“…Interproximal wear should be given priority when aiming at conservative treatment 2 , 30 with minor changes in a pleasant profile, 2 , 23 , 30 in Class I cases, 2 , 9 , 23 , 24 , 30 cases without mandibular dental excess (Bolton ≤ 3 mm), 15 , 16 mild to moderate mandibular crowding, 2 , 16 , 23 , 24 , 30 , 31 normal overjet and overbite, low incidence of caries, 2 proper oral hygiene, 31 teeth with a triangular shape, 2 , 31 potential for maxillary wear, and treatment confirmed by set-up model tests. 1 , 5 , 13 , 14 , 18 , 19 …”