Document Detail

Changes in the temporomandibular joint after mandibular lengthening with different rates of distraction.
MedLine Citation:
PMID:  12387614     Owner:  NLM     Status:  MEDLINE    
This study assessed the changes in the condyle after mandibular lengthening with 2 different rates of distraction (1 mm/day and 2 mm/day). Unilateral mandibular distraction was performed in 8 young adult goats. The animals were sacrificed 8 weeks after the completion of distraction, and the temporomandibular joint (TMJ) specimens were harvested and processed for histologic examination and histomorphometric analysis. Adaptive changes in the condyle were observed in the goats distracted at a rate of 1 mm/day, whereas degenerative alterations were found in those distracted at a rate of 2 mm/day. This study suggests that the TMJ is able to withstand the impact of distraction at a rate of 1 mm/day, but more rapid distraction may induce degeneration in the condylar cartilage.
S Zou; J Hu; D Wang; J Li; Z Tang
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The International journal of adult orthodontics and orthognathic surgery     Volume:  16     ISSN:  0742-1931     ISO Abbreviation:  Int J Adult Orthodon Orthognath Surg     Publication Date:  2001  
Date Detail:
Created Date:  2002-10-21     Completed Date:  2002-11-08     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  8610335     Medline TA:  Int J Adult Orthodon Orthognath Surg     Country:  United States    
Other Details:
Languages:  eng     Pagination:  221-5     Citation Subset:  D    
Department of Orthodontics, Huaxi School of Stomatology, Sichuan University, Chengdu, China.
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MeSH Terms
Bony Callus / pathology
Cartilage / pathology
Chi-Square Distribution
Chondrocytes / pathology
Coloring Agents / diagnostic use
Fluorescent Dyes / diagnostic use
Image Processing, Computer-Assisted
Mandible / surgery*
Mandibular Condyle / pathology
Models, Animal
Osteoblasts / pathology
Osteogenesis, Distraction*
Random Allocation
Statistics as Topic
Temporal Bone / pathology
Temporomandibular Joint / pathology*
Time Factors
Reg. No./Substance:
0/Coloring Agents; 0/Fluorescent Dyes; 9007-34-5/Collagen

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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