Journal of Korean Dental Science

Korean Academy of Dental Science (대한치의학회)
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Mandibular Ramus Osteochondroma-A Rare Cause of Chronic Mouth Opening Limitation: A Case Report

  • Chan-Woo Song (Department of Oral Medicine, Wonkwang Sanbon Dental Hospital) ;
  • Hye-Kyoung Kim (Department of Orofacial Pain and Oral Medicine, College of Dentistry, Dankook University)
  • Received : 2024.07.08
  • Accepted : 2024.08.07
  • Published : 2024.09.30
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Abstract

Osteochondroma, the most common benign bone tumor, rarely occurs in the craniofacial region. This case report presents a sporadic osteochondroma found in the posterior mandibular ramus of a 56-year-old woman, resulting in chronic restricted mouth opening and facial asymmetry persisted over 20 years. Clinical and radiographic examinations, including panoramic and cone-beam computed tomography, revealed a large radiopaque mass causing mechanical locking. Surgical excision of the mass resolved the symptoms without recurrence for 5.5 years. This case underscores the importance of considering osteochondromas in the differential diagnosis of temporomandibular disorders with restricted mouth opening. It emphasizes the necessity for thorough clinical evaluation and careful radiographic interpretation of extraoral findings.

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References

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