Paper Information

Journal:   JOURNAL OF RESEARCH IN DENTAL SCIENCES   SPRING 2010 , Volume 7 , Number 1 (23); Page(s) 75 To 81.
 
Paper: 

A EVALUATION OF SPIRAL TOMOGRAPHY IN POSITION OF INFERIOR DENTAL CANAL

 
 
Author(s):  TALAEIPOUR A.R.*, MEHRALIZADEH S., AZIZI HAMEDANI S.
 
* ORAL RADIOLOGY DEPT., ISLAMIC AZAD UNIVERSITY, DENTAL BRANCH
 
Abstract: 

Background and Aim: For certain surgical procedures (e.g. placement of implants), an accurate localization of the mandibular canal is of utmost importance to avoid injuries to the neurovascular bundle. The aim of the present study was to evaluate, the accuracy of spiral tomography for the localization of the mandibular canal.
Material and Methods: By means of the cranex tome multifunctional unit (orion corporation Sordex, Finland), tomographic slices were taken at 4 different locations in each posterior mandible segments (distal to the mental foramen). The mandibles were then sectioned at these 4 sites with a specialize designed drill. The following 4 measurements were preformed both on the tomograms (A, B, C and D) and the bone sections (A’, B’, C’ and D’) at the 4 sites.
Results: We found an average mean difference of 0.02 mm with a standard deviation of 0.33 mm. The reported data showed that %95.2 of cases are in
±0.5 mm and %98.4 of cases are in ±1 mm (overestimate and underestimate).
Conclusion: Spiral tomography using the cranex tome multifunctional x-ray unit provides accurate information and sufficient detail for preoperative planning of implant in the posterior mandible.

 
Keyword(s): SPIRAL TOMOGRAPHY, DRY MANDIBLE, INFERIOR DENTAL CANAL
 
References: 
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