Nanohybrid scratch resistant coatings for teeth and bone viscoelasticity manifested in tribology |
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| Authors: | Agustin?de?la Isla,Witold?Brostow mailto:brostow@unt.edu" title=" brostow@unt.edu" itemprop=" email" data-track=" click" data-track-action=" Email author" data-track-label=" " >Email author,Bernard?Bujard,Miriam?Estevez,J.?Rogelio?Rodriguez,Susana?Vargas,Victor?M.?Casta?o |
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| Affiliation: | (1) , Laboratory of Advanced Polymers and Optimized Materials (LAPOM), Department of Materials Science & Engineering, University of North Texas, PO Box 305310, Denton, TX 76203-5310, USA,;(2) , Doctorado en Ciencia e Ingenieria de Materiales, Universidad Autonoma del Estado de Morelos, Cuernavaca, Morelos, Mexico,;(3) , Licenciatura en Odontologia, Facultad de Medicina, Universidad Autonoma de Queretaro, Clavel 200 Prados de la Capilla, Queretaro, Qro., Mexico,;(4) , Centro de Fisica Aplicada y Tecnologia Avanzada (CFATA), Universidad Nacional Autonoma de México, Apartado Postal 1-1010, Queretaro, Qro. 76000, Mexico, |
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| Abstract: | ![]()
We cover teeth surfaces with nanohybrid coatings containing an inorganic ceramic and an organic copolymer constituents. We report the first ever values of scratch penetration depth and scratch recovery for bare and coated teeth. We find that uncoated teeth undergo viscoelastic recovery (healing) after microscratching – the first manifestation of bone viscoelasticity in tribology. The coatings fill "valleys" in teeth surfaces. In each case a large improvement in the scratch resistance as compared to uncoated teeth is seen. The extent of the improvement depends on the inorganic/organic component ratios in the nanohybrids. Electronic Publication |
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| Keywords: | Nanohybrids Inorganic + organic materials Viscoelasticity in tribology Teeth coatings Bone viscoelasticity |
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