Utilize este identificador para referenciar este registo: http://hdl.handle.net/10451/34470
Título: Sphere‑plane methodology to evaluate the wear of titanium of dental implants: a research proposal
Autor: Mendes, Teresa Almeida
Caramês, João
Lopes, Luís Pires
Ramalho, Amílcar Lopes
Palavras-chave: Dental implants
Wear
Radial fretting
Abutment
Titanium
Zirconia
Data: 2018
Citação: Mendes TA, Caramês J, Lopes LP, et al. Sphere‑plane methodology to evaluate the wear of titanium of dental implants: a research proposal. BMC Res Notes. 2018;11:2-6.
Resumo: Objective: Titanium is the most commonly used material to manufacture dental implants and abutments. Recently, zirconia abutments have been manufactured with better aesthetic properties. However, zirconia abutments are harder than titanium implants; therefore, they could wear the implant surface. Therefore, this article aims to describe a sphere-plane system that can be used to assess the wear that different abutment materials cause in the titanium of dental implants when submitted to cyclic loading. This method can be used to simulate the oral cavity, where the abutment (sphere) applies loads onto the implant (titanium plane). The spheres were made of different materials (titanium and zirconia), and the specimens were loaded for 4,000,000 cycles. The scar size and area on titanium planes were measured with stereoscopic images and analysed through profilometry. Results: The wear of titanium planes was similar when tested against zirconia or titanium spheres. The sphereplane system is a method that can be used to evaluate and quantify the wear of the titanium of dental implants, and compared with methods that use real implants, this system is simpler and less expensive. This method could facilitate further research to evaluate the wear of titanium against different materials and under different testing conditions.
Peer review: yes
URI: http://hdl.handle.net/10451/34470
Aparece nas colecções:FMD - Artigos em Revistas Internacionais

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