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Histological changes in the temporomandiular joint in rabbits depending on the extent of mandibular lengthening by osteodistraction

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Authors
Park, Joo-Cheol; Kim, Su-Gwan; Ha, Jeong-Wan
Issue Date
2004-12
Publisher
Elsevier
Citation
British Journal of Oral and Maxillofacial Surgery 2004;42:559-565
Keywords
temporomandibular jointmandibular lengtheningosteodistraction
Abstract
We studied the histological changes in the temporomandibular joint (TMJ) after unilateral mandibular distraction osteogenesis in rabbits. Eight rabbits were used, two of which served as controls and the other six had distraction of the left mandibular body after a latency period of 7 days at a rate of 0.5 mm a day for a total of 2 mm (n = 2), 3.5 mm (n = 2), and 5 mm (n = 2) of distraction. After a 14-day consolidation period, TMJs from both sides were harvested and prepared for histological examination under an optical microscope using haematoxylin and eosin stain. We found no degenerative or inflammatory changes in either TMJ in any of the groups. Endochondral ossification in the condyle was greater on the opposite side in the experimental group than in the condyles of the control group. Endochondral ossification was active in the 3.5-mm group.
We studied the histological changes in the temporomandibular joint
(TMJ) after unilateral mandibular distraction osteogenesis in rabbits. Eight rabbits
were used, two of which served as controls and the other six had distraction of the
left mandibular body after a latency period of 7 days at a rate of 0.5mm a day for
a total of 2mm (n = 2), 3.5mm (n = 2), and 5mm (n = 2) of distraction. After a
14-day consolidation period, TMJs from both sides were harvested and prepared for
histological examination under an optical microscope using haematoxylin and eosin
stain. We found no degenerative or inflammatory changes in either TMJ in any of the
groups. Endochondral ossification in the condyle was greater on the opposite side
in the experimental group than in the condyles of the control group. Endochondral
ossification was active in the 3.5-mm group.
ISSN
0266-4356
Language
English
URI
http://hdl.handle.net/10371/68969
DOI
https://doi.org/10.1016/j.bjoms2004.06.018
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College of Dentistry/School of Dentistry (치과대학/치의학대학원)Dept. of Dentistry (치의학과)Journal Papers (저널논문_치의학과)
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