[Agenesis of the upper lateral incisor: orthodontic therapy and replacement].

In this paper the Authors outline an uneven prevalence of superior lateral incisors agenesis. The treatment of this situation can be accomplished by various methods. It is possible to obtain the complete closure of dental spaces or maintain the physiological space. The Authors present four cases of young patients in which they decided to maintain orthodontically the space and to put them adhesive bridges.