Paulsen H U, Shi X Q, Welander U, Huggare J, Scheutz F
Karolinska Institutet Stockholm, Sweden.
Am J Orthod Dentofacial Orthop. 2001 Apr;119(4):338-45. doi: 10.1067/mod.2001.114686.
Eruption patterns and root growth were visualized with the use of a new technique, radiographic color-coding, for comparison of the development of autotransplanted premolars with contralateral control teeth. Rates of eruption and root growth were studied. The eruption pattern and rate was assessed relative to the first molar. Maximum rates were found to occur between 30 and 60 days after transplantation. There were no significant differences between transplants and their contralaterals. Two distinct categories of eruption patterns were demonstrated. One group showed a tendency toward an initial rate of transplant eruption that was somewhat faster than that of the contralaterals. The other group showed initially retarded eruption. Possible explanations were discussed. Because no significant differences between the transplants and the contralaterals were observed, it was concluded that autotransplantation is a sound treatment option for substitution of missing teeth, at least from a tooth development point of view.
使用一种新技术——放射照相颜色编码法，观察了牙齿萌出模式和牙根生长情况，以比较自体移植前磨牙与对侧对照牙的发育情况。研究了萌出率和牙根生长率。相对于第一磨牙评估了萌出模式和速率。发现最大速率出现在移植后30至60天之间。移植牙与其对侧对照牙之间无显著差异。展示了两种不同的萌出模式类别。一组显示移植牙的初始萌出速率倾向于比对侧对照牙稍快。另一组显示初始萌出延迟。讨论了可能的解释。由于未观察到移植牙与对侧对照牙之间的显著差异，得出结论：至少从牙齿发育的角度来看，自体移植是替代缺失牙的一种可靠治疗选择。
