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Fracture and fatigue of titanium narrow dental implants: New trends in order to improve the mechanical response

2019

Sixty-four fractured commercially pure titanium (cp-Ti) narrow dental implants (NDIs) with similar macrogeometry and connection designs were studied after different implantation times in humans in order to determine their reliability and to evaluate the causes of the fracture. These NDIs were compared with other similar implants, made with alloyed titanium with 15% Zr and with 12% strained titanium. Original implants were tested under static and fatigue conditions, simulating the tri-axial loads in the mouth by means of a Bionix hydraulic test machine. Fractography was studied using field-emission scanning electron microscopy (FSEM). The results showed that cp-Ti NDI exhibits low strength f…

plastic deformationMaterials sciencePassivationScanning electron microscopenarrow dental implantsMaterials -- Fatiguechemistry.chemical_elementFractography616.3:Enginyeria biomèdica::Biomaterials [Àrees temàtiques de la UPC]02 engineering and technologyArticle03 medical and health sciencesMecànica de fractura0302 clinical medicineMachiningMaterials -- FatigaFracture mechanicsGeneral Materials SciencetitaniumComposite materialPlastic deformationFatigueNarrow dental implantsTitaniumCommercially pure titaniumImplantes dentalesImplants dentalsDental implantstechnology industry and agricultureMateriales -- Fatiga030206 dentistryDentistry -- MaterialsTitani021001 nanoscience & nanotechnologyequipment and suppliesFatigue limitFracturechemistryTitaniofractureFracture (geology)Odontologia -- Aparells i instrumentsfatigueOdontología -- Material y equipo0210 nano-technologyTitanium
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