Hoffmann_Silan
In clinical use for a quarter of a century (Roulet 1989 Theiss 2009)

Areas of Application

  • To increase the chemical bonding force during adhesive cementation of silicate ceramics, silicated oxide ceramic or metal restorations with methacrylate bearing cementation materials (composites, compomers and ormocers)
  • As a ceramic-composite bonding agent for ceramic repairs

 

Benefits of Hoffmann’s two-component silane

  • Full reaction force as the reagents are mixed freshly before each use
  • Longer shelf life after opening the bottle
  • Optimal chemical bonding surface with simultaneous good surface wettability
  • Prevention of adhesion defects

 

HOW IT WORKS

The reagents A and B of Hoffmann’s silane are mixed 1:1, which creates silanol, the reactive agent. Silicate-based ceramics, such as leucite glass ceramic (IPS Empress) and fluoroapatite-ceramic (IPS-e. Max ZirPress) are first etched with hydrofluoric acid to form a micro-retentive, crystalline surface structure.
During silanization of the silica surface, a chemical bond between silanol and ceramic is formed through the reaction of the methoxy group of the silanol with the silicon oxide group of the ceramic with the formation of Si-O-bridges.
The short hydrocarbon rests of the silanols have a reactive double bond, which can then polymerize onto the adhesive composite.

 

SILANE
Order No. Package size Colour Composition
82101 Component A, 5 ml
Component B, 5 ml
Acetic acid in ethanol solution, 3-methacryloyloxypropyltrimethoxysilane in ethanol solution

 

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