Coronoid process hyperplasia: an unusual case report
DOI:
https://doi.org/10.52076/eacad-v3i2.154Keywords:
Hyperplasia; Coronoid process; Mandible; Health teaching.Abstract
Mouth-opening limitation can be caused by several disorders, most of which are associated with the temporomandibular joint (TMJ). However, other structures may also be involved. Coronoid process hyperplasia (CPH) is characterized by excessive growth of the coronoid process and is a rare, painless, usually bilateral, progressive condition that affects mainly men. This article presents the case of a 15-year-old male with CPH on only the right side. The patient reported that he had had limited mouth opening for about 2 years, with frequent pain. This condition affected his daily activities, which directly affected his quality of life. At the first appointment, we observed limited mouth opening (15 mm), deviated mouth opening to the right side, and restricted left lateral excursion movement (2 mm). The first clinical diagnosis was disc displacement without reduction, with limited mouth opening in the right TMJ. However, the patient’s condition did not improve after treatment; therefore, imaging examinations were requested. Imaging revealed anterolateral elongation of the right coronoid process. We performed an intraoral coronoidectomy during which the patient achieved a mouth opening of 40 mm. The patient underwent physical therapy and follow-up care with a specialist in temporomandibular disorders and orofacial pain to improve mouth opening, reduce painful symptoms, and improve quality of life. Thus, a differential diagnosis for an accurate diagnosis and subsequent effective treatment strategies is significant.
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Copyright (c) 2022 Thiago Carvalho de Souza; Rodrigo Antonio Medeiros; Alexia Guimarães Ramos; Rodrigo Wendel dos Santos; Jamile Souza Aguiar; Frederico Felipe Antonio de Oliveira Nascimento; Ricardo de Pádua Coelho; José William Santos de Oliveira Pinto
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