Orthodontic and prosthetic treatment of a patient with cystic fibrosis and agenesis of maxillary lateral incisors.

The young dental patient with maxillary lateral incisor agenesis, maxillary canine impaction, and cystic fibrosis presents considerable challenges to the dentist. An interdisciplinary approach is described here for the orthodontist and restorative dentist to plan and work together with the patient's and parents' cooperation and consent. Despite some compromises, a successful outcome was achieved, as demonstrated in this case report. The use of conservative yet esthetic and durable fixed replacement prostheses is highlighted. Congenitally absent maxillary lateral incisors, impacted maxillary canines, and cystic fibrosis are clinical conditions that can significantly complicate and compromise dental treatment for any young patient. All three can be present simultaneously, as described in this case report.