da Silva Filho Omar Gabriel, Mendes Olívia de Freitas, Ozawa Terumi Okada, Ferrari Junior Flávio Mauro, Correa Tatiana Mattosinho
Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo, Bauru, Brazil.
J Clin Pediatr Dent. 2004 Winter;28(2):147-54. doi: 10.17796/jcpd.28.2.56n643558770p763.
The occurrence of root resorption in orthodontically treated permanent incisors with partially formed roots was investigated using periapical radiographs taken before and after the orthodontic leveling in the mixed dentition. The mean age at the beginning of treatment was 9 years and the mean treatment time was 7.1 months. The findings showed that the orthodontic movement during root formation causes no root resorption. The longitudinal follow-up showed that incompletely formed roots developed normally.
利用混合牙列期正畸排齐前后拍摄的根尖片，对牙根部分形成的正畸治疗恒牙切牙牙根吸收的发生情况进行了研究。治疗开始时的平均年龄为9岁，平均治疗时间为7.1个月。研究结果表明，牙根形成过程中的正畸移动不会导致牙根吸收。纵向随访显示，未完全形成的牙根发育正常。
