The Extent of the Crack on Artificial Simulation Models with CBCT and Periapical Radiography

Shuang Wang, Yiran Xu, Zhengyan Shen, Lijun Wang, Feng Qiao, Xu Zhang, Minghua Li and Ligeng Wu

PLOS ONE, 2017, vol. 12, issue 1, 1-12

Abstract: Background: The aim of this study was to investigate the extent of the crack of a cracked tooth on an artificial simulation model with Periapical Radiography (PR) and cone beam computed tomography (CBCT) in vitro, providing the basis for early diagnosis and an appropriate treatment plan. Methods: Forty-four teeth with different extents of artificial cracks, created by exposure to liquid nitrogen after hot water at 100°C, were collected. They were subjected to PR and CBCT. Micro-computed tomography (micro-CT) examination, regarded as a relatively more accurate measurement than others, was used to measure and record the crack depth. Three observers, an endodontic graduate student, an experienced endodontist, and an experienced radiologist, examined the PR and CBCT results independently, and the presence or absence of cracks with PR and CBCT were respectively recorded. The external consistency ICC with 95% confidence interval (95% CI) was used to analyze the consistency among the graduate student, endodontist, and radiologist; ROC curves were used for the analysis of diagnostic performance of both radiographic modalities for tooth cracks with crack depth. Results: For the interpretation of the PR results, there were statistically significant differences among the three different observers (P

Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0169150

DOI: 10.1371/journal.pone.0169150

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