Feasibility of micro-computed tomography to detect and classify proximal caries lesions in vitro
| Title: | Feasibility of micro-computed tomography to detect and classify proximal caries lesions in vitro |
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| Authors: | Karla Rovaris, Liana Matos Ferreira, Thiago Oliveira Sousa, Leonardo Vieira Peroni, Deborah Queiroz Freitas, Ann Wenzel, Francisco Haiter-Neto |
| Source: | Dental Research Journal, Vol 15, Iss 2, Pp 123-129 (2018) |
| Publisher Information: | Wolters Kluwer Medknow Publications, 2018. |
| Publication Year: | 2018 |
| Collection: | LCC:Dentistry |
| Subject Terms: | Caries detector, dental caries, diagnosis, X-ray micro-computed tomography, Dentistry, RK1-715 |
| More Details: | Background: Micro-computed tomography (micro-CT) has been widely described as a nondestructive in vitro imaging method although its accuracy for caries detection is still unclear. The aim of this study was to investigate the feasibility of micro-CT to detect and classify proximal caries lesions in posterior teeth, using different protocols. Materials and Methods: In this in vitro study, crowns of 122 human teeth were scanned with Skyscan 1174 (Bruker, Kontich, Belgium) using the full-scan mode (360°). Reconstruction of 900 basis images was performed using NRecon Software (Bruker, Kontich, Belgium) for the protocol 1 (full-scan mode 360°), and 450 basis images were used to reconstruct the protocol 2 (half-scan mode 180°). Three observers analyzed the reconstructed images concerning the presence and depth of proximal caries lesions (244 surfaces). To determine the presence/absence and depth of caries lesions, histological examination was conducted as reference standard level of significance McNemar and McNemar-Bowker tests compared the methods studied and the gold standard (P < 0.05). Results: The intra- and inter-observer agreement for both methods ranged from moderate to excellent. There was no difference between both micro-CT methods and histology for the presence of lesions (P > 0.05). However, both methods differed with the reference standard for depth (P < 0.05). The disagreement occurred mostly in cases of enamel lesions. The highest diagnostic values were found for 180° rotation. Micro-CT performed well in detecting caries lesions compared to histology, meanwhile the classification of their depth presented lower values. Scan mode did not influence the detection. Conclusion: Both protocols of micro-CT tested presented an overall satisfactory performance in detecting proximal caries lesions; however, for the depth classification, the method was not accurate. |
| Document Type: | article |
| File Description: | electronic resource |
| Language: | English |
| ISSN: | 1735-3327 2008-0255 |
| Relation: | http://www.drjjournal.net/article.asp?issn=1735-3327;year=2018;volume=15;issue=2;spage=123;epage=129;aulast=Rovaris; https://doaj.org/toc/1735-3327; https://doaj.org/toc/2008-0255 |
| DOI: | 10.4103/1735-3327.226529 |
| Access URL: | https://doaj.org/article/be19fb61bacf45668b3995525545590b |
| Accession Number: | edsdoj.be19fb61bacf45668b3995525545590b |
| Database: | Directory of Open Access Journals |
| ISSN: | 17353327 20080255 |
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| DOI: | 10.4103/1735-3327.226529 |
| Published in: | Dental Research Journal |
| Language: | English |