Evaluation of mechanical properties of fluoride-releasing dental materials after multiple fluoride recharge/discharge application Avaliação das propriedades mecânicas de materiais dentários liberadores de flúor após aplicação múltipla de recarga/descarga de flúor

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GÜMÜŞTAŞ B., Yaman Dosdoğru E., GÜNEYSU S.

Bioscience Journal, vol.36, no.4, pp.1461-1470, 2020 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 36 Issue: 4
  • Publication Date: 2020
  • Doi Number: 10.14393/bj-v36n4a2020-47954
  • Journal Name: Bioscience Journal
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, CAB Abstracts, Veterinary Science Database
  • Page Numbers: pp.1461-1470
  • Keywords: Glass ionomer cement, Compomer, Resin-modified glass ionomer, Fluoride release, Microhardness
  • Istanbul Medipol University Affiliated: No


This study aimed to determine the mechanical properties of fluoride-releasing dental materials after an accelerated fluoride recharge/discharge procedure. Two fluoride-releasing glass ionomer types of cement (Ketac Molar Easymix and IonoStar Molar), a resin-modified glass ionomer (Photac Fil Quick Aplicap), and two compomers (Compoglass F and Glasiosite) were used in this study. A total of 30 rectangular specimens and 30 disk specimens of each material were prepared and placed in distilled/deionized water (n = 5). The amount of fluoride released was analyzed from the materials for 7-day discharge, 1st recharge, 7-day discharge, 2nd recharge, and 7-day discharge, and 3rd recharge. The de/pre-and post-recharge fluoride release were measured using an ion chromatography for 24 days. The flexural strength and microhardness of each group were evaluated. The microhardness of all restorative materials showed no significant change (p > 0.05) over the experimental period. The flexural strength properties of the restorative materials did not change within the time of the study. The study showed that the fluoride release/uptake causes no effect on the mechanical and physical properties of dental materials.