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Original Research

Open Access

Examination of surface porosity of current pulp capping materials by micro-computed tomography (micro-CT) method

  • Burak Dayı1,*,
  • Muhammet Yalçın1

1Department of Restorative Dentistry, Faculty of Dentistry, Inonu University, 44280 Malatya, Turkey

DOI: 10.22514/jocpd.2024.038 Vol.48,Issue 2,March 2024 pp.93-101

Submitted: 06 April 2023 Accepted: 13 July 2023

Published: 03 March 2024

*Corresponding Author(s): Burak Dayı E-mail:


When dental pulp is exposed, it must be covered with a biocompatible material to form reparative dentine. The material used, besides being biocompatible, should have an ideal surface structure for the attachment, proliferation and differentiation of dental pulp stem cells. This study aimed to evaluate the porosity of the microstructures of four pulp capping materials using micro-computed tomography (micro-CT). Biodentine, Bioaggregate, TheraCal and Dycal materials were prepared according to the manufacturer’s instructions using 2 × 9 mm Teflon molds. A total of 60 samples, 15 in each group, were scanned using micro-CT. Open and closed pores and the total porosity of the microstructures of the materials were assessed. The findings obtained from the study were analyzed via the Kruskal-Wallis test followed by the Mann-Whitney U test. The porosity of Bioaggregate was significantly higher than that of Biodentine, Dycal and TheraCal in all porosity values. While Biodentine did not show a statistically significant difference in open and total porosity values from either TheraCal or Dycal, closed porosity values of Dycal were significantly higher than those of Biodentine and TheraCal. Because of the affinity of cells to porous surfaces, the pulp capping materials’ microstructure may affect the pulp capping treatment’s success. From this perspective, the use of Bioaggregate in direct pulp capping may increase the success of treatment.


Calcium hydroxide cement; Calcium silicate cements; Micro-CT; Porosity

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Burak Dayı,Muhammet Yalçın. Examination of surface porosity of current pulp capping materials by micro-computed tomography (micro-CT) method. Journal of Clinical Pediatric Dentistry. 2024. 48(2);93-101.


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