3M ESPE has launched a new posterior composite that shrinks less than 1%. Filtek Silorane features 'ring-opening' chemistry which works at the molecular level to dramatically reduce shrinkage, compared to methacrylate-based composites.

As the silorane-based composite polymerises, ring-opening monomers connect by opening, flattening and extending toward each other. As methacrylate-based composites cure, the molecules of these linear monomers connect by actually shifting closer together in a linear response. The result is a loss of volume.

The new ring-opening polymerisation regime requires the use of a dedicated system adhesive: Silorane System Adhesive Self-Etch Primer and Bond. The self-etch adhesive is available in two vials which must be used consecutively; Silorane Self-Etch Primer used prior to Silorane Bond.

Combined with Silorane primer and bond, Filtek Silorane restorative provides a simple posterior restorative system for dentists who value low shrink technology. The complete restorative system features four popular radiopaque shades, in one opacity level and is delivered in capsules and syringes.

Reader response number 52