Gastric acid challenge: Mechanical proficiency and surface gloss of tooth-colored restorative materials

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dc.authoridMisilli, Tuğba / 0000-0003-0019-4872
dc.contributor.authorYenidünya, Özge Gizem
dc.contributor.authorMisilli, Tuğba
dc.contributor.authorYılmaz, Ebru
dc.date.accessioned2025-05-29T02:57:38Z
dc.date.available2025-05-29T02:57:38Z
dc.date.issued2025
dc.departmentÇanakkale Onsekiz Mart Üniversitesi
dc.description.abstractBackgroundTo evaluate surface microhardness, roughness, and gloss changes of tooth-colored restorative materials [a direct composite (G-aenial A'Chord), an indirect composite (Gradia Plus), an ormocer (Admira Fusion), a giomer (Beautifil II), and an alkasite (Cention N)] after exposure to simulated gastric acid.MethodsA total of 110 disc-shaped specimens (22 discs of each material) were prepared using silicone molds (8 mmx2 mm) and exposed to either gastric acid or artificial saliva (control). Surface roughness (Ra), gloss (GU), and microhardness (VHN) were measured at baseline and after 96-hour of immersion in the solutions and the respective changes (triangle Ra, triangle GU, triangle VHN) were calculated. Intergroup comparisons were performed using ANOVA (Tukey post hoc) or Kruskal-Wallis tests (Bonferroni correction). Independent samples t-test or Mann-Whitney U test was used for comparisons of each material across immersion media, while paired t-test was applied for time-dependent analyses.ResultsIn the gastric acid medium, changes in all parameters led to significant differences among restorative materials, while in the artificial saliva medium, significant differences were observed in triangle VHN and triangle GU. The statistically significant difference between immersion media was observed in both triangle VHN and triangle Ra values for the giomer group, and in only triangle VHN values for the alkasite and indirect composite groups. In the gastric acid medium, the decrease in VHN and GU values was significant across all subgroups, while the increase in Ra was statistically significant only in the giomer and alkasite groups.ConclusionsWhile the giomer group exhibited the most significant changes in roughness and microhardness following exposure to gastric acid, all tested materials executed clinically admissible results regarding surface gloss.Clinical trial numberNot applicable.
dc.identifier.doi10.1186/s12903-025-05988-2
dc.identifier.issn1472-6831
dc.identifier.issue1
dc.identifier.pmid40259372
dc.identifier.scopus2-s2.0-105003290542
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1186/s12903-025-05988-2
dc.identifier.urihttps://hdl.handle.net/20.500.12428/30116
dc.identifier.volume25
dc.identifier.wosWOS:001472108600002
dc.identifier.wosqualityQ1
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherBmc
dc.relation.ispartofBmc Oral Health
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20250529
dc.subjectGastric acid
dc.subjectSurface gloss
dc.subjectSurface microhardness
dc.subjectSurface roughness
dc.subjectTooth-colored restorative materials
dc.titleGastric acid challenge: Mechanical proficiency and surface gloss of tooth-colored restorative materials
dc.typeArticle

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