Corrección de una transposición completa bilateral de canino y primer premolar superior con apiñamiento severo

Abstract

Introduction: Dental transposition is a difficult anomaly to be treated in the orthodontic practice. It can be defined as a position exchange of two adjacent teeth in the dental arch. Objective: To correct the transposition between upper canines and first premolars, eliminating the severe upper and lower crowding, and correcting overjet and overbite. Case presentation: A 15-year-old male patient came to the orthodontics clinic showing a dolichofacial skeletal Class II, molar class I, and non-established canine class; a complete bilateral transposition of the upper canine-first premolar and severe upper and lower crowding. The upper and lower first premolars were extracted, and fixed metal appliances were bonded (MBT slot 0.022"). Open coils between upper second premolars and canines were used to mesialize the canines to obtain a Class I relationship. The canines were moved to a class I relationship; correct overbite and overjet were achieved and crowding was eliminated giving a functional occlusion. Conclusion: An accurate diagnosis and treatment plan makes it possible to provide a stable and functional occlusion to patients.