Detection of vertical root fractures using digitally enhanced images: reverse-contrast and colorization

Dental Traumatology : Official Publication of International Association for Dental Traumatology
Maryam TofangchihaFarhad Sobouti

Abstract

Root fracture diagnosis is a clinical difficulty that in most cases can only be detected through radiography. The objective of this study was to compare the diagnostic accuracy of two types of digitally enhanced images (reverse-contrast and colorization) with original digital radiographies in detecting experimental root fractures. Two hundred extracted single-rooted human teeth were endodontically instrumented and then divided in two groups, one control group and one test group, including fractured teeth. Vertical root fractures were experimentally made in the fractured group. The digital image of each tooth was taken, using the paralleling technique. There were three groups of images: (i) original, (ii) reverse contrast, and (iii) colorized. Three experienced dental specialists examined the images with no prior knowledge of the distribution of the root fractures. Two-way analysis of variance was used to assess the differences in accuracy, sensitivity, and specificity of each technique in detecting root fractures. Cohen's kappa coefficients were calculated to investigate the degree of interobserver agreement. The accuracy, sensitivity, and specificity of original images were 67.4%, 66.7%, and 68%, respectively; these amounts we...Continue Reading

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Jan 11, 2014·Dento Maxillo Facial Radiology·M C C NascimentoE J N L Silva
Apr 10, 2013·Dental Traumatology : Official Publication of International Association for Dental Traumatology·Werner H ShintakuStephen B Dove
Jun 5, 2014·International Endodontic Journal·H A R NascimentoD Q Freitas
Feb 6, 2021·Clinical Oral Investigations·Lucas Exposto SoaresMarcelo Andrade da Costa Vieira

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