Comparative study on AISI 440 and AISI 420B stainless steel for dental drill performance

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dc.contributor	Universitat Politècnica de Catalunya. Departament de Ciència dels Materials i Enginyeria Metal·lúrgica
dc.contributor	Universitat Politècnica de Catalunya. BBT - Biomaterials, Biomecànica i Enginyeria de Teixits
dc.contributor.author	Albertini, M.
dc.contributor.author	Herrero Climent, Mariano
dc.contributor.author	Lázaro, Pedro
dc.contributor.author	Ríos, Jose Vicente
dc.contributor.author	Gil Mur, Francisco Javier
dc.date	2012-07-15
dc.identifier.citation	Albertini, M. [et al.]. Comparative study on AISI 440 and AISI 420B stainless steel for dental drill performance. "Materials letters", 15 Juliol 2012, vol. 79, p. 163-165.
dc.identifier.citation	0167-577X
dc.identifier.citation	10.1016/j.matlet.2012.04.006
dc.identifier.uri	http://hdl.handle.net/2117/16661
dc.language.iso	eng
dc.rights	Attribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject	Àrees temàtiques de la UPC::Enginyeria dels materials
dc.subject	Stainless stee
dc.subject	Biomedical materials
dc.subject	Biomaterials
dc.subject	Drill
dc.subject	Stainless steel
dc.subject	Wear
dc.subject	Acer inoxidable
dc.subject	Biomaterials
dc.title	Comparative study on AISI 440 and AISI 420B stainless steel for dental drill performance
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/article
dc.description.abstract	One of the most usual causes of the failure in dental implant osseointegration is the increase of the temperature above 47 °C during the drilling of the bone because it produces irreversible osteonecrosis. The result is weakened contact of implants with bone and possible loss of rigid fixation. Many studies about the design of the drill bit, contact forces, drill speed, drill point angle and feed-rate have been made. However, in all studies a martensitic stainless steel (AISI 440) has been used. The aim of this study was to determine the behavior of AISI420B stainless steel with higher hardness, higher heat conductivity and lower wear than the conventional stainless steel used in oral implantology. This steel showed adequate temperature increases, with or without irrigation, and a decrease of the weight lost of the drills with use.
dc.description.abstract	Peer Reviewed

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