The Temperature Dependence of Micro-Leakage between Restorative and Pulp Capping Materials by Cu Diffusion

Kamalak H1, Mumcu A2, Altin S*, 3
1 Inonu University, Faculty of Dentistry, Department of Restorative Dentistry, 44280, Malatya, Turkey
2 Inonu University, Scienctific and Technological Research Center, 44280, Malatya, Turkey
3 Inonu University, Science and Art Faculty, Physics Department, 44280 Malatya, Turkey

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© Kamalak et al.; Licensee Bentham Open.

open-access license: This is an open access article licensed under the terms of the Creative Commons Attribution Non-Commercial License ( which permits unrestricted, non-commercial use, distribution and reproduction in any medium, provided the work is properly cited.

* Address correspondence to this author at the Inonu University, Science and Art Faculty, Physics Department, 44280, Malatya, Turkey; Tel: +90 422 377 3739; Fax: +90 422 341 03 19; E-mail:


We used the Cu ions for the leakage analysis between pulp capping and restorative materials. Theoretically, Cu has more advantages than Ag ions due to their smaller radii (rCu2+=73 pm and rAg2+=94 pm), lower mass density (dCu=8.96 g/cm3 and dAg=10.49 g/cm3) and higher radio opacity which can be more useful by X-ray or EDX detectors, cheaper price and more abundance in planet when compared with Ag element which is generally used in the leakage studies. The micro leakage between dental restorations and pulp capping materials has been determined by using Micro Computed Tomography, Scanning Electron Microscopy and EDX analysis. It is found that the leakage has temperature dependent mechanism which increases with the increasing temperature. As a result, using Cu solution for leakage studies in dentine is an effective and easy method which can be used in dental science.

Keywords: Cu diffusion, microleakage in dentin, x-ray micro tomography.