Roesner, Anuschka Josephine and Schmohl, Leonie and Hahnel, Sebastian and Fuchs, Florian and Koenig, Andreas and Rauch, Angelika (2022) Acid resistance of self-adhesive resin luting cements - changes in surface texture parameters and microhardness. DENTAL MATERIALS, 38 (8). pp. 1376-1384. ISSN 0109-5641, 1879-0097
Full text not available from this repository. (Request a copy)Abstract
Objectives: When consumed in excess, acidic foods and beverages can cause dental ero-sions leading to irreversible loss of tooth substance. In many cases, prosthetic rehabilita-tion of the damaged teeth is mandatory. The aim of this in vitro study was to investigate, for the first time on this scale, the resistance of various commonly used self-adhesive resin luting cements (Bifix SE, VOCO; G-Cem LinkAce, GC; RelyX Unicem, 3 M Oral Care; SpeedCEM Plus, Ivoclar ) against acidic media, and to find out whether they can withstand long-term exposure. These results were compared with an adhesive resin luting cement (Panavia V5, Kuraray) that functioned as reference gold standard. Furthermore we applied area roughness parameters for surface texture analysis in the present investigation, to highlight their advantages for investigations on the surface quality of resin luting cements.Methods: Six specimens with identical diameter (10 mm) and thickness (3 mm) were pre-pared from each self-adhesive and adhesive resin luting cement and forwarded to an in-cubation in various acidic media for a period of 232 h. Conductivity and pH-values of each acidic medium was analyzed for each material group prior (t 0) and after exposure (t 1). The specimens were examined for Vickers microhardness and surface quality. For the eva-luation of surface roughness, the parameters Sa, Sdr, Spc Spk, Sk, and Svk were in-vestigated by using different filtered surfaces (S-L; S-F) according to ISO 25 178. Statistical analysis was conducted at a significance level of alpha = 0.050.Results: For the evaluation of the acid resistance of self-adhesive resin luting cements in-vestigations on conductivity and pH-value assessment of storage solution appear unsuitable, while the assessment of microhardness and surface analysis revealed valid data. It could be shown that changes in surface texture of the resin luting cements can be determinend in qualitative and quantitative manner. While the microhardness and sur-face quality of some resin luting cements hardly changed, others showed significantly reduced values in microhardness and changes in their surface quality (p < 0.001).Significance: The data of the current study emphasize the relevance of interactions between resin luting cements and acids and suggest further laboratory and clinical studies to elu-cidate its impact on the clinical performance of the materials investigated (c) 2022 The Academy of Dental Materials. Published by Elsevier Inc. All rights reserved.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | MECHANICAL-PROPERTIES; BOND STRENGTH; TOOTH WEAR; ROUGHNESS; WATER; Adhesive resin cement; Self-adhesive resin cement; Acid resistance; Surface quality; Physical and chemical properties |
| Subjects: | 600 Technology > 610 Medical sciences Medicine |
| Divisions: | Medicine > Lehrstuhl für Zahnärztliche Prothetik |
| Depositing User: | Dr. Gernot Deinzer |
| Date Deposited: | 26 Jan 2024 14:13 |
| Last Modified: | 29 Jan 2024 13:18 |
| URI: | https://pred.uni-regensburg.de/id/eprint/58125 |
Actions (login required)
 |
View Item |
