Efficiency of upper arch expansion with the Invisalign system.

Efficiency of upper arch expansion with the Invisalign system. Angle Orthod. 2019 Aug 01;: Authors: Zhou N, Guo J Abstract OBJECTIVES: To investigate the efficiency and movement pattern of upper arch expansion using Invisalign aligners. The correlation between the amount of designed expansion and the efficiency of bodily expansion was evaluated, as were the initial molar torque and efficiency of bodily expansion. MATERIALS AND METHODS: Twenty Chinese adult patients who underwent arch expansion with Invisalign aligners were included in this study. Records of pretreatment (T0 stage) and immediately after completing the expansion phase (T1 stage) were collected, including digital models and cone-beam computed tomography. Dolphin 3D, Geomagic Studio 12.0, and Meazure software were employed to measure data and calculate differences between the expected and actual outcomes. RESULTS: There were significant differences between the expected and actual expansion amounts (P
Source: The Angle Orthodontist - Category: Dentistry Authors: Tags: Angle Orthod Source Type: research

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