Page 66 - SURE DENTAL CATALOGUE 2023
P. 66

Treatment Of And Delivery Of An All-Ceramic Restoration

.....cont..      By: John Kanca, III, DMD
                 2009-03-01

The Tooth

In the present case, the preparation sealed with the resin adhesive on the day it was prepared.
Surpass® 1 was applied to dentin and enamel for 10 seconds and left wet. Three brushfuls of Surpass® 2
were applied directly to the wet prep and then dried very thoroughly for ten seconds. A thin layer of
Surpass® 3 was applied to the prep and dried to a very thin layer. Each surface was light-activated for tens
seconds. The temporary was inserted with a non-eugenol temporary cement (Fig. 5).

On the day of delivery, the temporary is removed, the prep is cleaned of the temporary cement, and the
onlay in tried in for fit. Removal of the temporary cement fragments may be facilitated with the use of
Consepsis Scrub™ (Ultradent, Sandy, UT) on a small brush or even on a cotton pellet. Particle abrasion
is discouraged as it may induce bleeding from the surrounding soft tissues.

The Restoration

To ready the onlay for insertion, the inner surface of the onlay is carefully inspected for defects and is
carefully cleaned with either steam or an acetone wash and dried. The inner surface of the onlay will be
treated with Interface (Sure Dental Innovations). Interface™ is a combination silane and ceramic

 conditioner. The use of hydrofluoric acid is not necessary with Interface. In addition, Interface can be
       used to treat porcelain prostheses being inserted and can be used for ceramic repairs. Interface is
       highly rated by an independent, non-profit dental education and testing foundation. In an investigation
      including three different types of porcelain -- VMK II Cerec Blocks (Vident, Brea, CA), Procad, the
      CAD/CAM version of Empress (Ivoclar Vivadent, Amherst, NY), and Ceramco 2 (Dentsply Ceramco,
      York, PA) -- Interface and Simplicity® 2 were shown to perform as well as the control HF etching and
      a one bottle adhesive. 26

      A drop of Interface A and Interface B are mixed together in a well. After approximately 30 seconds
      the silane conditioner/primer is ready for application. The mixture is applied to the inner surface of the
      ceramic onlay and it is dried thoroughly. A coat of Surpass® 3 is then applied to the internal surface,
      blown with compressed air to a very thin layer and light-cured for ten seconds.

      Surpass® 3 is then re-applied to the preparation and light-cured once more (Fig. 6).

The Cement

The luting resin composite of choice is Anchor® (Sure Dental). Anchor® is a dual-cure
resin composite that serves as a core build-up material, post luting resin cement and a ceramic
 crown and onlay cement. The resin cement is dispensed from the auto-mix cartridge into the

  prosthesis (Fig. 7) and the onlay is seated (Fig. 8). A dual-cure resin cement, Anchor® offers a
   prolonged gel phase prior to hardening. This provides a comfortable period of time during which
  the excess cement may be easily removed from the margins. Then floss is run downward and
   outward through the proximal spaces. The complete onlya is then light-activated for 10 seconds
    per surface. The occlusion is adjusted as necessary and the porcelain is polished (Fig. 9).

     The completed restoration is shown in Figures 10 and 11. The recall image is seen in Figure 12.

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