Lab Tribune Middle East & Africa Edition

lab tribune Dental tribune Middle East & Africa Edition | January-February 2016 2C < Page 1C point, the distance between the bone crest and the gingival crest was measured. It is well- establishedintheliteraturethat a papilla will be present if the contact point is no more than 6.5 mm away from the most coronal interproximal height of the bone crest between a natural tooth and a pontic. This can be measured by probing the bone with an endodontic spreader, marking the distance during the ceramic try-in and then using it in the fabrication of the restoration. However, us- ing this distance can lead to a very large contact area with a short papilla if the bone is miss- ing. The result is an unnatural, square tooth shape. Therefore, this is important information for the dental technician. When applied wisely during ceramic layering, interproximal pink, brown and yellow stains can create a very natural illusion and thus help to overcome this problem. In the course of the treatment in this case, it be- came clear that the restoration of tooth 13 was unnecessary to achieve the desired outcome. The try-in of the restoration revealed that the zeniths of the gingival contours were mis- placed. The use of slide share software (e.g. Keynote) allowed us to transmit visual informa- tion to the dental technician on the following issues: - the desired gingival zenith - the desired interproximal stains (to mask the interproxi- mal spaces) - the position of the buccal ridges, which is of paramount importance for the visual perception (Fig. 9) Final restorations Even though cementing the veneers irst has certain advan- tages colour stabilization), in this particular case both types of restorations were cemented simultaneously. The veneer for tooth 22 was pressed from IPS e.max® Press lithium disilicate glass-ceramic (shade LT, A2) and completed with IPS e.max Ceram. The pressable ceramic is available in various degrees of opacity and enables esthetic restorations to be fabricated that blend seamlessly with the remaining dentition. Vario- link® Esthetic LC, a light-cur- ing luting composite (in a neu- tral shade), was used to cement the laminate veneer (Figs 10 to 13). The porcelain-fused-to- zirconia bridge (IPS e.max Zir- CAD veneered with IPS e.max Ceram) was cemented with the self-adhesive, self-curing resin cement SpeedCEM® (in shade Transparent) according to the instructions of the manufac- turer. Conclusion Smile improvements are very challenging, particularly if, in addition to restoring the white esthetics, a harmonization of the gingival architecture is required. Only by choosing a multidisciplinary treatment approach will be mutually beneicial communication be- tween the dentist and dental technician. This is an essential prerequisite to achieve the de- sired success. Figs 8a and b: Lab communication: Transfer of the basal shape of the pontic from the mouth to the model Figs 11a to c: Cementation of the ceramic restorations Figs 12a and b: Lateral view of the inclined inal restorations Fig. 13: Frontal view Fig. 9: Lab communication: Gingiva contours, interproximal stains, the position of the buccal ridges, etc. were communicated by means of slide share software. Fig. 10: The inal restorations on the model. Bridge on teeth 12 to 21, ve- neer on tooth 22 www.idem-singapore.com STRIVING FOR CLINICAL EXCELLENCE Featured Speakers APRIL 8 - 10, 2016 Suntec Singapore Convention & Exhibition Centre Online Registration Now Open! IDEM Singapore 2016’s conference theme is built upon the common goal of all dentists – both general and specialist: Striving for Clinical Excellence. Look forward to world-class clinicians, researchers and educators discussing contemporary issues in the field of dentistry. Ms. Cindy Tantarica Tel: +65 6500 6721 Fax: +65 6294 8403 idem-reg@koelnmesse.com.sg Ms. Cindy Tantarica Tel: +65 6500 6721 Fax: +65 6294 8403 idem-reg@koelnmesse.com.sg Endorsed By Singapore Dental Association Co-organizer Held In In Co-operation With Supported By Walter Dias, Germany Clinical Excellence in Aesthetic Restorations - Hybrid and Indirect Techniques Using Smart Composites Elif Keser, Turkey PiezocisionTM for Rapid Orthodontic Therapy: A Multi-disciplinary Team Approach Hien Ngo, Kuwait Chairperson of the Full Day Symposium: Towards the Post-Amalgam Era Pre-Register and Meet Over 500 Exhibitors! Join the IDEM Singapore Trade Fair to meet over 500 internationally recognized manufacturers, distributors and traders. With exhibitors showcasing their latest products and services on levels 4 and 6, your visit will be packed with opportunities to strike new deals and re-enforce existing partnerships. Dental Tribune Study Club in Cooperation with IDEM Singapore Visit the Dental Tribune Study Club in the exhibition hall on level 6 to attend free live lectures on the latest in dental technology and procedure. Widen your networking possibilities and assess new products and techniques. Information on Study Club lectures will be avaliable online closer to the event. Sign up as an exhibition visitor online today to guarantee your complimentary entry. Dr. Jorge André Cardoso jorge.andre@ora.pt www.ora.pt DT Oleg Blashkiv olegblashkiv@gmail.com Dr. Rui Negrão rui.a.negrao@gmail.com Dr. Teresa Taveira teresa.taveira@ora.pt Contact Information Tel: +6565006721 Fax: +6562948403 Tel: +6565006721 Fax: +6562948403

Lab Tribune Middle East & Africa Edition

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