. Le-matériau and . Mis-au-point-en, Imperial Chemical Industries), est commercialisé depuis 1978-1979, et employé dès les années 1980 en orthopédie, en traumatologie et en chirurgie rachidienne pour la fabrication de cages intersomatiques Dès la fin des années 1990, il s'impose comme la meilleure alternative non, 1977.

E. Avril, le premier dispositif implantaire en PEEK pur, nommé PEEK-OPTIMA?, répondant aux normes CE (conforme aux exigences de la Communauté Européenne) et FDA (Food and Drug Administration) est mis sur le marché, 1998.

P. Le, excellentes propriétés mécaniques, physiques et chimiques, avec des constantes telles qu'une dureté (99-126 sur l'échelle de Rockwell, et un module d'élasticité (4GPa) avoisinant davantage celui de l'os cortical (20GPa), que le Titane

. Le, PEEK a été utilisé pour la réalisation de prothèses maxillo-faciales chez les patients présentant des défauts de cloisonnement des sinus ou des cavités nasales, et de la cavité buccale [37], mais également pour les reconstructions cranio-faciales

. De-ce-fait, le deuxième facteur que nous avons étudié est le comportement de la Zircone, alternative non métallique au Titane, au sein des tissus-hôtes, à savoir osseux et gingivaux

. Tout-comme-le-titane, la Zircone en entourée d'une couche d'oxydes métalliques, les oxydes de zirconium ZrO2

B. Néanmoins and . Que-parfaitement-intégrée-par-les-tissus-mous, Zircone est limitée par ses propriétés mécaniques, à savoir sa dureté importante (1200 Hv sur l'échelle de Vickers) et son module d'élasticité élevé (210 GPa), entrainant un fragilité du matériau de ce fait cassant, mais ayant également des répercussions sur le tissus osseux, car générant sur celui-ci un phénomène de stress-shielding entrainant une ostéolyse

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