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牙周病的发病率仅次于龋齿,在拔牙原因中也占了第二位。苏联学(Евдокпмов等)者认为在40岁的人中,50％患者有牙周病。在祖国医学著作中,很早已有牙周病的记载,如唐千金方称“齿断宣露”,其它如:“齿挺”、“齿间出血”、“风冲齿摇动”等。这些都充分说明了牙周病的症状。根据文献的记载,在古生代“……象龋齿,齿槽脓溢,骨髓炎……”的遗骨就被发现了。由于牙周病在牙支持组织内进行,使支持组织炎性变,牙周膜与牙槽骨遭到破坏形成盲袋。病理切片检查,见局部炎细胞浸润,盲袋下方骨质因破骨细胞的作用而吸收。使牙齿失去了正常的支持组织,因而发生流血,溢脓,牙齿松动,使牙齿失去正常之咬功能,甚至脱落,更可因牙周病变而继发炎性感染。由
The incidence of periodontal disease is second only to that of dental caries, which is also the second cause of tooth extraction. Soviet studies (Евдокпмов, etc.) think that in 40-year-olds, 50% of patients have periodontal disease. In the medical writings of the motherland, there is a long history of periodontal disease recorded, such as Tang Qian Jin side said “tooth off the disclosure,” others such as: “Ting Ting”, “interdental bleeding”, “Feng Chong teeth shaking” and so on. All these fully illustrate the symptoms of periodontal disease. According to the literature, the remains of the Paleozoic “... like dental caries, alveolar overflow, osteomyelitis ...” were found. As a result of periodontal disease in the tooth support tissue, so support tissue inflammatory changes, periodontal ligament and alveolar bone was destroyed to form a blind bag. Pathological examination, see the local inflammatory cell infiltration, under the blind bag of bone due to the role of osteoclasts and absorption. So that the loss of normal tooth support organizations, resulting in bleeding, overflow pus, loose teeth, the teeth lose the normal bite function, or even fall off, but also secondary to periodontal lesions and secondary inflammatory infections. by