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牙髓病治疗中,操作意外,牙内或牙外吸收致穿孔是常见的,过去均作拔除处理。作者复习文献并报告了用氢氧化钙治疗4例牙内穿孔病例获得满意疗效的处理经过。Seltzer以动物实验证明,牙周组织修复的好坏与穿孔的部位和修复的及时与否有关。根中三分之一和根尖三分之一穿孔的牙预后好,颈三分之一及/或髓室底穿孔的预后差。愈合最好的是穿孔立即被封闭,预后好与坏与穿孔修复的快慢有关。Lantz和person在狗身上的实验证实了以氯仿松香和马来乳胶充填穿孔,不论是否立即关闭穿孔,
Endodontic treatment, the operation of accidental, intra-or extra-oral absorption caused by perforation is common in the past were removed for treatment. The authors reviewed the literature and reported treatment with calcium hydroxide for the treatment of 4 cases of perforation of teeth with satisfactory efficacy. Seltzer animal experiments show that the quality of periodontal tissue repair and perforation of the site and repair timely or not. One-third of the root and apical one-third of the perforated teeth have a good prognosis, with a poor prognosis of one-third of the neck and / or perforation of the medullary cavity. The best healing is perforation immediately blocked, the prognosis is good and bad and perforation repair speed. Experiments by Lantz and person on dogs confirmed that perforation was filled with chloroform rosin and malaysian latex, irrespective of whether the perforation was closed immediately or not,