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HIGH WETTABILITY SURFACE TREATMENT


The focus on surfaces starts from the manufacturing process, as plant-derived, biodegradable oils that are easy to rinse off are used. After the production cycle, there is an initial cleaning stage with specific products having high environmental compatibility, chloride-free, suitable to eliminate the oils used during production and specifically designed to treat biomedical products. The pieces are then sent to a fully automated line, which includes a further 6 washing cycles and the corresponding treatments in ultrasound trays with final drying.  

ACID TREATMENT (S-Double Etch)

The Evolution2000 ST and SF and MF Mini implants undergo a micro-retentive Sandblasting treatment with subsequent Double Etching (S-Double Etch) that is able to increase the surface by making it micro-retentive, even and peak-free, thereby promoting improved osseointegration.

OXIDATION TREATMENT (Nanosurface)

The morphology of Evolution2000 MC and SP Nanosurface implants is obtained by means of a controlled oxidation process that results in a micro and nano retentive surface consisting of Titanium Oxide enriched with phosphorous and calcium. This surface promotes cell proliferation thereby improving and accelerating the osseointegration process. The morphology of Evolution2000 MC and SP Nanosurface implants is obtained by means of a controlled oxidation process that results in a micro and nano retentive surface consisting of Titanium Oxide enriched with phosphorous and calcium. This surface promotes cell proliferation thereby improving and accelerating the osseointegration process.

BENEFITS OF HIGH WETTABILITY SURFACES (1 , 2)

The surfaces of Evolution implants undergo special manufacturing processes involving Sandblasting/Double Acidification or Controlled Oxidation that, together with perfect decontamination, lead to a surface with very low surface tension and very high wettability that is able to:
• turn the implant surface in contact with the bone matrix into a catalyst capable of adsorbing proteins;
• guarantee a strong presence of growth factors;
• stimulate osteoblast proliferation;
• accelerate the production of new bone matrix. These cellular processes lead to an increase in the binding force in the bone-implant interface and reduce bone remodelling time (‘window’ period).

Bibliografia: 
1) Sartoretto SC, Alves AT, Resende RF, Calasans-Maia J, Granjeiro JM, Calasans-Maia MD. Early osseointegration driven
by the surface chemistry and wettability of dental implants. J Appl Oral Sci. 2015 May-Jun;23(3):279-87.
2) Hotchkiss KM1, Reddy GB1, Hyzy SL1, Schwartz Z1, Boyan BD2, Olivares-Navarrete R3 . Titanium surface characteristics,
including topography and wettability, alter macrophage activation. Acta Biomater. 2016 Feb;31:425-34.

COLD PLASMA DECONTAMINATION

Allmed applies special attention and care to this process, which is carried out in a clean room and involves double decontamination with cold Argon plasma.

The treatment is carried out under vacuum and consists in energising a gas (Argon), which breaks down, ionises and bombards the surface of the implant thus decontaminating it; these results are impossible to obtain by just using liquids.

In addition to the mechanical effect, a chemical reaction that breaks down the organic molecules and eliminates them in the form of water and carbon dioxide is made use of.