Three dimensional movement analysis of maxillary impacted canine using TADs: a pilot study.
Three dimensional movement analysis of maxillary impacted canine using TADs: a pilot study.
复制标题
DOI：
10.1186/s13005-020-00252-0
复制
发表时间：
2021-01-15
影响因子：
3
通讯作者：
Biavati AS
中科院分区：
文献类型：
--
作者：
Migliorati M;Cevidanes L;Sinfonico G;Drago S;Dalessandri D;Isola G;Biavati AS
本研究的目的是比较两种不同的支抗系统去除上颌阻生尖牙的效率，作为评估工具，叠加锥束计算机断层扫描(CBCTs)。按1：1的分配比例分为两组，试验组采用微型螺钉作为支抗，对照组采用经腭弓(TPA)支抗。两组患者均接受50 g的校正牵引力，在治疗前和牵引后3 月进行CBCT扫描，以毫米/月的比率评价尖牙尖端和牙根的移动情况。两组间在根尖移位、尖端移位和观察时间上无差异。22例(女性12例，男性10例，平均年龄13.4 岁)上颌埋伏尖牙正畸治疗患者为本研究对象。两组间在根尖移位、尖端移位和观察时间上无差异。目前的初步研究没有提供证据表明，在迷你机组上间接锚定可以使犬牙比在TPA上锚定时更快地消失。尖牙根尖平均移动1.08 mm~1.96 mm，平均每月根尖移动0.4~0.8 mm。没有观察到迷你机组的失败。这项研究报告了随机临床试验的初步结果，注册地址为www.register.Clinicaltrials.gov(注册号：NCT01717417)。
The aim of the present study was to compare two different anchorage systems efficiency to disinclude impacted maxillary canines using as evaluation tool superimposed Cone Beam Computed Tomography (CBCTs). The study has been conducted with two parallel groups with an allocation ratio of 1:1. Group test received treatment using as anchorage a miniscrew, control group was treated using an anchorage unit a trans palatal arch (TPA). Both groups received a calibrated traction force of 50 g. CBCT before treatment and 3 months after traction were superimposed and canine tip and root movement were evaluated in mm/month ratio. No differences were observed between groups for apex displacement, tip displacement and observation timespan. Twenty-two patients (12 female, 10 male, mean age:13.4 years) undergoing orthodontic treatment for impacted maxillary canines were recruited for this study. No differences were observed between groups for apex displacement, tip displacement and observation timespan. The present pilot study provided no evidence that indirect anchorage on miniscrews could make canine disimpaction faster than anchorage on a TPA. An apex root movement of 0.4–0.8 mm per month was found, while average canine tip movement ranged between 1.08 mm and 1.96 mm per month. No miniscrews failures were observed. The study reports the preliminary results of the randomized clinical trial registered at www.register.clinicaltrials.gov (registration number: NCT01717417).
登录
查看更多内容
影响因子：
3.7
作者：
Gkantidis N;Schauseil M;Pazera P;Zorkun B;Katsaros C;Ludwig B
通讯作者：
Ludwig B
DOI：
10.1016/j.ajodo.2015.09.026
发表时间：
2016-04
期刊：
American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics
影响因子：
--
作者：
Ruellas AC;Huanca Ghislanzoni LT;Gomes MR;Danesi C;Lione R;Nguyen T;McNamara JA Jr;Cozza P;Franchi L;Cevidanes LH
通讯作者：
Cevidanes LH
影响因子：
2.6
作者：
Bizzarro, Maria;Generali, Chiara;Perillo, Letizia
通讯作者：
Perillo, Letizia
影响因子：
2.6
作者：
Schubert, Michael;Proff, Peter;Kirschneck, Christian
通讯作者：
Kirschneck, Christian
影响因子：
--
作者：
Mir, Arash Poorsattar-Bejeh;Haghanifar, Sina;Rahmati-Kamel, Manoucher
通讯作者：
Rahmati-Kamel, Manoucher