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Evaluating the effects of orthodontic materials, field of view, and artifact reduction mode on accuracy of CBCT-based caries detection

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Abstract

Objectives

To investigate the influence of orthodontic materials, field of view (FOV), and artifact reduction (AR) on the assessment of approximal caries using cone beam computed tomography.

Materials and methods

Forty non-cavitated and restoration-free human premolars and molars ranging from sound to various grades of lesions without cavitations were assigned to 13 groups with different combination of fix appliance equipment. CBCT (cone beam computed tomography) (Planmeca ProMax 3D Mid, Helsinki, Finland) images were obtained using combinations of three orthodontic bracket materials and two orthodontic archwire with small and large FOVs and with and without AR activation. Receiver operating characteristic (ROC) analysis was used to calculate the area under the ROC curve (AUC).

Results

Interobserver agreement ranged from 0.44 to 0.92 and intraobserver agreement ranged from 0.50 to 0.99. Teeth lacking orthodontic materials had the highest Az values at 0.84. FOV and AR activation did not significantly affect AUC values (P > 0.05). The AUC data were significantly reduced by the addition of stainless steel wire, NT wire, or a combination of a stainless steel bracket with stainless steel wire (P < 0.05).

Conclusions

The addition of stainless steel wire, NT wire, or a stainless steel bracket with stainless steel wire combination prevented the diagnosis of non-cavitated interproximal tooth caries by CBCT. With and without AR modes and different FOVs did not influence the diagnosis of interproximal caries lesions with different types of orthodontic equipment.

Clinical relevance

A wide variety of brackets and wire combinations are used in the clinic; however, the extent to which these combinations impact the diagnosis of caries by CBCT as the effects of FOV and AR algorithms are unknown.

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Acknowledgments

The authors would like to thank Prof. Dr. Hasan Hüseyin Yılmaz for his contributions as a scientific advisor.

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Authors and Affiliations

  1. Vocational High School of Health Service, Gaziantep University, 27310, Şehitkamil, Gaziantep, Turkey

    Ozlem Isman DDS, PhD

  2. Private Practice, Gaziantep, Turkey

    Ali Murat Aktan DDS, PhD

  3. Private Practice, Istanbul, Turkey

    Elif Tarim Ertas DDS, PhD

Authors
  1. Ozlem Isman DDS, PhD
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  2. Ali Murat Aktan DDS, PhD
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  3. Elif Tarim Ertas DDS, PhD
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Correspondence to Ozlem Isman DDS, PhD.

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The authors declare that they have no conflicts of interest.

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This study was approved by the Gaziantep University Faculty of Medicine Ethic Committee Presidency (Protocol code: 407).

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Isman, O., Aktan, A.M. & Ertas, E.T. Evaluating the effects of orthodontic materials, field of view, and artifact reduction mode on accuracy of CBCT-based caries detection. Clin Oral Invest 24, 2487–2496 (2020). https://doi.org/10.1007/s00784-019-03112-7

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  • DOI: https://doi.org/10.1007/s00784-019-03112-7

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