Predicting and preventing root resorption: Part I. Diagnostic factors
Predicting and preventing root resorption: Part I. Diagnostic factors
复制标题
DOI：
10.1067/mod.2001.113409
复制
发表时间：
2001-05-01
影响因子：
3
通讯作者：
Sinclair, PM
中科院分区：
文献类型：
--
作者：
Sameshima, GT;Sinclair, PM
本研究的目的是确定是否有可能确定治疗前因素，使临床医生能够在正畸治疗开始之前预测牙根吸收的发生率、位置和严重程度。从 6 个私人办公室获得了 868 名接受完整固定边缘矫治器治疗的患者的记录；使用全口根尖周X光片来准确评估两个牙弓从第一磨牙到第一磨牙的根尖吸收。结果显示，吸收主要发生在上颌前牙，平均超过1.4毫米。最严重的吸收出现在上颌侧切牙和牙根形状异常（移液状、尖状或撕裂状）的牙齿中。仅在下颌前段，成人患者比儿童经历更多的吸收。研究发现，亚洲患者的牙根吸收明显少于白人或西班牙裔患者。覆牙合增加（但覆牙合不增加）与牙根吸收增加显着相关。男性和女性患者牙根吸收的发生率或严重程度没有差异。
The purpose of this study was to determine whether it would be possible to identify pretreatment factors that will allow the clinician to predict the incidence, location, and severity of root resorption before the commencement of orthodontic treatment. The records of 868 patients who were treated with full, fixed edgewise appliances were obtained from 6 private offices; full-mouth periapical radiographs were used to accurately assess apical root resorption from first molar to first molar in both arches. The results showed that resorption occurs primarily in the maxillary anterior teeth, averaging over 1.4 mm. The worst resorption was seen in maxillary lateral incisors and in teeth with abnormal root shape (pipette, pointed, or dilacerated). Adult patients experienced more resorption than children did in the mandibular anterior segment only. Asian patients were found to experience significantly less root resorption than white or Hispanic patients. Increased overjet, but not overbite, was significantly associated with greater root resorption. There was no difference in either the incidence or severity of root resorption between male and female patients.