Histometric study of root resorption on human premolars following experimental replantation.
Histometric study of root resorption on human premolars following experimental replantation.
复制标题
实验性再植后人前磨牙牙根吸收的组织计量学研究。
DOI：
10.1111/j.1600-0722.1987.tb01842.x
复制
发表时间：
1987
期刊：
影响因子：
--
通讯作者：
E. Kvam
中科院分区：
文献类型：
--
作者：
M. Breivik;E. Kvam
应用组织计量法评估 57 颗实验性再植牙和 22 颗对照牙的牙根吸收情况。选择代表性的轴颊舌切片，以 40 倍的放大倍数测量吸收。对照牙齿中的牙根吸收频率较低。在再植牙齿中，2周后出现由创伤引起的明显的再吸收活动。活性吸收的程度增加直至术后第三周。在此阶段，平均 14% 的根部周边受到影响。术后第六周后，骨水泥逐渐沉积在吸收腔隙中。从这个观察时间起，牙周膜也发生了偶然的强直，但长期组中没有增加。
A histometric method was applied for evaluation of root resorption in 57 experimentally replanted teeth and 22 controls. Representative axiobuccolingual sections were selected for measurement of resorptions at a magnification of x 40. The frequency of root resorption in the control teeth was low. In replanted teeth marked resorptive activity elicited by the trauma appeared after 2 wk. The extent of active resorptions increased until the third postoperative week. On an average 14% of the root periphery was affected at this stage. After the sixth postoperative week progressive cement deposition took place in the resorption lacunae. Incidental ankylosis of the periodontal membrane also occurred from this observation time but there was no increase among the long-term groups.