Ivoclar Vivadent SR Adoro - Manual (Page 30)

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Finishing and Polishing
Finishing
After completion of the polymerization / tempering procedure, completely remove SR Gel from the restoration using
running water and/or a steamer. Carefully remove the restoration from the die while it is still warm. If the restoration is
removed at a later stage, it is advisable to warm up the stone die by means of water vapour. Finish the restoration with
cross-cut tungsten carbide burs and fine diamonds. It is advisable to use low speed and light pressure. Make sure to
rework the entire restoration to remove the inhibition layer of approximately 30 microns from all surfaces. Carefully taper
the margins of the restoration, lightly grind the margins, and adjust proximal and occlusal contact points. After that,
create a lifelike surface structure, such as incremental lines and convex/concave areas.
Prepolishing
Smooth out the surface (convex areas) of the natural structures, as well as the marginal ridges with rubber polishers and
silicone polishing wheels so that they exhibit an extra lustre after high-gloss polishing.
High-gloss polishing
The restorations are polished to a high gloss using cotton or
leather buffing wheels, as well as the Universal Polishing
Paste. Use low speed and slight pressure for high-gloss
polishing. Adjust the pressure at the handpiece, not with
the polishing motor. In order to optimally polish the
distinctive areas (palatal fossa), we recommend modifying the
goat hair brush to become star-shaped so that only the
desired areas can be polished due to the smaller size of the
brush. Depending on the type of high gloss desired, leather
buffing wheels can be used to achieve a high shine, while
cotton buffers are used to achieve a lesser degree of lustre.
SR Adoro anterior crown polished to a high gloss.
– Microroughness on the finished veneering surface is conductive to plaque accumulation. Therefore, polish
carefully.
– Pay particular attention to crown margins, proximal areas and palatal surfaces.
It is essential to cement framework-free SR Adoro restorations using an adhesive cementation technique.
In order to achieve a chemical bond with the luting composite, the cavity side of the restoration has to be carefully blasted
with Al
2
O
3
at 1 bar (15 psi) pressure in the laboratory. Following the try-in in the dental office and subsequent cleaning,
the contact surfaces are again roughened with a 25 micron finishing diamond. Finally, the surfaces are silanized (e.g. with
Monobond Plus) to enable a chemical bond.
Preparing for Cementation