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  • Title: Reactive changes in the temporomandibular joint after mandibular midline osteodistraction.
    Author: Harper RP, Bell WH, Hinton RJ, Browne R, Cherkashin AM, Samchukov ML.
    Journal: Br J Oral Maxillofac Surg; 1997 Feb; 35(1):20-5. PubMed ID: 9042999.
    Abstract:
    The purpose of this study was to evaluate the histologic changes within the condyle in response to mandibular widening using osteodistraction. Mandibular midline osteotomies were made in nine Macaca mulatta monkeys and tooth-borne distraction devices were bonded to the mandibular dentition. Distraction was continued until a 3-5 mm widening was achieved. The appliances were then stabilized for a period of 4 weeks. Non-decalcified sagittal sections of the lateral, middle and medial thirds of the condyles were analyzed. Although three of the seven animals showed no unusual morphology, four others exhibited morphologic differences within the fibrous layer, cartilage layer or bone/cartilage interface. Histologic changes were seen to occur in the fibrous layer, cartilaginous layer and cartilage/bone interface. The severity of these changes were correlated with the likely rotational forces directed at the condyle on the postero-lateral and antero-medial surfaces.
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