CARBOPOST® composite posts are unidirectional, longitudinal fiber reinforced composite posts, made of T700 carbon fibers embedded in an epoxy resin matrix.
CARBOPOST® composite posts are radiopaque, thanks to a baryum filler in the resin matrix.
CARBOPOST® composite posts are factory silanated, allowing the use of resin bonding cements and core composite, and giving a homogeneous all-composite corono-radicular restoration.
CARBOPOST® composite posts avoid bi-metallism and corrosion, are bio-compatible, and are easy to remove if necessary.
CARBOPOST® composite posts can be cleaned with all the soaking products in use for dental decontamination and are is autoclavable up to 135° C.
CARBOPOST® composite posts have a high E-modulus and have the same mechanical behaviour as metal posts. But they are composite posts and the epoxy resin matrix has a real shock absorbing effect.
UD COMPOSITE POST REDUCES SHEAR STRESS BY 50% ! |
In the case of metal posts the stress is fully and immediately transmitted to the root.
With composite posts, thanks to both the shock absorbing effect of the resin matrix and the thickness of the adhesive cement used for sealing the post, the stress is transmitted progressively and regularly to all the coated surface:
the use of composite posts even with as high a rigidity as the CARBOPOST® composite post reduces shear stress by 50%.
The bonding cement and core composite of the tooth restoration are respected thanks to the shear stiffness and the low transversal modulus. |
|
Carbon posts had two handicaps, their black color and their non radiopacity: Carbopost® composite posts are radiopaque and grey colored like titanium.
A carbon post that is radiopaque, medium grey, corrosion free, shock absorbing, silanated and that shows a real chemical adhesion with the core composite and bonding cement, is a real good post.
Some practitioners feel secure when using a rigid post: with CARBOPOST® composite posts, they can keep their convictions on rigid posts and be glad to move to today's adhesive and non-invasive dentistry by using a composite post "as strong as metal."
Mechanical Properties * |
|
Density |
Axial Ex Elasticity Modulus |
Transversal Ey Elasticity Modulus |
Shear Strength |
Flexural Strength |
Carbopost® |
1.55 |
141 GPa |
8.9 GPa |
23.9 MPa |
1768 MPa |
*These data are indications and may vary depending on the lot.
SEM photography by Dr Olivier MOYEN |
Form and Dimensions |
| Length of post |
19 mm |
| Diameters |
1.0, 1.2, 1.4, 1.6 mm |
| Cone angle |
3° |
| Length of cone |
4 mm for 1.0 mm diameter
4 mm for 1.2 mm diameter
5 mm for 1.4 mm diameter
6 mm for 1.6 mm diameter |
|
