Journal of Oral Medicine and Pain

Korean Academy of Orofacial Pain and Oral Medicine (대한안면통증구강내과학회)
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A Large Subchondral Cyst in an Osteoarthritic Temporomandibular Joint: A Case Report

  • Jeon, Hye-Mi (Dental Clinic Center, Pusan National University Hospital) ;
  • Ahn, Yong-Woo (Department of Oral Medicine, Pusan National University Dental Hospital, Dental Research Institute) ;
  • Ok, Soo-Min (Department of Oral Medicine, Pusan National University Dental Hospital, Dental Research Institute) ;
  • Ju, Hye-Min (Department of Oral Medicine, Pusan National University Dental Hospital, Dental Research Institute) ;
  • Jung, Kyung-Hwa (Dental Clinic Center, Pusan National University Hospital) ;
  • Kwon, Eun-Young (Dental Clinic Center, Pusan National University Hospital) ;
  • Jeong, Sung-Hee (Department of Oral Medicine, Pusan National University Dental Hospital, Dental Research Institute)
  • Received : 2022.02.09
  • Accepted : 2022.03.04
  • Published : 2022.03.30
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Abstract

Subchondral cysts are frequently encountered in patients with temporomandibular joint osteoarthritis (TMJ OA), particularly in advanced stage. Subchondral cysts within osteoarthritis are typically lying adjacent to the joint surface where initial load bearing occurs during activity and have been associated with greater pain and disease progression. Although the etiology of these cysts remains uncertain, recently studies report that the induction of the subchondral bone mechanical stress caused subchondral cysts. Repeated overloading leads to further deterioration of subchondral bone which render subchondral bone structure more fragile, increase the risk of osteoarthritis progress. The purpose of this study was to assess the effect of conservative treatment and longitudinal osseous changes of a large subchondral cyst in a mandibular condyle in a symptomatic TMJ OA patient.

Keywords

Acknowledgement

This study was supported by a Clinical Research Grant from Pusan National University Hospital (2021).

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