PERIODONTAL HEALING AFTER REPLANTATION AND AUTO-TRANSPLANTATION OF INCISORS IN MONKEYS
PERIODONTAL HEALING AFTER REPLANTATION AND AUTO-TRANSPLANTATION OF INCISORS IN MONKEYS
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DOI：
10.1016/s0300-9785(81)80008-7
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发表时间：
1981-01-01
期刊：
影响因子：
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通讯作者：
ANDREASEN, JO
中科院分区：
文献类型：
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作者：
ANDREASEN, JO
在绿长尾猴 [Cercopithecus aethiops] 中研究了牙周膜牙骨质或牙槽部分损伤对牙齿再植和自体移植后牙周愈合的影响。 66颗上颌中切牙在18分钟盐水储存或120分钟干燥储存的牙槽外期后进行再植或自体移植。 8周后处死动物并对牙齿进行组织计量检查。在以下实验组中发现了相同的愈合：18分钟后的再植或自体移植以及去除或不去除牙槽中牙周膜的再植。与18分钟再植组相比，以下组中发现替代吸收（强直）显着增加：120分钟后再植和自体移植、去除牙根表面牙周韧带后的再植以及120分钟后自体移植到18分钟前拔牙的牙槽窝。与移植到 18 分钟牙槽相比，18 分钟后将自体移植到提前 120 分钟拔牙的牙槽会导致替代吸收量显着增加。牙根表面存在完整且可行的牙周膜显然是确保愈合而不发生牙根吸收的最重要因素。牙槽外期的长度似乎也对牙槽窝产生一些影响，促进强直的发展。
The effect of injury to the cemental or alveolar part of the periodontal ligament upon periodontal healing after replantation and autotransplantation of teeth was studied in green Vervet monkeys [Cercopithecus aethiops]. Sixty-six maxillary central incisors were replanted or autotransplanted after extraalveolar periods of 18 min saline storage or 120 min dry storage. The animals were sacrificed after 8 wk and the teeth examined histometrically. Identical healing was found in the following experimental groups: replantation or autotransplantation after 18 min and replantation with or without removal of periodontal ligament in the alveolus. A significant increase in replacement resorption (ankylosis) compared to the 18 min replantation group was found in the following groups: replantation and autotransplantation after 120 min, replantation after removal of periodontal ligament on the root surface and autotransplantation after 120 min to a socket where the tooth was extracted 18 min earlier. Autotransplantation after 18 min to a socket where a tooth was extracted 120 min earlier led to a significant increase in the amount of replacement resorption compared to transplantation to an 18 min socket. The presence of an intact and viable periodontal ligament on the root surface is apparently the most important factor in assuring healing without root resorption. The length of the extraalveolar period also seems to exert some influence upon the socket, enhancing the development of ankylosis.