Effect of Erosive Agents on Surface Characteristics of Nano-Fluorapatite Ceramic: An In-Vitro Study

Abstract

Erosive beverages cause dissolution of natural teeth and intra-oral restorations, resulting in surface characteristic changes, particularly roughness and degradation. The purpose of this study was to evaluate the surface roughness and topography of a dental ceramic following immersion in locally available erosive solutions. A total of 160 disc specimens of a nano-fluorapatite type ceramic (12 mm diameter and 2 mm thickness) were fabricated and equally distributed into two groups (n = 80) and then evenly distributed among the following five testing groups (n = 16): lemon juice, citrate buffer solution, 4% acetic acid, soft cola drink, and distilled water which served as a control. The surface roughness (Ra) and topography were evaluated using a profilometer and scanning electron microscope at baseline, 24 h, 96 h, and 168 h respectively. Data were analyzed using ANOVA and Tukey’s multiple comparisons (p ≤ 0.05). Surface changes were observed upon exposure to all acidic beverages except distilled water. Amongst all immersion media, 4% acetic acid produced the most severe surface roughness across all time periods (i.e., baseline, 24 h, 96 h, and 168 h). A statistically significant difference in the surface roughness values between all immersion media and across all four time intervals was observed. Erosive agents had a negative effect on the surface roughness and topography of the tested ceramic. The surface roughness increased with increased storage time intervals.

Electrochemical behavior and degradation mechanism of lithium disilicate glass ceramics in acidic environment

“…As a result, alterations may occur in the surface characteristics of the material, such as variations in the oxide layer's thickness or the abundance of charge carriers. 27,28 The Nyquist diagrams and spectra revealed complex patterns indicating the presence of various processes and mechanisms related to a common underlying phenomenon of ionic diffusion in the grain and intergranular interfaces of the electrode material. 29,30 The EIS measurements show that the glass ceramic samples exhibit a high resistance to ion diffusion, which indicates that the material has a good chemical stability in the used electrolytes.…”

Dental Luting Cements: An Updated Comprehensive Review

“…During the early stages, resin cements failed due to high polymerization shrinkage and insufficient biocompatibility. Currently, resin cements have the ability to form a chemical bond with dentin and enamel and have higher bond strength and more predictability [ 62 , 63 , 64 ]. The bonding is usually achieved with organophosphonates, hydroxyethyl methacrylate (HEMA), or 4-methacryloxyethyl trimellitate anhydride (4-META) [ 62 , 65 , 66 ].…”

“…Currently, resin cements have the ability to form a chemical bond with dentin and enamel and have higher bond strength and more predictability [ 62 , 63 , 64 ]. The bonding is usually achieved with organophosphonates, hydroxyethyl methacrylate (HEMA), or 4-methacryloxyethyl trimellitate anhydride (4-META) [ 62 , 65 , 66 ]. During polymerization, adhesive monomer-impregnated exposed collagen fibrils become entangled with them to create the hybrid layer and achieve high tensile bonding strengths [ 67 ].…”

“…Resin cements are insoluble and have superior mechanical and physical properties, as compared with other previous luting materials [ 62 , 65 , 66 ]. The clinical advantages of resin cements include high resistance to compression forces, low thermal expansion coefficients, high flexural strengths, and superior hardness when compared with other luting materials.…”

Synthetic materials in craniofacial regenerative medicine: A comprehensive overview

“…In one meaning, TE occurs at the cross-section of life science and engineering and, importantly, involves the cell-ECM interactions. Involving proteoglycans and fibrous proteins, ECM mainly supports the cells’ structure and morphology, migration or attachment, differentiation, and immune response ( Heboyan and Avetisyan, 2019a ; Jenkins and Little, 2019 ; Tanweer et al, 2022 ; Vardhan et al, 2022 ; Yadalam et al, 2022 ). Cells’ homing and proliferation properties highly depend on their microenvironment, and in turn, the biocompatibility of the counterpart artificial ECM.…”