論文

2022年1月2日

Improvement of anterior disc displacement on the mandibular deviated side after intraoral vertical ramus osteotomy in a patient with facial asymmetry: a case report

Clinical and Investigative Orthodontics
  • Hirotaka Ueda
  • ,
  • Naoki Oka
  • ,
  • Tsuyoshi Shimo
  • ,
  • Akira Sasaki
  • ,
  • Takashi Yamashiro
  • ,
  • Hiroshi Kamioka

81
1
開始ページ
58
終了ページ
67
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1080/27705781.2022.2044700
出版者・発行元
Informa UK Limited

Purpose We present the orthognathic treatment of an adult skeletal Class III patient with facial asymmetry, mandibular rightward deviation, and anterior disc displacement without reduction (ADDwoR) at the right temporomandibular joint (TMJ) by intraoral vertical ramus osteotomy (IVRO). Materials and methods The patient was a 23-year-old man with complaints of mandibular deviation and crowded lower anterior teeth, resulting in facial asymmetry. The maxillary position was normal with protrusion and rightward deviation of the mandible. There was no cant of the maxilla. He experienced pain in the right TMJ during mastication, and Magnetic resonance imaging (MRI) revealed an ADDwoR on the right side. The patient was diagnosed with Class III malocclusion, skeletal Class III prognathism with mandibular deviation, and ADDwoR on the right side. Orthognathic surgery was proposed for jaw deformity, and IVRO was performed to correct mandibular deviation. Results One year and 2 months after treatment onset, IVRO was performed with differential setback: 2 mm on the right and 8 mm on the left side of the mandible. The midline of the lower dentition was rotated by 6 mm to coincide with the facial midline. Symptoms of temporomandibular disorders were not observed post-operatively. Active-treatment period was for 31 months. MRI findings showed improvement in anterior disc displacement on the right side during the post-retention. Conclusion In the case of facial asymmetry with anterior disc displacement on the mandibular deviated side, IVRO was suggested to have a potential effect on the positional relationship between the mandibular head and temporomandibular disc.

リンク情報
DOI
https://doi.org/10.1080/27705781.2022.2044700
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000817157900008&DestApp=WOS_CPL
URL
https://www.tandfonline.com/doi/pdf/10.1080/27705781.2022.2044700
ID情報
  • DOI : 10.1080/27705781.2022.2044700
  • ISSN : 2770-5781
  • eISSN : 2770-579X
  • Web of Science ID : WOS:000817157900008

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