A Novel Volume-based Cone-beam Computed Tomographic Periapical Index

Introduction The purpose of this study was to evaluate the variations in volume periapical lesions scored using a cone-beam computed tomographic index (CBCTPAI) and develop new volume-based index. Methods Cone-beam images were obtained from InteleViewer (Intelerad Medical Systems Incorporated, Montreal, Canada). Teeth with radiolucency or history endodontic treatment included study. Using 3-dimensional medical imaging processing software (Mimics Research; Materialise NV, Leuven, Belgium), maximum diameter 273 their corresponding CBCTPAI score determined. then used determine semiautomatic segmentation technique. Results There substantial variation for scores 3, 4, 5, which demonstrated by variance range, thus making it difficult use current as method predict outcomes. A index, (CBCTPAVI), developed partition classification analysis. results high levels sensitivity, specificity, precision, area under curve, all at 0.90 more, except 1 sensitivity CBCTPAVI 0.875. Overall, accurate rate 98.169%, root mean square error low 0.07. Conclusions proposed will allow clinicians classify based on true size, accurately assess healing lesions,