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Accuracy of an electrical impedance device in estimation of remaining dentin thickness vs cone beam computed tomography

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Abstract

The objective of this study is to compare the estimated values of remaining dentin thickness (RDT) recorded by a newly introduced electrical impedance device (Prepometer) with cone beam computed tomography (CBCT) and histological in situ measurement. A total number of thirty human molars were used in this study. A deep class I cavity was prepared. The RDT for each cavity was measured with Prepometer in three different points (mesial, middle, and distal). Same specimens were imaged with high-resolution Cone Beam Computed Tomography CBCT (0.1 mm voxel size) using I CAT next Generation Machine (Imaging Science International, Hatfield, PA, USA), to provide the highest possible accuracy of linear measurements. Finally, the specimens were vertically sectioned parallel to the long axis of the tooth in a mesiodistal direction splitting the cavity into two halves through its center. Then, the actual RDT of each half will be measured in the same three points using a digital caliper. The outcome of one-way ANOVA revealed that there was no significant difference in RDT values measured by prepometer device, CBCT, or histological sectioning methods (p > 0.05). Within the limitations of this laboratory study, prepometer seems to be a potential non-invasive accurate measuring tool for RDT. Based on the findings of this study, the Prepometer can be considered as an easily handled and less-expensive method compared to CBCT to evaluate the RDT. Also, it can be used in dental schools and with less-experienced operators to avoid traumatic exposures of the dental pulp.

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Funding

This work is self-funded and does not supported by any third-party funding.

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Authors and Affiliations

  1. Restorative Dentistry Department, Faculty of Dentistry, Delta University for Science and Technology, International Coastal Road, Gamsa, Mansoura, Egypt

    Hebatallah Sarhan

  2. Operative Dentistry Department, Faculty of Dentistry, Mansoura University, Algomhoria St, Mansoura, 35516, Egypt

    Hamdi Hamama & Salah Mahmoud

  3. Faculty of Dentistry, Mansoura University, Mansoura, Egypt

    Wael Aboelmaaty

  4. College of Dentistry, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia

    Wael Aboelmaaty

  5. Restorative Dental Sciences Discipline, Faculty of Dentistry, Prince Philip Dental Hospital, The University of Hong Kong, Hong Kong SAR, China

    Ahmed Zaeneldin

Authors
  1. Hebatallah Sarhan
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  2. Hamdi Hamama
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  4. Ahmed Zaeneldin
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  5. Salah Mahmoud
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Corresponding author

Correspondence to Hamdi Hamama.

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Conflict of interest

Hebatallah Sarhan declares that he has no conflict of interest. Hamdi Hamama declares that he has no conflict of interest. Wael Aboelmaaty declares that he has no conflict of interest. Ahmed Zaeneldin declares that he has no conflict of interest. Salah Mahnoud declares that he has no conflict of interest.

Ethical approval

The collection process of extracted teeth used in this study was approved by the Faculty of Dentistry Research Ethics Committee. Also, standard written consents were obtained from each patient agreeing to donate their extracted teeth for research purpose.

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Sarhan, H., Hamama, H., Aboelmaaty, W. et al. Accuracy of an electrical impedance device in estimation of remaining dentin thickness vs cone beam computed tomography. Odontology 110, 489–496 (2022). https://doi.org/10.1007/s10266-021-00681-6

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  • DOI: https://doi.org/10.1007/s10266-021-00681-6

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