Hyperchondylosis, or condylar hyperplasia, is a disorder characterized by increased growth of the mandibular condyles, resulting from a breakdown in growth control, probably due to derangement of local retro-action loops between different histological layers that could have permitted continuing multiplication of pre-chondroblastic cells.
Clinically, patients show typically unattractive, asymmetrical faces, with mandibles deformed in shape and occlusion and with tilted occlusal planes. But when we see our young patients in our offices, the disorder is usually just beginning and the signs are not yet pathognonomic, making a diagnosis of hypercondylosis difficult. And, treatment of patients with this disorder whose malady while active has not been diagnosed is doomed to failure.
Scintigraphy is an excellent method for studying bone activity that allows the practitioner to evaluate the rate of growth and the cartilaginous activity of mandibular condyles. With precise information in hand, practitioners can begin treatment in these cases more promptly than would otherwise have been possible and will be able to limit surgical interventions to condylectomies carried out in harmony with and in association with orthodontic treatment thus allowing the inter-disciplinary team to achieve the desired esthetic and functional results.