Journal of Pharmacy And Bioallied Sciences

ORIGINAL ARTICLE
Year
: 2020  |  Volume : 12  |  Issue : 5  |  Page : 367--372

Reliability of cone beam computed tomography in comparison with panoramic radiography to predict the anatomical relationship of inferior alveolar nerve with mandibular third molar: A radiological and clinical study


Ashford L George1, Prasanth Panicker1, Joseph Johny2, Manoj Bhaskar1, Basil M Jacob3, H H Hasli Zulthana3 
1 Department of Oral and Maxillofacial Surgery, Sree Anjaneya Institute of Dental Sciences, Calicut, Kerala, India
2 Department of Oral Medicine & Radiology, Sree Anjaneya Institute of Dental Sciences, Calicut, Kerala, India
3 Department of Oral and Maxillofacial Surgery, Al-Azhar Dental College, Thodupuzha, Kerala, India

Correspondence Address:
Ashford L George
Department of Oral and Maxillofacial Surgery, Sree Anjaneya Institute of Dental Sciences, Calicut, Kerala.
India

Objectives: The purpose of the study was to assess the precision of cone beam computed tomography (CBCT) in comparison with panoramic radiography in determining the anatomical relationship of inferior alveolar nerve (IAN) with the impacted mandibular third molar. Materials and Methods: Twenty patients diagnosed with the following panoramic radiographic markers: darkening of the root, interruption of white line of mandibular canal, diversion of mandibular canal, and narrowing of the roots suggesting a close relationship of roots with the mandibular canal were selected and underwent an additional CBCT to assess the proximity of IAN to mandibular third molar roots. All patients were assessed for loss of sensation or neurosensory deficit in the chin and lower lip during postoperative period by objective and subjective methods. Results: Twenty patients with an average age of 25.4 years (21–39 years) with 21 impacted mandibular third molars were included in this sample. It was found that after the removal of impacted third molars, IAN was not visible in any of the cases and postoperative objective and subjective neurosensory tests showed no signs of neurosensory disturbances. Conclusion: The study found that CBCT had limited usefulness in neurovascular bundle exposure prediction, prior to surgical removal of impacted mandibular third molars. The accuracy of radiographic markers in conventional panoramic radiography to predict neurovascular exposure was also limited.


How to cite this article:
George AL, Panicker P, Johny J, Bhaskar M, Jacob BM, Zulthana H H. Reliability of cone beam computed tomography in comparison with panoramic radiography to predict the anatomical relationship of inferior alveolar nerve with mandibular third molar: A radiological and clinical study.J Pharm Bioall Sci 2020;12:367-372


How to cite this URL:
George AL, Panicker P, Johny J, Bhaskar M, Jacob BM, Zulthana H H. Reliability of cone beam computed tomography in comparison with panoramic radiography to predict the anatomical relationship of inferior alveolar nerve with mandibular third molar: A radiological and clinical study. J Pharm Bioall Sci [serial online] 2020 [cited 2020 Oct 25 ];12:367-372
Available from: https://www.jpbsonline.org/article.asp?issn=0975-7406;year=2020;volume=12;issue=5;spage=367;epage=372;aulast=George;type=0