Volumetric evaluation of root resorption in single and double slots lingual orthodontic appliances by aid of Cone Beam Computed Tomography and VR Mesh(A comparative study).

niversity of Sulaimani /College of Dentistry0 个研究点目标入组 36 人开始时间: 2020年4月20日最近更新: 2020年4月27日

适应症

试验速览

暂无简介。

•1.Adult patients of ages between 18-25 with Angle Class I or half cusp class II molar relation-ship, class II incisor relationship with upper anterior crowding (5-7 mm) that need two first premolar extraction.
•2.Not require change in the posterior relationship.
•3.No need for arch expansion or molar distalization.
•4.Normal lower dental arch without dental irregularities.

•1.Subjects with previous evidence of root resorption.
•2.Total cusp class II or class III molar relationship.
•3.Overjet greater than (6mm).
•4.History of trauma or impacted canines.
•5.Previous orthodontic treatment.
•6.Systemic diseases on medication and pregnant women.
•7.Patients with poor oral hygiene, endodonticly treated tooth and / or dental anomalies of a number of teeth.
•the two premolar extraction planed to create space for mal aligned teeth.

发起方

niversity of Sulaimani /College of Dentistry