integrated three-dimensional digital assessment of accuracy of anterior tooth movement using clear aligners

被引:47
|
作者
Zhang, Xiao-Juan [1 ,2 ]
He, Li [3 ]
Guo, Hong-Ming [1 ]
Tian, Jie
Bai, Yu-Xing [1 ]
Li, Song [1 ]
机构
[1] Capital Med Univ, Sch Stomatol, Dept Orthodont, Beijing, Peoples R China
[2] Capital Med Univ, Luhe Hosp China, Dept Orthodont, Beijing, Peoples R China
[3] Yanan Univ, Affiliated Hosp, Dept Orthodont, Yanan, Peoples R China
基金
北京市自然科学基金;
关键词
Clear aligners; Registration; Cone-beam computed tomography; APICAL ROOT RESORPTION; ORTHODONTIC TREATMENT; INVISALIGN; EFFICACY;
D O I
10.4041/kjod.2015.45.6.275
中图分类号
R78 [口腔科学];
学科分类号
1003 ;
摘要
Objective: To assess the accuracy of anterior tooth movement using clear aligners in integrated three-dimensional digital models. Methods: Cone-beam computed tomography was performed before and after treatment with clear aligners in 32 patients. Plaster casts were laser-scanned for virtual setup and aligner fabrication. Differences in predicted and achieved root and crown positions of anterior teeth were compared on superimposed maxillofacial digital images and virtual models and analyzed by Student's t-test. Results: The mean discrepancies in maxillary and mandibular crown positions were 0.376 +/- 0.041 mm and 0.398 +/- 0.037 mm, respectively. Maxillary and mandibular root positions differed by 2.062 +/- 0.128 mm and 1.941 +/- 0.154 mm, respectively. Conclusions: Crowns but not roots of anterior teeth can be moved to designated positions using clear anglers, because these appliances cause tooth movement by tilting motion.
引用
收藏
页码:275 / 281
页数:7
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