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ORIGINAL ARTICLE
Year : 2009  |  Volume : 21  |  Issue : 2  |  Page : 67-71

Conventional and digital radiographic methods in the detection of simulated external root resorptions: A comparative study


Department of Oral Medicine & Radiology, Dayananda Sagar College of Dental Sciences, Shavige Malleshwara Hills, Kumaraswamy Layout, Bangalore-560 078, India

Correspondence Address:
C J Sanjay
Department of Oral Medicine & Radiology, Dayananda Sagar College of Dental Sciences, Shavige Malleshwara Hills, Kumaraswamy Layout, Bangalore - 560 078
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/0972-1363.57889

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Objective : To evaluate and compare the efficacy of conventional and digital radiographic methods in the detection of simulated external root resorption cavities and also to evaluate whether the detectability was influenced by resorption cavity sizes. Methods : Thirty-two selected teeth from human dentate mandibles were radiographed in orthoradial, mesioradial and distoradial aspect using conventional film (Insight Kodak F-speed; Eastman Kodak, Rochester, NY) and a digital sensor (Trophy RVG advanced imaging system) with 0.7mm and 1.0mm deep cavities prepared on their vestibular, mesial and distal surfaces at the cervical, middle and apical thirds. Three dental professionals, an endodontist, a radiologist and a general practitioner, evaluated the images twice with a one-week time interval. Results : No statistical significance was seen in the first observation for both conventional and digital radiographic methods in the detection of simulated external root resorptions and for small and medium cavities but statistical difference was noted in the second observation (P<0.001) for both the methods. Conclusion : Considering the methodology and the overall results, conventional radiographic method (F-speed) performed slightly better than the digital radiographic method in the detection of simulated radiographic method but better consistency was seen with the digital system. Overall size of the resorption cavity had no influence on the performance of both methods and suggests that initial external root resorption lesion is not well-appreciated with both the methods as compared to the advanced lesion.


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