BWS®: EXCELLENCE IN OSTEOINTEGRATION

Features of the BWS® Surface

The BWS® implant surface is created by Dental Tech through a process of sandblasting with pure Alumina followed by acid-etching to eliminate any remaining particles. This dual process results in extremely clean surfaces which have optimum roughness to promote cellular adhesion.

Surface Cleaning

The extreme level of cleanliness realised by Dental Tech through careful protocols and meticulous inspections, promotes intense cellular activity on the surface of the implants which, in combination with surface roughness, guarantees quick stabilisation of the clot.

Optimal roughness

The processes of sanding and acid-etching the implant surface allow optimum values of surface roughness to be achieved, resulting in enhanced adhesion of the fibrin to the surface which facilitates bone growth, significantly reducing healing times. The ability of the BWS® surface to retain fibrin allows osteoblasts to migrate from the bone to the surface, itself, where they then reproduce, growing new bone in direct contact with the titanium (osteointegration).

Inspecting roughness and cleanliness of the implant surface

The procedure described above includes taking a sample from each production lot which is then subjected to SEM and MICRO-ANALYSIS. SEM is useful for identifying any contamination present on the device while the latter is used to evaluate surface quality and quantity.

View of the bottom of the coil

The surface when viewed using the Back-Scattering method (image to the right) allows the presence of any carbon particles to be excluded from the observed area.

At higher magnifications (images below), a rough, extremely segmented morphology is observed, which allows the coagulate to adhere perfectly to the implant surface and facilitates contact Osteointegration; the photo below shows the degree of cellular adhesion after 6 hours of contact. The implant is then inspected in its entirety to ensure there are no signs of contamination. A 3D reconstruction of the surface is then performed to measure roughness and check that it remains regular over time.

Wettability

The roughness associated with plasma treatment significantly reduces the percentage of carbon present, resulting in BWS® having a lower surface tension.

This allows the blood to adhere perfectly to the micro structures on the implant surface during insertion, and facilitates the subsequent steps which lead to stabilisation of the clot.

Bagnabilità superficie bws
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Note how the blood spontaneously rises up the coils of the implant during insertion; this is due to the reduced surface tension of BWS®.

Clinical Benefit

Thanks to its intrinsic characteristics, the BWS® surface offers different advantages to the clinic and its patients:

 

  • Earlier loading of the implants is possible (2/3 months) reducing the timescale for prosthetic implant treatment;
  • The guarantee of osteointegration, in accordance with international standards, results in operational security and peace of mind;
  • It is possible to use the implants for all bone types.

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