Initial condition:
Congenital absence of the upper lateral incisors
(teeth 1.2 and 2.2).
Canines (1.3 and 2.3) occupying the position of the missing lateral incisors.
First premolars positioned in place of the canines, along with a discolored direct composite restoration on the upper central incisor.
Need for canine-to-lateral-incisor and premolar-to-canine morphological transformation.