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Arman Kamranianfar40169241Reza Farajdadian40174180Dolapo Adeoya40161456Zahra Aboonasr Shiraz40165323Group 9 PresentationAdvanced Materials in DentistryInstructor:Professor Dmytro Kevorkov1
Advanced Materials In DentistryCeramicsComposites2IntroductionGeneral Introduction2
Advanced ceramics:ideally suited for industrial applications that require components with the ability to withstand hightemperatures, vibration, corrosion and oxidation resistance and mechanical shockexhibiting a high degree of industrial efficiencyused in specialized, recently developed applicationsoften have simple chemical compositions, but they are difficult to manufactureIntroductionCeramics in General3Ceramics in IndustryAerospace EngineeringVehicle and AutomotiveEngineeringElectronicsEquipment and MechanicalEngineeringMedical Technology
IntroductionDental CeramicsHistory4
IntroductionCeramicsManufacturing5
IntroductionCompositesManufacturing6FRP Shaping ProcessShort FibersContinuous Fiber
IntroductionCompositesManufacturing (Short Fibers)7Short FibersOtherClosed MouldOpen MouldSpray MethodCompression MouldingCentrifugal CastingTransfer Moulding
IntroductionCompositesManufacturing (Continuous Fibers)8Continuous FiberOpen MouldClose MouldFliament WindingPultrusion ProcessHand LayupCompressionRTM-VARTMAutomated TapWinding
Advanced CeramicsIn Dentistry9
Dental ceramics classificationCompositionCrystallinecontentFeldspathic(K2O, Al2O3, 6SiO2)Leucite-reinforced(K2O, Al2O3, 4SiO2)Lithium Disilicate-reinforced(Li2O.2SiO2)Alumina (aluminum oxide)(Al2O3)Zirconia(ZrO2)Predominantly glassPolycrystalline ceramicsGlass-infiltrated ceramicsAdvanced Ceramics In DentistryDental ceramics classification10
PropertiesBiocompatibleMimic the optical propertiesof enamel and dentinResistant to crystallizationBrittlePropertiesIncreased mechanicalpropertiesMaintaining some translucencyPropertiesTougher and stronger than glassceramicsMore difficult to process intocomplex shapeOpaqueAdvanced Ceramics In DentistryClassification of dental ceramics according to crystalline content11
Composition: 70-75% potash feldspar (K2OAl2O36SiO2), 3-5% kaolin (Al2O3 ,2SiO2 ,2H2O) as binder, 15%-20% quartz(SiO2) as crystalline phaseApplicationEnamel tissueVeneering of infrastructures and frameworksAdvantagesDisadvantagesVery estheticBiocompatibleThermal properties aresimilar to those of enameland dentineLow flexural strength (65 MPa)High hardness (6.987.48 GPa) - (abrasionto antagonist natural dentitions and difficultto adjust and polish)Low tensile strength (29 - 40 Mpa)BrittleFeldspathic VeneersAdvanced Ceramics In DentistryFeldspathic ceramics(K2O, Al2O3, 6SiO2)12
Leucite-reinforced ceramic is feldspathic ceramic that is reinforced by leucite (35 - 45 vol%)AdvantagesDisadvantagesHigher Compressive strength thanFeldspathicGood translucencyHigher flexural strength (160 Mpa) thanFeldspathicBiocompatible

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Strength of materials, Tensile strength, Fiber Reinforced Composites In Dentistry, Composites In Dentistry

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