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Evaluation of the combined assessment of two digital enhancement filters in periapical radiographs obtained with different projection angles in the detection of simulated dental root fractures

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Abstract

Objective

To evaluate the diagnostic efficacy of the combined assessment of the original radiographic image with the Invert or Emboss digital enhancement filters in periapical radiographs obtained with different horizontal projection angles in the detection of simulated dental root fracture.

Materials and methods

Thirty-four single-rooted teeth were selected, out of which 17 teeth were subjected to root fracture. Each tooth was individually placed in an empty socket of a dry human maxilla or mandible and X-rayed following the paralleling technique at three horizontal projections: mesial, right angle, distal. Then, the Invert and Emboss enhancement filters were applied. Five examiners independently evaluated all the images and rated the fractures using a 5-point scale. Weighted kappa test assessed the intra- and interexaminer agreements. Diagnostic values were calculated and the areas under the receiver operating characteristic curve (AUC) were compared using two-way ANOVA with Tukey test as post hoc (α = 0.05).

Results

The inter- and intraexaminer agreement ranged from moderate to almost perfect and from substantial to almost perfect, respectively. Diagnostic values were considerably high for all conditions with no significant difference between the AUC values (p > 0.05).

Conclusions

The combined use of the original radiographic image with the Invert or Emboss digital enhancement filters in periapical radiographs obtained with different projection angles did not influence the detection of simulated dental root fracture.

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Funding

There was no funding for this research.

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Authors and Affiliations

  1. Division of Oral Radiology, Department of Oral Diagnosis, Piracicaba Dental School, University of Campinas, Av. Limeira, 901, Areião Piracicaba, SP, 13414-903, Brazil

    Victor Aquino Wanderley & Matheus L. Oliveira

  2. Division of Oral Radiology, Department of Oral Diagnosis and Surgery, Araraquara Dental School, São Paulo State University, Araraquara, SP, Brazil

    Ana Lidia Pinheiro Silva & Guilherme Monteiro Tosoni

Authors
  1. Victor Aquino Wanderley
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  2. Matheus L. Oliveira
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  3. Ana Lidia Pinheiro Silva
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  4. Guilherme Monteiro Tosoni
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Correspondence to Victor Aquino Wanderley.

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There was no conflict of interest.

Ethics approval

All procedures followed were in accordance with the ethical standards of the responsible committee on human experimentation (institutional and national) and with the Helsinki Declaration of 1975, as revised in 2008. Informed consent was obtained from all patients for being included in the study. The present study has been approved by the local institutional research ethics committee (CAAE protocol 86028618.7.0000.5416).

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Wanderley, V.A., Oliveira, M.L., Silva, A.L.P. et al. Evaluation of the combined assessment of two digital enhancement filters in periapical radiographs obtained with different projection angles in the detection of simulated dental root fractures. Oral Radiol 38, 234–239 (2022). https://doi.org/10.1007/s11282-021-00550-6

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  • DOI: https://doi.org/10.1007/s11282-021-00550-6

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