal pathogens in the surrounding periodontal tissues.
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