AFM and SEM/EDS characterization of surfaces of fluorine-releasing bulk-fill restorative materials aged in common liquids


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KARAKAŞ S. N., KÜDEN C.

JOURNAL OF ORAL SCIENCE, vol.64, no.3, pp.202-207, 2022 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 64 Issue: 3
  • Publication Date: 2022
  • Doi Number: 10.2334/josnusd.22-0020
  • Journal Name: JOURNAL OF ORAL SCIENCE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, CINAHL, EMBASE, MEDLINE
  • Page Numbers: pp.202-207
  • Keywords: AFM, bulk-fill, EDS, microhardness, roughness, COLOR STABILITY, DENTAL EROSION, BOND STRENGTH, MICROHARDNESS, ROUGHNESS, COMPOSITES, HARDNESS, SPORTS
  • Çukurova University Affiliated: Yes

Abstract

Purpose: This study investigated the surface roughness (SR), surface microhardness (SH), and chemical composition of recently developed fluoride-releasing restorative materials aged in common liquids. Methods: A total of 276 disc-shaped samples with a diameter of 8 mm and a height of 2 mm were prepared by using four restorative materials: alkasite, Activa, Equia Forte, and Zirconomer. Atomic force microscopy (AFM) and the Vickers microhardness test were used to measure SR and SH, respectively. Scanning electron microscopy-energy dispersive X-ray spectroscopy (SEM/EDS) was used for elemental analysis of the materials. The prepared samples were divided into 3 subgroups and immersed in coffee, cola, and saliva for 1 week at 37 degrees C and 100% humidity. Results: Cola and coffee significantly increased the SR of all materials except Zirconomer immersed in coffee (P < 0.05). The microhardness of alkasite and Activa significantly decreased in all liquids (P < 0.05) The percentage of fluorine (F) in the materials significantly changed after immersion for some liquids (P < 0.05). Conclusion: Aging differentially affected the surface characteristics and elemental mass ratios of the studied materials.