牙周炎是牙齿周围较深层组织的一种慢性破坏性疾病,多发生在成年人。其临床表现主要是牙龈发炎、红肿、出血,牙根和牙龈之间形成牙周袋并常有溢脓,牙齿疼痛及牙龈肿胀反复发作,牙槽骨被破坏,导致牙齿松动,甚至脱落。由于本病是一种慢性疾病,常在每次急性发作后症状缓解,因此,常不被人们所重视,直至晚期方来就诊。此时,患者 Periodontitis is a chronic, devastating disease of the deeper tissues surrounding the tooth and occurs mostly in adults. The main clinical manifestations of inflammation of the gums, swelling, bleeding, the formation of periodontal pockets between the roots and gums and often overflow pus, tooth pain and swollen gums recurrent, alveolar bone is destroyed, resulting in loose teeth, or even fall off. As the disease is a chronic disease, often after each episode of acute symptoms of remission, therefore, are often not valued by people until the late treatment. At this point, the patient