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手术治疗根尖周囊肿113例,分两组,第Ⅰ组34例,累及41个牙齿,根尖暴露在囊腔内的长度:小于或等于根全长1/4者有25个牙(第1亚组),小于或等于根全长1/3者有16个牙(第2亚组)。施行囊肿摘除术并切除牙根尖,手术骨腔靠血凝块充填。第Ⅱ组79例,累及110个牙齿,根尖暴露在囊腔内的长度:小于或等于根全长1/4者有23个牙(第1亚组),小于或等于根全长1/3者有15个牙(第2亚组),大干根全长1/3但小于1/2者有40个牙(第3亚组),大于或等于根全长1/2者有32个牙(第4亚组)。施行囊肿摘除术保留牙
Surgical treatment of periapical cyst in 113 cases, divided into two groups, the first group of 34 cases involving 41 teeth, root tip exposed in the cyst cavity length: less than or equal to the root length of 1/4 of 25 teeth 1 subgroup) and 16 teeth less than or equal to 1/3 of the root length (subgroup 2). The implementation of cyst excision and removal of the apical, surgical bone filling by blood clots. 79 cases of group II, involving 110 teeth, the length of the root tip exposed in the cysts: less than or equal to the root length of 1/4 of the 23 teeth (subgroup 1), less than or equal to the root length of 1 / 3 had 15 teeth (group 2), 40 teeth (group 3) with 1/3 of the total length of the trunk, but less than 1/2, and 32 A tooth (subgroup 4). Cyst excision to retain teeth