Effects of Simulated Gastric Acid Exposure on Surface Topography, Mechanical and Optical Features of Commercial CAD/CAM Ceramic Blocks
| Autor: | Ciprian-Valentin Mihali, Anca Jivanescu, Codruța Ille, Elena-Alina Moacă, Daniel Pop, Ioana Ligia Pîrvulescu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Technology
Materials science QH301-705.5 QC1-999 CAD CAD/CAM surface morphology General Materials Science Ceramic Biology (General) Instrumentation gastric acid QD1-999 Fluid Flow and Transfer Processes Process Chemistry and Technology Physics General Engineering Engineering (General). Civil engineering (General) Computer Science Applications Chemistry ceramic materials visual_art surface roughness visual_art.visual_art_medium microhardness Gastric acid sense organs TA1-2040 Biomedical engineering |
| Zdroj: | Applied Sciences, Vol 11, Iss 8703, p 8703 (2021) Applied Sciences Volume 11 Issue 18 |
| ISSN: | 2076-3417 |
| Popis: | Gastric acid exposure produces tooth structure demineralization and dental ceramic degradation. The most affected patients are those who suffer from gastroesophageal reflux disease, bulimia nervosa, and pregnant women with prolonged severe nausea. In order to protect this kind of patient, the purpose of this study was to determine whether simulated gastric acid exposure leads to microstructural changes in surface topography, hardness, color changes, and translucency of some ceramic materials, which are already on the market. Forty disks (Triluxe Forte, Cerasmart, Enamic and Empress CAD) were analyzed before and after immersion in simulated gastric acid juice, in terms of microhardness, surface roughness, translucency, and surface morphology using scanning electron microscopy. Color change was assessed by using a spectrophotometer based on CIELab parameters and the results showed that, after exposure, ∆Eab remained under the threshold of acceptability and perceptibility. In terms of microhardness, Cerasmart is the only material that did not undergo changes after immersion. SEM images illustrated observable changes surface topography after acid exposure for all the tested materials. In conclusion, Triluxe Forte suffered the most important changes after simulated gastric acid juice exposure, and Cerasmart proved to be the least affected material. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|