Class III Dental & Class II Skeletal Bilateral Crossbite

J.B. is a healthy 11-year, 11-month-old female. She presented to my office with a chief complaint of “I don’t like the space between my front teeth”. Her medical history is negative. She has no known allergies, medications, or previous hospitalizations.

Clinical

J.B. has her adult dentition in except the third molars which are in the early stages of development. She has a Class III malocclusion on the right and on the left. She has 1mm of overbite. She has an overjet of 3mm. Upon occluding, J.B. has a mandibular shift. This and the fact her arches are symmetrical indicate a bilateral crossbite. There is significant inter-arch spacing in both arches. The patient’s airway is slightly constricted with adenoid tissue that is enlarged. She also has a high palatal vault. It was recommended that the patient see an ENT for an evaluation, but the parent declined. She has no known oral habits. (Figs.1a – f)