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Condylar and occlusal changes after high condylectomy and orthodontic treatment for condylar hyperplasia

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Summary

Condylar hyperplasia (CH) of human temporomandibular joint (TMJ) often occurs unilaterally, and causes occlusal disturbance and facial asymmetry. The purpose of this study was to compare the effects of high condylectomy with and without postsurgical orthodontic treatment. Forty patients were diagnosed as having active CH and treated with high condylectomy. Patients in group A (n=24) took the postsurgical orthodontic therapy immediately after surgery, and those in group B (n=16) did not take orthodontic therapy. For both groups, the mandibular ramus height on the affected side was decreased significantly after surgery. Orthodontic treatment promoted maxillary alveolar remodeling significantly by depressing alveolar bone of the affected side and increasing alveolar bone of the nonaffected side. Better improvement for facial midline deviations was observed in group A than in group B. In both groups, the condylar remodeling was observed and manifested by the smoothening of condylar surface and returning of condyle to normal position in glenoid fossa. It was concluded that high condylectomy in the treatment of active CH of TMJ improved the functional occlusion and facial aesthetic. Postsurgical orthodontic therapy could more effectively enhance maxillary alveolar and condylar remodeling, and more rapidly and meticulously establish the stable occlusal and normal position of condyle than the spontaneous remodeling.

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Authors and Affiliations

  1. Department of Oral and Maxillofacial Surgery, the State Key Laboratory of Breeding Base of Basic Science of Stomatology & Key Laboratory of Oral Biomedicine of Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, 430079, China

    Loaye A. El.mozen, Qing-gong Meng  (孟庆功), Ying-jie Li  (**颖杰), **ng Long  (龙 星) & Guo-xin Chen  (陈国新)

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  1. Loaye A. El.mozen
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  2. Qing-gong Meng  (孟庆功)
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  3. Ying-jie Li  (**颖杰)
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  4. **ng Long  (龙 星)
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  5. Guo-xin Chen  (陈国新)
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Correspondence to **ng Long  (龙 星) or Guo-xin Chen  (陈国新).

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El.mozen, L.A., Meng, Qg., Li, Yj. et al. Condylar and occlusal changes after high condylectomy and orthodontic treatment for condylar hyperplasia. J. Huazhong Univ. Sci. Technol. [Med. Sci.] 35, 265–270 (2015). https://doi.org/10.1007/s11596-015-1422-5

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  • DOI: https://doi.org/10.1007/s11596-015-1422-5

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