Effect of Simulated Gastric Acid on Surface Roughness of Different Types of Dental Ceramics
At a Glance
Section titled āAt a Glanceā| Metadata | Details |
|---|---|
| Publication Date | 2021-01-01 |
| Journal | Egyptian Dental Journal /Egyptian Dental Journal |
| Authors | moaz eltorky, Mahmoud Shakal, Waleed Elshahawy, ElāRefaie Kenawy |
| Institutions | Tanta University |
| Citations | 4 |
Abstract
Section titled āAbstractāPurpose:The purpose of this in vitro study was to evaluate the effect of simulated gastric acidity on surface roughness of different types of dental ceramics.Methods: Fifty specimens were divided according to type of the material into five groups (n=10), as follows: Partially stabilized zirconia (PSZ) (Prettaue), Fully stabilized zirconia (FSZ) (Prettaue Anterior), lithium disilicate ceramics (IPS.Emax), Zirconia-containing lithium silicate ceramics (ZLS) (Vita Suprinity) and Hybrid ceramics (Vita Enamic).Specimens were cut using a low-speed diamond saw (Isomet) into a rectangular shape with the following dimension: 12mm width x 14mm length x 1 mm thickness.Surface roughness was evaluated by optical profilometer.Each specimen was immersed in 5 ml of the simulated acid of ph 1.2 for 96 h in a37ĖC incubator.Surface roughness of all tested groups was revaluated.One-way ANOVA was used to compare mean difference between groups.Paired t-test was used for comparing (before and after) roughness in each group.Results: There was significant difference (P=0.002) between all groups.There was increase in surface roughness for all materials tested, but it was non-significant (P>0.05) for Prettaue (P=0.607),Prettaue Anterior (P=0.273) and Vita Suprinty group (P=0.201).There was significant increase (Pā¤0.05) for IPS.Emax group (P=0.007) and Vita Enamic groups (P=0.021).Prettaue Anterior group showed the least amount of surface roughness change (0.0006Ā±0.002), while Vita Enamic group showed the highest surface roughness change (0.0100Ā±0.011). Conclusions:The gastric acid significantly increased the surface roughness of hybrid ceramics and lithium disilicate ceramics.