Introducing a new auto edge detection technique capable of revealing cervical root resorption in CBCT scans with pronounced metallic artifacts

Cervical resorption is a serious threat to the longevity of the teeth. In this study, the Canny edge-detection algorithm was applied on CBCT images to compare the accuracy of original and Canny views for diagnosing cervical resorption in endodontically treated teeth. Intracanal metallic posts were i...

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Bibliographic Details
Published in:	Scientific reports Vol. 14; no. 1; p. 4245
Main Authors:	Khosravifard, Negar, Vadiati Saberi, Bardia, Khosravifard, Amir, Hendi, Amirreza, Shadi, Kimia, Mihandoust, Sanaz, Yousefi, Zahra, Mortezaei, Tahereh, Ghaffari, Mohammad Ebrahim
Format:	Journal Article
Language:	English
Published:	London Nature Publishing Group UK 20-02-2024 Nature Publishing Group Nature Portfolio
Subjects:	692/700/3032/3039 692/700/3032/3093 692/700/3032/3123 Accuracy Algorithms Computer-assisted Cone-beam computed tomography Cone-Beam Computed Tomography - methods Diagnosis Endodontics Humanities and Social Sciences Humans Image processing multidisciplinary Root resorption Root Resorption - diagnostic imaging Science Science (multidisciplinary) Spiral Cone-Beam Computed Tomography Teeth Tooth Root Artifacts Endodontics Computer-assisted Image processing Cone-beam computed tomography
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Summary:	Cervical resorption is a serious threat to the longevity of the teeth. In this study, the Canny edge-detection algorithm was applied on CBCT images to compare the accuracy of original and Canny views for diagnosing cervical resorption in endodontically treated teeth. Intracanal metallic posts were inserted in 60 extracted teeth being randomly divided into three groups: control, 0.5 mm, and 1 mm cervical resorption. CBCT scans of the teeth were presented to three observers in both original and Canny formats with the accuracy being determined by receiver operating characteristic (ROC) analysis. The DeLong test was used for paired comparisons with the significance level set at 0.05. The highest accuracy belonged to Canny images in 1 mm resorption, followed by Canny images in 0.5 mm resorption, original images in 1 mm resorption, and original images in 0.5 mm resorption, respectively. The Canny images were significantly more accurate in the diagnosis of 0.5 mm ( p < 0.001) and 1 mm ( p = 0.009) resorption. Application of the Canny edge-detection algorithm could be suggested as a new technique for facilitating the diagnosis of cervical resorption in teeth that are negatively affected by metallic artifacts.
Bibliography:	ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	2045-2322 2045-2322
DOI:	10.1038/s41598-024-54974-1