Comparison of other 2D intraoral bitewing images with TomoD using extracted teeth. The middle two teeth are the teeth of interest in each image. Micro‐CT axial images display ground truth lesion status. Arrows on the 2D and TomoD images indicate visible caries lesions. Arrows on the micro‐CT images indicate confirmed lesions.
3D Intraoral Imaging Clinical ValidationA recent reader study with 8 experienced dental radiologists was conducted at the University of North Carolina at Chapel Hill using a prototype TomoD system. The regular dose TomoD showed a 36% increase in sensitivity for caries detection compared to standard bitewing radiographs without a significant decrease in specificity. This result was confirmed by the significant increase in overall diagnostic performance as measured by ROC AUC. The results of the observer study show a remarkable increase in sensitivity as compared to previous studies without a sacrifice in specificity. A continued improvement in processing algorithms and fine‐tuning of the TomoD will most likely further improve caries detection sensitivity at both low and regular doses.
The researchers are currently preparing a manuscript to be submitted for publication.