CLINICAL CASE: Class I malocclusion with anterior crossbite and severe crowding

This article reports the orthodontic diagnosis and treatment planning carried out with a 14-year and 5-month-old female patient with esthetic and functional complaints.

She presented an Angle Class I malocclusion, anterior crossbite and severe crowding in both maxillary and mandibular arches, in addition to a lightly concave straight facial profile.

Orthodontic treatment did not require extraction. Crossbite was corrected by protrusion of upper teeth, which contributed to alignment and leveling of teeth, in addition to improving the patient's facial profile. 

The case was presented to the Brazilian Board of Orthodontics and Dentofacial Orthopedics (BBO) as a requirement for the BBO certification.

A 14-year and 5-month-old patient, in good health, with controlled allergic rhinitis, showed up for her first appointment. Her mother reported that the patient fell when she was eight years old, and fractured the incisal edge of tooth #41.

At that point, the tooth was partially restored and remained as so with neither apical radiolucency nor sensibility until her first orthodontic appointment. 

The patient avoided smiling and showing her teeth while talking. Her major complaints comprised lack of space in both maxillary and mandibular arches and anterior crossbite. The patient reported the following: "I am embarrassed of smiling.