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局麻下将5只猴侧切牙唇面末髓并拔除,牙槽外露1小时,此期用菌斑污染实验牙牙髓,干燥,丁氧膏封洞后作不固定再植,愈合3周后按5周和3周观察期,各用5个上侧切牙预备根管,纸尖干燥,氢氧化钙水悬液填根管,丁氧膏封洞.下侧切牙对照,杀动物,截取前部颌骨,经固定脱矿,包埋,切片,HE染色,光镜下评价结果表明,氢氧化钙处理根管,牙周炎症吸收变成硬化,牙根吸收先于硬化。作者指出氢氧化钙处理根管。使根面PH升高,牙周修复细胞坏死,导致替代性吸收.牙周膜损伤牙根管内长期保留或反复更换氢氧化钙,可
Under local anesthesia, five monkey lateral incisors were removed and the alveolar was exposed for 1 hour. The plaque was used to contaminate the dental pulp of the experimental tooth. After drying, the butoxy capsaicin was sealed and replanted for 3 weeks According to the observation period of 5 weeks and 3 weeks, each of the five upper incisors was used to prepare the root canal, the tip of the paper was dry, the root canal was filled with calcium hydroxide aqueous suspension, The jaws were fixed demineralized, embedded, sectioned and stained with HE. The results of light microscope showed that calcium hydroxide treatment of root canal and periodontal inflammation became hardened, and root resorption preceded sclerosis. The authors point out that calcium hydroxide treats the root canal. So that the root surface PH increased periodontal repair of cell necrosis, resulting in alternative absorption of periodontal ligament injury in the root canal long-term retention or repeated replacement of calcium hydroxide,