AN EXPERIMENTAL-STUDY IN DOGS OF TRANSSEPTAL FIBER ARRANGEMENT BETWEEN TEETH WHICH HAVE EMERGED IN ROTATED OR NON-ROTATED POSITIONS
AN EXPERIMENTAL-STUDY IN DOGS OF TRANSSEPTAL FIBER ARRANGEMENT BETWEEN TEETH WHICH HAVE EMERGED IN ROTATED OR NON-ROTATED POSITIONS
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DOI：
10.1177/00220345910700030701
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发表时间：
1991-03-01
影响因子：
7.6
通讯作者：
MALTHA, JC
中科院分区：
文献类型：
--
作者：
KUSTERS, ST;KUIJPERSJAGTMAN, AM;MALTHA, JC
牙周膜的横隔纤维被认为在正畸去旋转后的复发中发挥着作用。 本研究的目的是比较旋转萌出牙和非旋转萌出牙中附着部位的位置和横隔纤维的排列。 在五只狗中，在羽化前，单侧将第一上前磨牙置于旋转位置。 组织学评估表明，实验标本和对照标本中均出现了房间隔纤维。 在所有情况下，房间隔纤维桥接了两个相邻牙齿之间的最短距离。 结论是，房间隔纤维的附着部位不是由牙齿解剖结构本身决定的，而是由房间隔纤维发育过程中牙齿的位置及其在牙弓中的方向决定的。
Transseptal fibers of the periodontal ligament are thought to play a role in relapse after orthodontic derotation. The aim of this study was to compare the location of the attachment site and the arrangement of the transseptal fibers in rotated emerged and non-rotated emerged teeth. In five dogs, unilaterally, the first upper premolars were replaced into a rotated position, before emergence. Histological evaluation showed that transseptal fibers developed in the experimental as well as in the control specimens. In all cases, transseptal fibers bridged the shortest distance between two adjacent teeth. It was concluded that the attachment site of the transseptal fibers was not determined by the tooth anatomy itself, but by the tooth position and its orientation in the dental arch during transseptal fiber development.