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Bifid mandibular canal: confirmation of limited cone beam computed tomography findings by gross anatomical and histological investigations.
MedLine Citation:
PMID:  22116121     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Objectives: This aims of this study were (1) to assess the validity of limited cone beam CT (CBCT) in detecting the distribution of bifid mandibular canals in the retromolar region by comparing its findings with those of panoramic radiography and spiral CT imaging, and (2) to confirm the contents of such canals depicted on limited CBCT images by using gross anatomical and histological methods.Methods: Bilateral bifid mandibular canals of a Japanese cadaver were investigated. The canals depicted on panoramic radiography, spiral CT and limited CBCT images were compared. Cross-sectional limited CBCT images of these canals were compared with gross anatomical sections of the mandible and their contents were confirmed histologically.Results: The spiral CT and limited CBCT images showed the bilateral bifid mandibular canals in the retromolar region whereas the panoramic radiographs indicated the presence of only the left bifid mandibular canal. The canal distribution was more distinct in the limited CBCT images than in the spiral CT images and the cross-sectional limited CBCT images were consistent with the gross anatomical sections. Histologically, the canals contained several nerve bundles and arteries among which the largest nerve and artery were of a similar size.Conclusion: Limited CBCT is valuable for assessing the distribution of bifid mandibular canals. It is clinically significant to accurately localize a bifid mandibular canal of the retromolar region because it contains a nerve bundle and artery.
Authors:
K Fukami; K Shiozaki; A Mishima; A Kuribayashi; Y Hamada; K Kobayashi
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-11-24
Journal Detail:
Title:  Dento maxillo facial radiology     Volume:  -     ISSN:  0250-832X     ISO Abbreviation:  -     Publication Date:  2011 Nov 
Date Detail:
Created Date:  2011-11-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  7609576     Medline TA:  Dentomaxillofac Radiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
1Department of Oral Radiology, Tsurumi University School of Dental Medicine, Yokohama, Japan.
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