Fig. 2From: The three-dimensional displacement tendency of teeth depending on incisor torque compensation with clear aligners of different thicknesses in cases of extraction: a finite element studythe displacement tendency of the maxillary dentition. a without torque compensation-0.5 mm-thick aligner; b without torque compensation − 0.75 mm-thick aligner; c with torque compensation-0.5 mm-thick aligner; d with torque compensation-0.75 mm-thick aligner. Arrows indicate the direction of tooth movement;the colder the tone, the less the tendency for tooth movement; the warmer the tone, the less the tendency for tooth movement. The 0.75 mm-thick aligner produced more significant distal tipping tendency for central incisorsBack to article page