Root canal posts are widely used and come in a variety of metals and forms. However, metal posts do present inconveniences: they require mechanical fixation, from the root canal to the core material.
The elasticity modulus of a metal post, whatever the metal, is much higher than the elasticity modulus of the dentin, and this high rigidity may cause tooth cracks or fractures. Today's research is directed toward substitute materials having an elasticity modulus closer to that of the dentin. The purpose is to ensure a progressive and regular distribution of stress all along the length of the tooth, thus preventing fissures or fractures. |
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THE IDEAL ROOT CANAL POST |
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| What should be expected of the ideal root canal post? |
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First of all, it should not further weaken a tooth that has already been endodontically treated. Instead, it should allow a reconstitution while preserving a maximum of healthy dentin. |
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The tooth reconstitution should have an elasticity modulus close to that of the dentin. |
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The ideal post material and the associated core composite material should be similar, thus permitting a homogeneous reconstruction on a mechanical as well as a chemical point of view. |
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The ideal post should enable the use of the bonding resin cements used today in dentistry, allowing the adhesion between the root canal wall/post/core composite interfaces. |
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The ideal post should permit a quick, simple and affordable procedure. |
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This post should also be bio-compatible, radiopaque and easy to remove if necessary. |
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Finally, the color of the post should be adapted to the demands of esthetic dentistry. |
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SNOWPOST® & SNOWLIGHT® COMPOSITE POSTS |
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| SNOWPOST® & SNOWLIGHT® composite posts are the result of a double scientific approach: the study of the mechanical behaviour of a tooth during function on the one hand, and research into industry's most high-tech materials adaptable to dentistry on the other hand. |
SNOWPOST® & SNOWLIGHT® COMPOSITE POSTS,
YOUR PARTNERS IN THE UP-TO-DATE ADHESIVE DENTISTRY |
SNOWPOST® & SNOWLIGHT® posts are white root canal posts made of composite material: unidirectional, longitudinal glass fibers for strength, embedded in a resin matrix for shock absorption.
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SNOWPOST® posts are made of zircon-rich glass fiber embedded in an epoxy resin matrix.
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SNOWLIGHT® posts are made of zircon-rich glass fiber embedded in a polyester-methacrylate resin matrix, thus allowing the transmission of light. |
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Thanks to the zircon-rich glass fiber,
SNOWPOST® & SNOWLIGHT® composite posts present an acceptable radiopacity. |
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SNOWPOST® & SNOWLIGHT® posts are silanated during fabrication,
allowing a real chemical adhesion to core composites, bonding agents and resin cements. |
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The result is a homogeneous, reliable and durable all-composite restoration
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SNOWPOST® & SNOWLIGHT® COMPOSITE POSTS, GENTLE FOR TEETH,
IDEAL POSTS FOR NON-INVASIVE DENTISTRY
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SNOWPOST® & SNOWLIGHT® posts respect the physiology of the tooth and allow the maximum tooth preservation.
It is known today that a post does not reinforce the tooth and that a wide reaming of the root canal further weakens the root.
With SNOWPOST® or SNOWLIGHT® posts, the old precept that the diameter of the post should be equal to one-third of the root diameter is obsolete: the natural diameter of the canal only needs to be slightly enlarged.
Using a bonding resin cement, a smaller diameter SNOWPOST® or SNOWLIGHT® post adheres to the core composite better than a larger diameter conventional metal post with mechanical retentions. |
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With SNOWPOST® & SNOWLIGHT® posts, the diameter of the canal determines the diameter of the post and not the opposite. |
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Anatomical shape:
the long, apical, cylindrical shape of SNOWPOST® & SNOWLIGHT® posts matches the anatomy of the root canal.
Different diameters (from 1 to 1.6 mm) make their use possible in practically all cases, even for very slender root canals: the lower incisors, upper premolars, the mesial canals of the lower molars and the vestibular canals of the upper molars. |
The best material available is the remaining dentin of the tooth, the use of SNOWPOST® or SNOWLIGHT® posts allows to spare this precious dentin and to restore the tooth in a gentle physiological way as close as possible to the healthy tooth behavior.
The only contra-indications for using glass fiber composite posts are:
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when the tooth is erased at the gingival level with no remaining coronal walls or if these remaining walls are less than 2 mm in height, in this case, a cast core is more indicated if the prosthetic abutment can rest on dentin |
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when a part of the remaining crown is under gingiva, the joint between composite and root being in gingiva fluids cannot be trusted, then a cast core is more indicated. |
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SNOWPOST® & SNOWLIGHT®COMPOSITE POSTS, THE IDEAL POSTS FOR
ESTHETIC DENTISTRY, AND MORE ! |
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SNOWPOST® & SNOWLIGHT® posts are white, thus answer the demands of esthetic dentistry. |
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SNOWPOST® & SNOWLIGHT® posts allow a quick and simple tooth reconstitution, in one session, at chairside, in less than 15 minutes. |
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SNOWPOST® & SNOWLIGHT® posts are chemically inert and bio-compatible, their composite material eliminates the risks of corrosion and bi-metallic reactions. |
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SNOWPOST® & SNOWLIGHT® posts are easily removed if necessary. |
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SNOWPOST® & SNOWLIGHT® posts can be cleaned with all the soaking products in use for dental decontamination and they are autoclavable up to 135° C. |
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