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Effect of Composite Radiopacity and Margin Location of the Restoration on the Diagnosis of Secondary Caries Publisher Pubmed



Mosavat F1 ; Ahmadi E2 ; Aghajani F3 ; Ramezani S4
Authors
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Authors Affiliations
  1. 1. Department of Oral and Maxillofacial Radiology, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
  2. 2. Department of Operative Dentistry, Dental research center, Dentistry Research Institute, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
  3. 3. Department of Operative Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran
  4. 4. Department of Pediatric Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, Iran

Source: Brazilian Dental Journal Published:2024


Abstract

This research aimed to evaluate the effect of the radiopacity of a Bulk-Fill composite (X-TraFil, VOCO, Germany) and a Conventional composite (P60, 3M ESPE, USA) and assessment of the margin location in the enamel and dentin on the diagnosis of secondary caries. 76 intact premolars with MOD preparation were divided into two equal groups and filled with the conventional and bulk-fill composite. Four regions were considered to simulate carious lesions (two regions in enamel and two regions in dentin). In each group, half of the regions in the dentin and half in the enamel were randomly selected for secondary caries simulation and filled with a wax-plaster combination while the remaining regions stayed intact. Bitewing imaging was done using the PSP digital sensor. Five examiners reviewed the images, and lesions were recorded. Caries diagnosis indicators and paired-sample t-test were used for statistical analysis. The reproducibility and accuracy of the examiners’ responses were evaluated using the kappa and agreement coefficient (α=0.05). The sensitivity, specificity, and accuracy of diagnosing secondary carious lesions in enamel were significantly better under conventional than bulk-fill composite. Similarly, the sensitivity and accuracy of diagnosing secondary caries in dentin were significantly higher under conventional composite than bulk-fill composite (p<0.05). No significant differences were found in the agreement and kappa coefficient between conventional and bulk-fill composites in the enamel and dentin (p>0.05). The diagnostic accuracy of carious lesions was higher under conventional composite than bulk-fill composite. However, the location of the secondary was ineffective in caries diagnosis. © 2024, Associacao Brasileira de Divulgacao Cientifica. All rights reserved.