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Développement d'un instrument endodontique en alliage à mémoire de forme monocristallin cuivreux

Abstract : Many advances have been made in terms of instrumental geometry, working motion and manufacturing processes of endodontic files. However, since the discovery of Nickel-Titanium (NiTi) shape memory alloys (SMA), few research has been carried out on new SMAs. In this context, this work aims to develop an endodontic instrument machined from a new SMA with very promising mechanical and antimicrobial properties: the single crystal CuAlBe. Following a finite element analysis in order to determine adequate geometric parameters for a single crystal CuAlBe SMA endodontic instrument, prototypes were machined and tested following a continuous rotation penetration / removal (P/R) protocol in artificial canals. Endodontic files made of NiTi SMA, already commercialized, were also tested with the same protocol. The aim of this researches is to show that CuAlBe endodontic instruments could lead equivalent mechanical performances to NiTi instruments in addition of their antimicrobial properties
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Submitted on : Monday, December 11, 2017 - 11:28:46 PM
Last modification on : Thursday, January 11, 2018 - 6:27:33 AM

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  • HAL Id : tel-01661408, version 1

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Marin Vincent. Développement d'un instrument endodontique en alliage à mémoire de forme monocristallin cuivreux. Mécanique des matériaux [physics.class-ph]. Université de Lorraine, 2017. Français. ⟨NNT : 2017LORR0137⟩. ⟨tel-01661408⟩

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