The Open Dentistry Journal




ISSN: 1874-2106 ― Volume 12, 2018
RESEARCH ARTICLE

The Influence of Cold Atmospheric Plasma Irradiation on the Adhesive Bond Strength in Non-Demineralized and Demineralized Human Dentin: An In Vitro Study



Sandra Maria Imiolczyk1, *, Moritz Hertel2, Isabella Hase2, Sebastian Paris1, Uwe Blunck1, Stefan Hartwig3, Saskia Preissner1, *
1 Department of Operative and Preventive Dentistry, Charité - Universitätsmedizin Berlin, Aßmannshauser Str. 4-6, 14197Berlin, Germany
2 Department of Oral Medicine, Dental Radiology and Oral Surgery, Charité - Universitätsmedizin Berlin, Aßmannshauser Str. 4-6, 14197Berlin, Germany
3 Johannes Wesling Klinikum Minden, Universitätsklinikum der Ruhr-Universität Bochum, Hans-Nolte-Str. 1, 32429 Minden, Germany

Abstract

Purpose:

While aiming at the use of Cold Atmospheric Plasmas (CAPs) in restorative dentistry, the present study intended to assess if plasma irradiation increases the Tensile Bond Strength (TBS) in non-demineralized and demineralized dentin.

Materials and Methods:

Forty-eight human dentin samples were assigned to three different treatment modalities: I: Plasma jet irradiation (CAP I); II: Dielectric barrier discharge plasma treatment (CAP II); and III: No plasma (control). In each group, half of the specimens had previously been demineralized. A fourth generation of adhesive and dental composite was applied to all of the samples. The testing of the TBS was performed after artificial aging.

Results:

In the non-demineralized dentin, the mean TBS values were significantly higher after using CAP II (16.95 MPa) than in the control samples (4.2 MPa; p = 0.001). Significantly higher TBS values were also obtained after irradiating the demineralized dentin with CAP I and CAP II (11.68 and 4.6 MPa) when compared to the control samples (0 MPa; p = 0.003 and 0.038). The differences between both of the plasma sources were only slightly significant (p = 0.05).

Conclusion:

CAPs can potentially enhance the adhesive/dentin interfacial bonding strength, whereby the underlying effects seem to depend on the type of plasma source and the degree of dentinal (de-) mineralization. In the non-demineralized dentin, after a complete caries excavation, dielectric barrier discharge devices might be favorable over the plasma jets, in order to improve the adhesive/dentin interfacial bonding. In contrast, the plasma jets could be more effective in the demineralized dentin after an incomplete caries excavation.

Keywords: Tensile bond strength, Cold atmospheric plasma, Dentin adhesive, Restorative dentistry, Indirect plasma, Direct plasma.


Article Information


Identifiers and Pagination:

Year: 2018
Volume: 12
First Page: 960
Last Page: 968
Publisher Id: TODENTJ-12-960
DOI: 10.2174/1874210601812010960

Article History:

Received Date: 29/3/2018
Revision Received Date: 4/10/2018
Acceptance Date: 21/10/2018
Electronic publication date: 28/11/2018
Collection year: 2018

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© 2018 Imiolczyk et al.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


Correspondence: Address correspondence to this author at the Department of Operative and Preventive Dentistry, Charité - Universitätsmedizin Berlin, Aßmannshauser Str. 4-6, 14197 Berlin, Germany, Tel: +4930450562675, Fax: +4930450562932; E-mail: saskia.preissner@charite.de* Both authors contributed equally


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