Straumann® SLActive®

Au-delà des propriétés hydrophiles — la science de la haute performance

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Nano-structures distinctes présentes sur la surface SLActive®27,28

Les nano-structures distinctes, découvertes sur la surface SLActive®, prouvent pour la première fois que la topographie de la surface SLActive® diffère de celle de SLA®.

Roxolid® SLA®

Roxolid® SLActive®

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Les nano-structures sur SLActive® augmentent la surface de plus de 50 %25

La surface de l’implant augmente : de plus de 50 % par rapport à Roxolid® SLA®.

Comment maximiser la surface de l’implant ?

  • La plus grande surface en contact avec l’os augmente le COI*32
  • La microrugosité de SLA®/SLActive® augmente la surface d’au moins 100 % par rapport à la surface usinée26
  • En outre, les nano-structures augmentent de plus de 50 % la surface de SLActive®25

*COI = contact os-implant

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La recherche avancée in vitro montre que les nano-structures favorisent l’ostéointégration précoce23,24

Meilleure formation du réseau de fibrine sur SLActive® avec des nano-structures.23,24 Imagerie par microscopie électronique à balayage de la formation d’un réseau de fibrine sur Roxolid® SLActive® (incubation de 15 min dans du sang total humain).*

Surface de Roxolid® SLActive® sans nano-structures**

Surface de Roxolid® SLActive® avec nano-structures

Les dernières recherches in vitro suggèrent que les propriétés hydrophiles seules n’expliquent pas entièrement l’accélération de l’ostéointégration associée aux propriétés de la surface SLActive®. De nouvelles données indiquent que les nano-structures sur la surface SLActive® favorisent la formation d’un réseau de fibrine et la minéralisation, facilitant ainsi les phases précoces de l’ostéointégration. En effet, SLActive® avec des nano-structures montre un plus haut niveau de formation d’un réseau de fibrine et de minéralisation de cellules osseuses par rapport à SLActive® sans nano-structures (in vitro).23,24

* Empa, Laboratoires fédéraux suisses pour les sciences et la technologie des matériaux. www.empa.ch
** Surface expérimentale pour l’étude de l’effet des nano-structures

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Minéralisation osseuse plus importante sur SLActive® avec nano-structure23,24

Minéralisation des cellules osseuses humaines mesurée après 28 jours sur des surfaces incubées dans du sang. Résumé des concentrations en Ca2+ à la fin de la culture en fonction de la surface.*

* Empa, Laboratoires fédéraux suisses pour les sciences et la technologie des matériaux. www.empa.ch
** Surface expérimentale pour l’étude de l’effet des nano-structures

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Références

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