Universität zu Köln

Katehsari, Venus Hassani and Niedermeier, Wilhelm (2019). Solubility of dental core build-up materials in electric fields. J. Dental Sci., 14 (4). S. 346 - 352. TAIPEI: ELSEVIER TAIWAN. ISSN 2213-8862

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Abstract

Background/purpose: Over 250 years has been researched over the consequences of oral galvanism. Previous studies have already examined the influence on dental fixation materials. The aim of this study was to investigate the electro-chemical solubility behavior of different dental core build-up materials in a pseudo-realistic galvanic experimental setup. Materials and methods: The composite Admira (Voco, Cuxhaven, Germany) and two glass ionomer cements, Ketac Molar and Photac (3M-Espe, Seefeld, Germany), were examined. Test specimens were exposed to electric field strengths of 10-27 V/m in 0.9% saline solution. After 1, 2, 3, and 24 h, 2ml of the electrolyte was removed for analysis. Aluminum and calcium were selected as parameters to measure the solubility of the products. Differences between the test samples and controls were ascertained using the two sample t-test. Results: For all of the test groups, Admira demonstrated minimal solubility compared to Ketac and Photac. However, after 24 h in an electric field of 27 V/m, Admira demonstrated the highest increase in solubility compared to the controls (3.47 vs control at 0.76 mu mol/l). The second highest increase yielded the conventional glass ionomer cement Ketac (8.62 vs control at 5.28 mu mol/l), and a minor increase in solubility showed the composite-based glass ionomer material Photac (38.73 vs control at 31.78 mu mol/l) compared to the controls. Conclusion: This study demonstrated that galvanic processes increase the solubility of glass ionomer and composite. Therefore, the time of storage, electric field strength, and contact of the material with the electrodes significantly influenced their solubility. (C) 2019 Association for Dental Sciences of the Republic of China. Publishing services by Elsevier B.V.

Item Type:	Journal Article
Creators:	Creators Email ORCID ORCID Put Code Katehsari, Venus Hassani UNSPECIFIED UNSPECIFIED UNSPECIFIED Niedermeier, Wilhelm UNSPECIFIED UNSPECIFIED UNSPECIFIED
URN:	urn:nbn:de:hbz:38-125799
DOI:	10.1016/j.jds.2019.04.005
Journal or Publication Title:	J. Dental Sci.
Volume:	14
Number:	4
Page Range:	S. 346 - 352
Date:	2019
Publisher:	ELSEVIER TAIWAN
Place of Publication:	TAIPEI
ISSN:	2213-8862
Language:	English
Faculty:	Unspecified
Divisions:	Unspecified
Subjects:	no entry
Uncontrolled Keywords:	Keywords Language WATER Multiple languages Dentistry, Oral Surgery & Medicine Multiple languages
Refereed:	Yes
URI:	http://kups.ub.uni-koeln.de/id/eprint/12579