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Temperature Dependence of Specific Heat of Human Enamel and Dentin: An Experimental Study

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Abstract

Knowledge about the thermal properties of human teeth is imperative for accurate understanding of heat transfer in dentistry. Despite the presence of specific heat in thermal conduction and heat transfer equations, and requiring this parameter for calculation of conductivity based on diffusivity, adequate attention has not been paid to experimental assessment of specific heat of the human enamel and dentin. Specific heat can be a temperature-dependent property. Thus, this study aimed to assess the specific heat of the human enamel, sound dentin, and carious dentin at 20 °C to 70 °C temperature (which is the realizable temperature range in dental procedures) using the differential scanning calorimetry (DSC). The results showed that the specific heat of the enamel, sound dentin and carious dentin increased with temperature rise. The specific heat of the enamel, sound dentin and carious dentin at 20 °C to 70 °C ranged from 709 J·kg−1·K−1 to 921 J·kg−1·K−1, 880 J·kg−1·K−1 to 1139 J·kg−1·K−1 and 951 J·kg−1·K−1 to 1311 J·kg−1·K−1, respectively.

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Acknowledgements

The authors would like to thank Dr. Seyedeh Sareh Hendi, Associate Professor, Department of Operative Dentistry, Dental school, Hamadan University of Medical Sciences for all her invaluable help and advice throughout this research.

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Authors and Affiliations

  1. School of Mechanical Engineering, College of Engineering, University of Tehran, North Kargar St, Tehran, Iran

    Ahmad Soori & Farshad Kowsary

  2. Department of Restorative Dentistry, Dental School, Shahid Beheshti University of Medical Sciences, Tehran, Iran

    Shahin Kasraei

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  1. Ahmad Soori
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  2. Farshad Kowsary
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  3. Shahin Kasraei
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Correspondence to Farshad Kowsary.

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Soori, A., Kowsary, F. & Kasraei, S. Temperature Dependence of Specific Heat of Human Enamel and Dentin: An Experimental Study. Int J Thermophys 42, 134 (2021). https://doi.org/10.1007/s10765-021-02885-y

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  • DOI: https://doi.org/10.1007/s10765-021-02885-y

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