title: Mechanical and fluoride release properties of titanium tetrafluoride-added glass-ionomer cement.
abstract: The aim of this study was to determine the fluoride-release and mechanical properties of a water-hardening glass-ionomer cement (GIC) (ChemFil Superior) when titanium tetrafluoride (TiF4) was added. Three experimental groups were prepared with TiF4 added to the liquid component of the material in concentrations of 0.5, 1, and 2%. The control group was the original form of the cement and free of TiF4. After the specimens (4 mm in diameter x 6 mm in length) were prepared, their compressive strength, microhardness, modulus of elasticity, and fluoride release were measured. Data were analyzed using one-way analysis of variance (ANOVA) and post-hoc test (Bonferroni/Dunn correction). The addition of TiF4 into GIC significantly reduced fluoride release from the material with the exception of 1% TiF4 (p < 0.0083). Compressive strengths of 0.5 and 1% TiF4-added GICs were higher than that of the original GIC, but it was not statistically significant (p > 0.05). The differences among modulus of elasticity values of experimental and control groups were not significant (p > 0.05). Similarly, microhardness of GIC was not affected with TiF4 addition (p > 0.05).
authors.affiliation: Department of Restorative Dentistry & Endodontics, School of Dentistry, Ege University, Bornova, Izmir, Turkey. tijen@dent.ege.edu.tr
authors.forename: Tijen
authors.initials: T
authors.lastname: Pamir
authors.forename: Bilge Hakan
authors.initials: BH
authors.lastname: Sen
authors.forename: Ali
authors.initials: A
authors.lastname: Celik
mesh_terms: D000704:Analysis of Variance; D002327:Cariostatic Agents / Q000032:analysis*; D019245:Compressive Strength; D003799:Dental Stress Analysis; D004548:Elasticity; D005459:Fluorides / Q000032:analysis* / Q000737:chemistry*; D005899:Glass Ionomer Cements / Q000737:chemistry*; D006244:Hardness; D017736:Ion-Selective Electrodes; D008422:Materials Testing; D018709:Statistics, Nonparametric; D014025:Titanium / Q000737:chemistry*
chemical_list: D002327:Cariostatic Agents; C501420:Chemfil Superior; D005899:Glass Ionomer Cements; D014025:Titanium; D005459:Fluorides; C032240:titanium tetrafluoride