this article will discuss the following procedures which may be useful in the correction of discrepancies in anterior interocclusal arch length : ( 1 ) repositioning of upright maxillary incisors to increase upper dental arch length , ( 2 ) mesiodistal enamel reduction to reduce mandibular dental arch length , promote stability , and improve gingival conditions , and ( 3 ) treatment of three-mandibular-incisor cases to decrease mandibular dental arch length , allow correction of crowded mandibular anterior teeth , and reduce protrusion of the lower anterior teeth .
C0011350
enamel
C0040426
teeth