临床资料 选择一般身体健康的牙周炎患者,其患牙长期咀嚼痛,牙周脓肿反复发作,瘘管长期存在,牙周袋5mm以上,X线片显示有明显骨质缺损者。32例病人中,男性21例,女性11例,其中年龄最小者35岁,年龄最大者60岁,77只患牙分布第一磨牙32只牙,第一、二双尖牙28只牙,第二磨牙8只,前牙9只。病变类型: Clinical data Select the general health of patients with periodontitis, the teeth with long-term chewing pain, repeated episodes of periodontal abscess, fistula long-term presence, periodontal pocket 5mm above, X-ray showed significant bone defect. Among the 32 patients, there were 21 males and 11 females, of which the youngest was 35 years old and the oldest was 60 years old. There were 77 teeth distributed first molar 32 teeth, first and second pairs of canine teeth 28, Two molars 8, 9 anterior teeth. Lesions type: