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An In-Vitro Acidic Media Simulation of GERD and Its Effect on Machine-Milled Ceramics’ Optical Properties

Gardado en:
Publicado en:Prosthesis vol. 7, no. 6 (2025), p. 156-168
Autor Principal: Elsayed, Hend M
Outros autores: Elmarakby, Ahmed M, Yousief, Salah A, Abd Elwahab Heba A., Alturki, Moayad W, Tawwash Eman M. H., Albahkaly, Hajar S, Rayes, Kholud A, Bawazir, Hadeel A, Samran, Hagar A, Samran Abdulaziz, Elsebaey Labib M. L.
Publicado:
MDPI AG
Materias:
Optical properties
Dental erosion
Gastroesophageal reflux
Dental restorative materials
Influence
Aging
Stomach
Lithium
Hydrochloric acid
Composite materials
Acceso en liña:Citation/Abstract
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Resumo:Background: Gastroesophageal reflux disease (GERD) exposes restorative materials to gastric acid, which may compromise their esthetic and optical properties. Limited evidence exists regarding the performance of different CAD/CAM ceramics under acidic challenges. Methods: Forty CAD/CAM ceramic discs were prepared (n = 10 per group): high-translucency zirconia (Z; Ceramill Zolid Gen-X), lithium disilicate (E; IPS e.max CAD), zirconia-reinforced lithium silicate (S; VITA Suprinity), and hybrid ceramic (C; Cerasmart 270). Specimens were immersed in simulated gastric acid (0.06 M HCl, pH 1.2) at 37 °C for 96 h. Color difference (ΔE) and translucency parameter (ΔTP) were recorded before and after immersion using a spectrophotometer. Data were analyzed using one-way ANOVA with Tukey’s post hoc test (α = 0.05). Results: All materials exhibited changes in color and translucency after acidic immersion. Group Z demonstrated the lowest ΔE values, indicating the best color stability, whereas group C showed the highest ΔE and a significant reduction in ΔTP. Groups E and S revealed moderate but clinically acceptable changes. Intergroup differences were statistically significant (p < 0.05). Conclusions: Exposure to simulated gastric acid as in (GERD) resulted in measurable alterations in the optical properties of CAD/CAM ceramic materials. The extent of color change and translucency loss differed among the materials tested. High-translucency zirconia (Z) exhibited the greatest stability, while hybrid ceramic (C) showed the most pronounced changes. Zirconia-reinforced lithium silicate (S) and lithium disilicate (E) demonstrated moderate alterations, falling between these two extremes.
ISSN:2673-1592
DOI:10.3390/prosthesis7060156
Fonte:Health & Medical Collection