Biomaterials & Biodevices
Manuel Aparicio-Razo; José Luis Jr. Mongalo-Vázquez; J. A. Yáñez Ramos; Adolfo Navarro-Zárate; Víctor Hugo Santos-Enríquez; Israel Vivanco-Pérez; J. Flores Méndez; Genaro Alberto Paredes-Juárez
Abstract
This review article presents the biological and technological properties of biomaterials: titanium, polyetheretherketone, zirconium and Si3N4, focused on the application of dental implants. The methodology focused on examining different works related to the topics of biocompatibility, biofilm formation ...
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This review article presents the biological and technological properties of biomaterials: titanium, polyetheretherketone, zirconium and Si3N4, focused on the application of dental implants. The methodology focused on examining different works related to the topics of biocompatibility, biofilm formation and adhesion properties, fibroblast proliferation, bone resorption, peri-implant infection, osseointegration, histology, cytotoxicity, toxicity, carcinogenicity, genotoxicity, hemocompatibility, vascularization, mechanical resistance and approval for use by the FDA. The results of the review show that all four biomaterials have favorable properties that can revolutionize implants, however, more studies are needed to confirm the results in the short and medium term.
Cristhoper E. Jaimes Martínez; J. Flores Méndez; Gustavo M. Minquiz; Pablo Gutiérrez Cruz; Fernando Medina Pérez; A. C. Piñón Reyes; Janette Castro Hernández; René Pérez Pérez
Abstract
In this work, a numerical methodology is implemented applying the computational finite element method for a pair pinion-crown of bevel gears in spiral of the differential system of a compact Sport Utility Vehicle (SUV), with the objective of establishing a criterion of the results to characterize the ...
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In this work, a numerical methodology is implemented applying the computational finite element method for a pair pinion-crown of bevel gears in spiral of the differential system of a compact Sport Utility Vehicle (SUV), with the objective of establishing a criterion of the results to characterize the failure of the gear pair during its operation. To do this, from a CAD model obtained by 3D scanning, the numerical results of the structural case are compared by correlating the transient, fatigue, modal and harmonic studies between a pair of gears without damage and another pair with a damaged (chipped) tooth on the pinion. It is observed that from the harmonic response of stress and vibration, a criterion can be established to differentiate the new pair of gears from the damaged pair, the latter presenting a frequency response pattern with high values with respect to the first. The above may be a reference option for detecting the failure of spiral bevel gear pairs used in automobile differential system.
