CAJ | 학술논문

目的：本研究使用三维影像CBCT进行评价旨在提高正畸治疗中牙根吸收的精确性。方法：选取进行正畸拔牙治疗的患者10例，并在治疗前和治疗12个月分别拍摄CBCT，测量治疗前后上颌6个牙齿的长度（双侧中切牙、侧切牙和尖牙），计算得出牙根吸收的数值。结果：所有测量牙齿治疗前后牙根长度比较均有统计学意义（P<0.05）。牙吸收量最大为上颌侧切，左右侧分别为：1.13 mm和1.14 mm；其次为上颌双侧中切牙，左右侧分别为：0.97 mm和0.96 mm；上颌双侧尖牙吸收最少，左右侧分别为0.87 mm和0.95 mm。结论：（1）结果显示正畸拔牙矫正患者治疗中有一个明显的牙根吸收。（2）本研究证实使用CBCT评价牙根吸收是一个有效而且精确的方法。
목적：본연구사용삼유영상CBCT진행평개지재제고정기치료중아근흡수적정학성。방법：선취진행정기발아치료적환자10례，병재치료전화치료12개월분별박섭CBCT，측량치료전후상합6개아치적장도（쌍측중절아、측절아화첨아），계산득출아근흡수적수치。결과：소유측량아치치료전후아근장도비교균유통계학의의（P<0.05）。아흡수량최대위상합측절，좌우측분별위：1.13 mm화1.14 mm；기차위상합쌍측중절아，좌우측분별위：0.97 mm화0.96 mm；상합쌍측첨아흡수최소，좌우측분별위0.87 mm화0.95 mm。결론：（1）결과현시정기발아교정환자치료중유일개명현적아근흡수。（2）본연구증실사용CBCT평개아근흡수시일개유효이차정학적방법。
To evaluate the correlations between root resorption during orthodontic treatment using cone-beam computed tomography(CBCT).Method:10 patients who treated for orthodontic tooth were selected, and measured the root resorption around six teeth(bilateral maxillary central incisors,lateral incisors,and canines) by using CBCT,before orthodontic treatment and after 12 months treatment,the correlation was calculated between root resorption.Result:The length of all measuring tooth root were compared before and after treatment,and the differences were statistically significant(P<0.05). The root resorption was largest in the maxillary lateral incisors, the left and right lateral incisors were 1.13 mm and 1.14 mm respectively;followed by the maxillary central incisors, the left and right central incisors were 0.97 mm and 0.96 mm;and then was the maxillary canines,the left and right canines were 0.87 mm and 0.95 mm.Conclusion:(1)The patients have an obvious root absorption in the treatment of orthodontic tooth orthodontic.(2)This study has demonstrated that CBCT is a useful approach for evaluating apical root resorption after orthodontic treatment.