Comparison of the Role of Conventional Radiograph with Dentascan in Evaluation of Jaw Tumours

Introduction: High cost, high patient dose and limited availability make CT imaging modality unsuitable for routine dentistry. Owing to the above points the present study was planned with the aim to compare the findings of Radiographs and Dental CT & compare the efficacy of dental CT with dental radiography in studying jaw tumours. Materials and Method: Patients with provisional diagnosis of jaw lesions were included in the study. All the included patients were planned to undergo Conventional radiograph and Dental CT. Once the investigations were done the findings of both the procedures were compared and evaluated with the help of an expert. Total of 40 patients were included in the study. Results: On radiographic evaluation 4 cases showed root resorption that was confirmed by CT evaluation. A kappa value of 50% with p value 0.03 indicates there is fair agreement between conventional radiograph and CT in relation to the adjacent tooth. Discussion and Conclusion: Dental CT at every step has proved to be better than dental radiographs for jaw lesion because it clearly depicts the extent of the lesions. There is no requirement of magnification, superimposition of anatomical structures and geometric distortion. More over dental CT also reduces the artefact from dental fillings.