NANO ACTIVE SURFACE - Nova İmplantnovaimplant.com/wp-content/uploads/2013/katalog/urunler/...supporting connective tissue can migrate”. Applied to oral implantology, this thus refers

IMPLANTS

Implant surface topography refers to macroscopic and microscopic features of the implantsurface. The success rates of different commercially available implant systems vary. Severalimplant-related factors such as implant surface topography, chemical composition andsurface roughness influence osseointegration. Titanium implants with adequate roughnessinfluence the primary stability of implants, enhance bone-to-implant contact, and increaseremoval torque force.

NANO ACTIVE SURFACEImplant surface topography & osseointegration

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The surface roughness of the implants cansignificantly alter the process of osseointegrationbecause the cells react differently to smoothand rough surfaces: osteoblastic proliferationand collagen synthesis are increased on roughsurfaces.NNNOOOVVVAAA focused its research on the factor ofsurface roughness and we used various techniquesin order to compare our results with the best,universally recognized implant manufacturers.

NNNOOOVVVAAA large dimples vary in size and measure up to 50 µm while Straumann’s are 20-40 m. The average size of small dimples in both samples is approximately 2-4 m. The average depth of the large dimples is also comparable in the range of 6.4 µm which meets the standard requirements in stomatology.

These results were obtained through metallographic implant surface cross-section analysis in two locations: the base and at the end of the implant. The analysis accurately determined the depth and width of the dimples, as well as their geometry which is clearly visible on the image above. The surface is well-developed with large and small dimples which enhance osseointegration.

Nano-surface process - 30 m

Cross-section Through Implant Surface Micrographic View

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It is well established that the cell behavior on ahydrophilic surface is completely differentfrom that on a hydrophobic one. Ahydrophilic surface is much better for osteoblastingprocess than a hydro-phobic surface. Therefore dental implants have been developedwith high hydrophilic properties.

NNNOOOVVVAAA made chemical modifications for the Nano-surface resulting in increased wettabil-ity (i.e., in a hydrophilic surface rather than a hydrophobic one). In NNNOOOVVVAAA technology thesurface activity is achieved by using a mixture of components including hydroxyapatitebio-material as well as phased acid surface treatment. Several tests have been performedon NNNOOOVVVAAA implants showing high activity and excellent hydrophilic property.

Wetting properties

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SSSooo wwwhhhaaattt iiisss aaallllll ttthhheee fffuuussssss aaabbbooouuuttt SSSuuurrrfffaaaccceeeTTTrrreeeaaatttmmmeeennnttt QQQuuuaaallliiitttyyy iiinnn MMMeeedddiiicccaaalll IIImmmppplllaaannntttsss?

But First, Osseointegration? Lets get down to the Surface Treatment Basics:

FFFiiirrrsssttt ooofff aaallllll wwwhhhaaattt iiisss aaa MMMeeedddiiicccaaalll IIImmmppplllaaannnttt?A medical implant is a device manufactured to replacea missing biological structure, support a damaged biologi-cal structure, or enhance an existing biological structure.Medical implants are man-made devices, in contrast toa transplant, which is a transplanted biomedical tissue.

WWWhhhyyy SSSuuurrrfffaaaccceee TTTrrreeeaaattt ttthhheeemmm?The surface of implants that contact the body might bemade of a biomedical material such as titanium, siliconeor apatite depending on what is the most functional.Under ideal conditions, implants should initiate thedesired host response. Ideally, the implant should notcause any undesired reaction from neighboring ordistant tissues. However, the interaction between theimplant and the tissue surrounding the implant canlead to complications. The process of implantation ofmedical devices is subjected to the same complicationsthat other invasive medical procedures can have duringor post surgery along with several different complications.Common complications include infection, inflammation,and pain. Other complications that can occur includerisk of rejection from implant induced coagulation andallergic foreign body response. Depending on the typeof implant, the complications may vary.

SEMx4000 microscopic pores0.5 to 10 wide 3-5 deep

SEMx2000 Surface structurehomogeneous caverns post

abrasive blasting

Osseointegration explainedThe rough surface of the implant is good for itsosseointegration and cellular response. Studies haveshown that the best bone growth corresponds tosurface cavities size of approximately 10 . Growth ofthe bone tissue in such implant cavities provides afirm mechanical interlock between the implant andthe bone.

So now we know that if an Implant is rejected we would be posed in a big issuestarting with the complications all the way to the removal of the rejected Implant.The goal of the Surface Treatment procedure is to make the Surface of the Implantactive.

A treated and active Implant surface will ensure better reception of red blood cells bythe body and enable faster and better bone and tissue growth towards the Implant,while greatly reducing the instances of rejected Implants.

OOOsssssseeeoooiiinnnttteeegggrrraaatttiiiooonnn ?Osseointegration, the term refers to the direct structural and functional connection be-tween living bone and the surface of a load-bearing artificial implant. Osseointegrationcan be enhanced by the science of medical bone and joint replacement techniques.Osseointegration is also defined as : “The formation of a direct interface between animplant and bone, without intervening soft tissue”. Osseointegrated implant is a type ofimplant defined as “an endosteal implant containing pores into which osteoblasts andsupporting connective tissue can migrate”. Applied to oral implantology, this thus refersto bone grown right up to the implant surface without interposed soft tissue layer. Noscar tissue, cartilage or ligament fibers are present between the bone and implantsurface. The direct contact of bone and implant surface can be verified microscopically.What we always seek is the best Osseointegration possible.

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P.O.B. 2318, Kiryat Ono, 55122, IsraelTel: +972 (0)54 752 8166. Telefax: +972 (0) 77 352 8166 Website: nova-implants.com

MEDICAL DEVICES & DEVELOPMENTIMPLANTS