The Association of External and Middle Ear Anomaly and Mandibular Morphology in Congenital Microtia

Objective: To investigate the relationship between the severity of ear anomaly and mandibular dysplasia in congenital microtia. Study Design: Retrospective case review. Setting: Sapporo Medical University Hospital. Patients: Congenital microtia: 44 patients over a period of 4 years. Interventions: The height of the condylar process of the mandible was assessed by three-dimensional computed tomography (CT), and the patients were divided into three groups based on the ratio of the condylar process height on the affected side to that on the unaffected side: Group A, ≥1.00; Group B, 0.99 to 0.85; Group C,

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