0000000000278069

AUTHOR

Ferhan Egilmez

showing 3 related works from this author

Light transmittance of zirconia as a function of thickness and microhardness of resin cements under different thicknesses of zirconia

2012

Objective: The objective of this study was to compare microhardness of resin cements under different thicknesses of zirconia and the light transmittance of zirconia as a function of thickness. Study design: A total of 126 disc-shaped specimens (2 mm in height and 5 mm in diameter) were prepared from dual-cured resin cements (RelyX Unicem, Panavia F and Clearfil SA cement). Photoactivation was performed by using quartz tungsten halogen and light emitting diode light curing units under different thicknesses of zirconia. Then the specimens (n=7/per group) were stored in dry conditions in total dark at 37°C for 24 h. The Vicker's hardness test was performed on the resin cement layer with a micr…

Materials scienceQuartz tungsten halogenLightchemistry.chemical_elementOdontologíaIndentation hardnesslaw.inventionlawHardnessMaterials TestingBiomaterials and Bioengineering in DentistryTransmittanceCubic zirconiaHardness TestsComposite materialGeneral DentistryCementZirconiumtechnology industry and agriculture:CIENCIAS MÉDICAS [UNESCO]Ciencias de la saludResin CementsOtorhinolaryngologychemistryVickers hardness testUNESCO::CIENCIAS MÉDICASSurgeryResearch-ArticleZirconiumLight-emitting diode
researchProduct

The cytotoxicity of resin composites cured with three light curing units at different curing distances.

2011

Objective: The purpose of this study was to compare the effect of light curing distance on the cytotoxicity of five resin composites cured with three high-power light curing units. Study design: Seven cylindrical discs of each material (Grandio ®, Voco; Filtek ? Z250, 3M ESPE; Clearfil ? AP-X, Kuraray Co. Ltd.; Aelite ? LS, Bisco Inc. and Simile ®, Pentron) were cured. For curing, soft-up mode of quartz-tungsten-halogen, exponential mode of light emitting diode for 20 s, and ramp-curing mode of plasma arc light curing units for 6 s were used. The curing tip distances were determined as 2 and 9 mm and controlled via the use of metal rings. After ageing the samples for 24 and 72 hours in Dulb…

Curing Lights DentalMaterials scienceBiocompatibilityResin compositeSignificant differenceFibroblasts:CIENCIAS MÉDICAS [UNESCO]Composite ResinsLight curingMiceOtorhinolaryngologyUNESCO::CIENCIAS MÉDICASToxicity TestsAnimalsSurgeryMouse FibroblastEvaluation periodCytotoxicityGeneral DentistryCuring (chemistry)Nuclear chemistryMedicina oral, patologia oral y cirugia bucal
researchProduct

The effect of light curing units and modes on cytotoxicity of resin-core systems

2010

Objective: The aim of this study was to compare the cytotoxic effects of various resin-based core materials that were cured with three light curing units (LCUs) in different modes on L?929 mouse fibroblast cells over 24 h and 72 h periods. Study design: Eighty-four cylindrical discs (2 mm in thickness and 6 mm in diameter) of each material (Rebilda, Voco; Build-It FR, Pentron; Clearfil DC Core, Kuraray and Bis-core, Bisco) were cured by QTH LCU (soft-up and high-power modes), LED LCU (exponential and standard modes) and PAC LCU (normal and ramp-curing modes). Then the samples were aged for 24 and 72 hours in Dulbecco?s Modified Eagle Medium/Ham?s F12 (DMEM/F12). After each ageing interval, …

Curing Lights DentalChemistryFibroblasts:CIENCIAS MÉDICAS [UNESCO]Light curingMultifactorial analysisMiceResins SyntheticOtorhinolaryngologyUNESCO::CIENCIAS MÉDICASPure cultureAnimalsSurgeryMouse FibroblastCytotoxicityGeneral DentistryCell survivalCuring (chemistry)Nuclear chemistry
researchProduct