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Fig. 2 | BMC Oral Health

Fig. 2

From: 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 study

Fig. 2

the 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 incisors

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