Mandibular asymmetry treated with a modified activator appliance.
Aplasia of the mandibular condyle alone without any other facial malformation and medical history is a very rare condition. This clinical report describes treatment with a functional appliance in a young patient with aplasia of the mandibular condyle alone without any other facial malformation, which is a very rare condition. The patient, a 6(1/2)-year-old girl, was referred for treatment of mandibular asymmetry. There was no relevant family history. The patient showed early mixed dentition with a II molar relationship on the right and II on the left side, 5 mm of overbite and 5 mm of overjet, and a lower midline discrepancy of 3 mm. According to the Pruzansky-Kaban classification of mandibular deformity, the patient was a type IIA; according to Vento and his classification, the mandible of the patient was M2B. The patient was given a Haupl-Andresen activator, which had been modified to reposition the right mandible downward and forward. The functional appliance therapy lasted for approximately 4 years. The affected side showed remarkable condylar growth compared with the normal side. Seven years later, the correction of the mandibular asymmetry was stable and no relapse had occurred.
Leonardi
Rosalia
R
Orthodontics, University of Catania, Catania, Italy. rleonard@unict.it
Barbato
Ersilia
E
D000202:Activator Appliances; D002648:Child; D005146:Facial Asymmetry / Q000628:therapy*; D005260:Female; D006801:Humans; D008312:Malocclusion, Angle Class II / Q000628:therapy; D008335:Mandibular Condyle / Q000002:abnormalities* / Q000000981:diagnostic imaging / Q000254:growth & development; D011859:Radiography; D016896:Treatment Outcome