Fig. 2

Images of three-dimensional digital simulations were used as references (frontal view). a + 1.5 mm, labial movement with 1.5 mm. b + 1.0 mm, labial movement with 1.0 mm. c + 0.5 mm, labial movement with 0.5 mm. d 0 mm, control group. e − 0.5 mm, lingual movement with 0.5 mm. f − 1.0 mm, lingual movement with 1.0 mm. g − 1.5 mm, lingual movement with 1.5 mm