AUTHOR(S): Dr. Inderpreet Singh Oberoi, Dr. Altaf Hussain Chalkoo and Dr. Kuku Dhingra

ABSTRACT:Background: From past many years, the peri-apical and occlusal radiographs have dominated the intraoral radiography techniques for diagnostic purposes. Three-dimensional images of the oral and maxillofacial structures have been made possible by Cone beam computed tomography. Hence; we undertook the present study to compare various radiological techniques in the evaluation of supernumerary and impacted teeth. Materials & Methods: The present study included assessment of 30 patients who were found to have supernumerary or impacted teeth. A pre-operative CBCT was done in all the cases and patients were subsequently sent for panoramic radiography. Among the 30 patients, in 2 cases, conventional panoramic radiography was done while in 10 cases, digital radiography was used. All the patients aged between 10 to 45 years of age with mean age being 18 years. The preoperative expected anatomical localization was recorded. The "gold standard" was the intra-operative surgical findings. All the results were analyzed by SPSS software. Results: Out of 30 patients, 28 of them were having correct pre-operative findings while only two patients were found to have divergence. Therefore, 93.33 percent of the patients had correct pre-operative CBCT finding.. Pre-operative correct findings were recorded in 56.67 percent of the subjects from conventional radiography. Divergence from the correct diagnosis was observed in 43.33 percent of the subjects on conventional radiography. Conclusion: Precise information, anatomically, is provided more efficiently by CBCT

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