Dental Lab Products - April 2009 - (Page 42)

benchMASTERY STEP-BY-STEP IPS E.MAX PRESS HT Seamless integration A healthy, 49-year-old female presented with bulky, dark PFMs on her two maxillary centrals (Fig. A). She wanted the best possible esthetic result with the least amount of invasive dentistry. A good compromise could be achieved by restoring her four maxillary anteriors after improving her periodontal health; establishing a stable, restorative point; and limiting IPS e.max Press HT Features • Biocompatible lithium disilicate glass ceramic • Offers exceptional ﬁt, form, function, and ﬂexural strength (400 MPa) • Kind to opposing dentition • Offered in low, medium, and high opacities to meet clinical needs Using IPS e.max Press HT to create highly esthetic anterior ultra thin veneers and crowns. By Steve Hoofard, CDT, Aesthetic Designs Laboratory, Hermiston, Ore. Dentistry by Dr. Mike Cole, private practice, Ellensburg, Wash. Information provided by Ivoclar Vivadent Inc. her parafunctional tendencies. Once her bite was stable, PVS impressions, bite registrations, and a Kois Dento-facial transfer were taken. This information along with appropriate photos of the patient were sent to Aesthetic Designs Laboratory. A four-tooth wax-up was requested to include a Siltek temporary matrix and a split Siltek for buccal and lingual prep depth guides. The patient approved the wax-up and was excited for the preparation date. On the day of the preparation, the patient was anesthetized, and the gingival of teeth #7 and #8 reprobed to ensure the ability to diode lase the gingival contours to be more symmetrical to teeth #9 and #10. The patient’s bone was sounded to evaluate gingival response and possible black triangle development. This was a • Lifelike esthetics independent of prepared tooth shade • Allows conventional or adhesive cementation Ivoclar Vivadent Inc. www.ivoclarvivadent.com info@ivoclarvivadent.com Ivoclar Vivadent Inc. 175 Pineview Drive Amherst, NY 14228 800-533-6825 Canada 2785 Skymark Ave. Mississauga, ON L4W 4Y3 800-263-8182 Fig. A Patient with dark, bulky PFMs on two maxillary centrals. Fig. B The old PFMs were removed and the laterals minimally prepped for veneers. Fig. C The dentist checked for the ﬁnal shade. Fig. D Stump shade also was checked. Fig. E Pour the impression and fabricate a master model. Fig. F Wax the restorations to full contour. Fig. G Use a Siltek matrix in the cutback of the wax patterns. Fig. H Sprue, invest, and press using IPS e.max Press HT. Fig. I Fit the pressed restorations to the model. Fig. J Apply glaze liquid to wet the surface of the restorations and then add internal stain effects. Fig. K Add a dusting of E02 opalescent enamel for a wash ﬁring. Fig. L After ﬁring, place the restorations back on the master model. 42 dentallabproducts April dlpmagazine.com http://www.ivoclarvivadent.com http://www.dlpmagazine.com

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Dental Lab Products - April 2009 Contents From the Editor Product Watch New Face of Veneers Veneer Venue Chairside Metal Here and Now Seamless Integration Pressing Versatility Pinless Duplication The Fine Art of Delegating City of Big Ideas Spring Forward Industry News Easy Does It Art of Articulation Classifieds The Perfect Storm

Dental Lab Products - April 2009

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