Adolescents with congenitally missing lateral incisors require an interim space maintainer to restore function and esthetics before craniofacial growth is complete and an endosseous implant can be placed. This article presents 2 patients, each with a missing lateral incisor, who underwent orthodontic therapy. A chairside, prefabricated fiber-reinforced composite bridge was used as a fixed space maintainer after the appliances were removed.