Aljehani Dareen, Baeshen Hosam Ali
Department of Orthodontics, Albatarje College, Jeddah Kingdom of Saudi Arabia.
Department of Orthodontics, Faculty of Dentistry, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia Al-Farabi Private Dental and Nursing College, Jeddah, Kingdom of Saudi Arabia, Phone: +96626403443, e-mail:
J Contemp Dent Pract. 2018 Jun 1;19(6):647-650.
This study was aimed to explore the effect of pretreatment severity of malocclusion on the duration of the treatment using The American Board of Orthodontics discrepancy index (ABO-DI).
This clinical retrospective study consisted of orthodontics records of 37 patients who were treated with comprehensive fixed orthodontic appliance from 2011 to 2013. The sample of the study was collected so as to exclude, to the maximum possible, the patient cooperation variability by reviewing all patient chart entries. The DI measurements were used to gather the information of the pretreatment and relate it to the time duration of the treatment. Statistical analyses were performed using the chi-square test and Pearson correlation coefficient.
The average treatment time was 24.5 months. The DI scores mean for class I and II was 14.30 and 20.15 respectively. Age and sex did not significantly influence the treatment duration (p > 0.05).
The results of this study showed that the ABO-DI could be a useful tool to predict orthodontic treatment time.
The ABO-DI can significantly aid in orthodontic treatment time planning.
本研究旨在使用美国正畸委员会差异指数（ABO-DI）探讨错牙合畸形预处理严重程度对治疗疗程的影响。
本临床回顾性研究纳入了2011年至2013年期间接受综合固定正畸矫治器治疗的37例患者的正畸记录。通过查阅所有患者病历记录，尽可能排除患者合作差异因素来收集研究样本。使用DI测量来收集预处理信息，并将其与治疗时间相关联。采用卡方检验和Pearson相关系数进行统计分析。
平均治疗时间为24.5个月。I类和II类的DI评分均值分别为14.30和20.15。年龄和性别对治疗疗程无显著影响（p>0.05）。
本研究结果表明，ABO-DI可作为预测正畸治疗时间的有用工具。
ABO-DI可显著辅助正畸治疗时间规划。
