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DENTAL LABORATORY Order online at qualident-online.com or Call +971 4 342 7576 QBRIDGE CAD-CAM INNOVATION by QUALIDENT SMARTDENTAL RESTORATION Our new digital product family using CADCAM digital impressions Implant Bridge using CADCAM digital impressions 16 Dental Tribune Middle East & Africa Edition | May-June 2015restorative < Page 14 Exclusively by: ADVANCED PRESSTM TM ADVANCED PRESSTM Process The patented ADVANCED PRESS process ensures a uniform temperature dis- tribution from the temperature sensor of the press furnace to the inside of the press ring. Pressing always takes place within the ideal temperature range for pressing lit- hium disilicate. Thus hardly any reaction layer is created on the surface. This is enhanced by an extermely short press time. The result is a smooth surface and an enormous time savings! P.O.Box: 24476, Sharjah - United Arab Emirates, Tel. : +9716 5308055, Fax : +971 6 5308077 E-mail : dt_uae@eim.ae, www.dme-medical.com Available only in the VARIO PRESS 300e Version R In the dental laboratory The ceramic restorations were created on a refractory model usingafluorapatiteleuciteglass- ceramic (IPS d.SIGN®). Prior to this step, we selected the appro- priate ceramic layering materi- als with the help of the shade determination photos. Then the veneers were conventionally layered on refractory dies. After the firing process, the restora- tions were carefully finished. Subsequently, the delicate ce- ramic veneers were prepared for placement (Figs 5 to 7). Placement The provisional restorations were removed and the prepared teeth were cleaned. Then the veneers were tried in the mouth (Fig. 8). Try-in sequence: - Dry try-in of each individual restoration for the inspection of fit - Dry try-in of all the restorations together in order to check the proximal contacts - Try-in of the restorations with glycerine paste (Variolink® N Try-In) for determining the shade of the luting composite It is of utmost importance to try in the restorations with a try- in paste in order to select the most suitable shade of the luting composite. In principle, a trans- lucent material is selected for cementing ultra-thin veneers (for example Variolink N Clear Veneer), since the natural tooth structure and the restoration are expected to produce the tooth shade. Nevertheless, if the shade needs to be specially adjusted, try-in pastes in other shades can be tested and used. Once the luting composite had been selected, the try-in paste was rinsed off with water and the restorations were condi- tioned with nine-percent hydro- fluoric acid (HF) for 90 seconds. Then they were thoroughly rinsed with air-water spray. The Fig. 9. The transitions between the ultra-thin veneers and the canines were lightly finished. Fig. 10. Final polishing Fig. 13: Final picture: The upper tooth row looks esthetic and very natural. Fig. 11. After seating of the six veneers on teeth 13 to 23 Fig. 12. Inspection of the functional parameters Dr. Nelson Geovane Massing XV de Novembro Street 260 Passo Fundo | Brazil nelsonmassing@hotmail.com Contact Information prepared tooth surfaces were cleaned with 35-percent phos- phoric acid for 20 seconds. A si- lane solution (Monobond® Plus) was applied and left to react for one minute, followed by the ad- hesive (ExciTE® F). A light-cur- ing composite (Variolink N Clear Veneer) was used to cement the restorations in place. The restorations were seated according to the corresponding protocol. After the excess ce- ment had been cleaned up, the composite was polymerized for 60 seconds at high light intensity (1,200 mW/cm2, Bluephase®). Since the canines did not re- quire preparation before they received the ultra-thin veneers, the transitions between the res- torations and the teeth had to be lightly finished with a diamond polishing system (OptraFine®). The surfaces were finished by moving from the restoration to the tooth structure in order to prevent any damage being done to the natural dental enamel (Figs 9 and 10). Conclusion The adhesive cementation of ceramic restorations offers a proven treatment strategy, which provides excellent bio- mechanical and esthetic results. In the described case, the nat ural-looking and esthetic result speaks volumes. A satisfied pa- tient with a beaming smile was released from the dental prac- tice (Figs 11 to 13). Order online at qualident-online.com or Call +97143427576 P.O.Box: 24476, Sharjah - United Arab Emirates, Tel. : +97165308055, Fax : +97165308077