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Comparison of accuracy cone-beam computed tomography and digital bitewing radiography for detection of recurrent caries under various restorative materials: in vitro study

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Abstract

Objective

The aim of this study was to compare and evaluate diagnostic accuracy of two different CBCT scan modes and digital bitewing radiography for detection of recurrent caries under five different restorative materials, and determine the relationship between the types of restorative materials.

Materials and methods

In this in vitro study, 200 caries-free upper and lower premolars and molars were selected. A standard deep Class II cavities was created in the middle of the mesial surface of all teeth. In 100 teeth of the experimental and control groups, secondary caries was artificially demineralized. All teeth were filled with five types of restorative material including two types of conventional composite resins, flow composite resin, glass ionomer and amalgam. The teeth were imaged with high resolution (HIRes) and standard CBCT scan modes and digital bitewing. The AUC, sensitivity, specificity and areas under the ROC curve were calculated and verified through SPSS.

Results

CBCT technique was the best option in diagnosing recurrent caries. The diagnostic accuracy and specificity of HIRes CBCT scan mode was significantly higher than standard mode (P = 0.031) and bitewing (P = 0.029) for detection of recurrent caries, especially under composite group. There were no significant differences in accuracy value of bitewing and standard CBCT scan mode.

Conclusion

CBCT showed higher accuracy and specificity on the detection of recurrent caries which was more accurate than bitewing radiography. The HIRes CBCT scan mode achieved the highest accuracy and performed the best in recurrent caries detection.

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Data Availability

Data will be available on request.

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Acknowledgements

We are grateful to Dr. Hakimeh Ghorbani for their help in CBCT and bitewing images observation. In addition, we would like to express our special thanks to the personals of Dr. Farida Abesi radiology for supplying CBCT and bitewing images.

Funding

The financial and funding provided by Babol University of Medical Sciences.

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Authors and Affiliations

Authors

Contributions

FT contributed to guarantor of integrity of the entire study, literature research, data analysis, statistical analysis and manuscript preparation. FA contributed to study concepts and design, clinical studies, data analysis and manuscript editing. FE contributed to guarantor of integrity of the entire study, clinical studies, experimental studies, manuscript editing and supervision. SM contributed to study design and methodology. HG contributed to data analysis. AB contributed to statistical analysis.

Corresponding authors

Correspondence to Farida Abesi or Fariba Ezoji.

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Conflict of interest

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.

Ethical approval

Research permission was granted by the Research Ethics Committee of Babol University of Medical Sciences (approval code: IR.MUBABOL.REC.1399.377).

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Not Applicable. No informed consent is required of this type of study.

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Talachi, F., Abesi, F., Ezoji, F. et al. Comparison of accuracy cone-beam computed tomography and digital bitewing radiography for detection of recurrent caries under various restorative materials: in vitro study. Oral Radiol 39, 722–730 (2023). https://doi.org/10.1007/s11282-023-00690-x

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