Dental Tribune Middle East & Africa Edition

DENTALTRIBUNE Middle East & Africa Edition Media CME 7 accuracy than the conven- tional impression-taking tech- nique with elastomeric impres- sion materials. A virtual model of the max- illa/mandible is com- puted from the scans of the quadrants or complete dental arch with the antagonist dentition. Via the In- ternet, the dentist sends the datasets from C.O.S. Lava or iTerotothemanufacturer,where they are checked before being used to produce a resin model (Figs. 9 & 10). After CAD con- struction of the restora- tion, the dental technician can either mill the frame- work in his/her own laboratory or have it done at the milling centre. The resin model is needed to layer on the veneers and perform articulation. CEREC AC also computes a vir- tual model (Fig. 11). Framework- free crowns and short-span FDPs can be milled im- mediately, directly from the dataset, in the practice’s labora- tory or in another dental labora- tory with an online connection to the practice. For veneered crowns and multi-unit bridges,astereolitho- graphically pro- duced resin model (SLA) is necessary, which is provid- ed by InfiniDent (Sirona) and makes veneering the framework and articulation possible (Figs. 12–14). Optoelectronic impression- taking systems are ex- tremely promising. Owing to the offered advantages in standardisation, qualityassuranceandpatient- comfort,digitalintraoralimpres- sion-taking systems have great potential for the future. In the comingyears,theywillbeseenin ever-increasing numbers in daily dental prac- tice. The datasets they create, thanks to the exchange of infor- mation online, simplify commu- nication between the dentist and the dental technician, regardless of distance. Supplemental facial photos, information on tooth colour, individualisation, mate- rial, occlusal con- cept, etc. can also be attached. All of this hap- pens with- out conventional im- pression-taking and the associ- ated gag reflex, wax check-bite and stone model._ DT Fig. 1_Short-wave blue light with structured light projection. (Photo courtesy of Ender) Fig. 2_Single images are matched to create a digital full-arch model, basis for construction and milling of the framework. (Photo courtesy of Mehl) Fig. 3_Optoelectronic intraoral scan using the C.O.S. Lava system. Crown preparation and preparation margin are portrayed exactly. In addition to framework manufacture, the dataset enables production of an SLA resin model including the antagonist teeth. Fig. 4_Intraoral scan (C.O.S. Lava) of a molar with a cusp-supported prepa- ration for a ZrO2 crown framework. (Figs. 3 & 4 courtesy of Wöstmann) Fig. 5_ITero is equipped with a laser camera. It is the third intraoral scan- ner on the European market. Fig. 6_ITero scans the tooth at several levels using laser triangulation. Figs. 7a & b_The virtual “prep-check” checks the preparation margins and the occlusal reduction against the an- tagonist tooth. (Photo courtesy of Lauer) Fig. 8_The full-arch scan for an FDP construction using the iTero system. (Figs. 5, 6, 8 & 10 courtesy of Strau- mann) Fig. 9_SLA resin model using the C.O.S.Lavasystem.(Photocourtesyof 3M ESPE) Fig. 10_Digitally milled resin model using the iTero system. Fig. 11_Construction of an FDP. Fig. 12_SLA model (acrylic) for trying in the framework. Fig. 13_Trying in the ZrO2 frame- work.Fig.14_Veneeringandarticula- tion. (Figs. 11–14 courtesy of Baltzer) Fig. 9 Fig. 11Fig. 10 Fig. 12 Fig. 14Fig. 13 FDI World Dental Federation Leading the World to Optimal Oral Health 2012 Hong Kong FDI Annual World Dental Congress 29 August - 1 September 2012 Leading the world into a new century of oral health Design:b’com·+33(0)650466070 www.fdicongress.org congress@fdiworldental.org 10 reasons to join FDI in Hong Kong, World Oral Health Capital 2012 1. Celebrate the uniqueness of FDI at its 100th Annual World Dental Congress; 2. Learn about the latest developments from international and regional experts; 3. Discover the newest technology, equipment, products and materials; 4. Interact with renowned world specialists; 5. Empower yourself through FDI sessions on policy and public and oral health; 6. Enjoy exclusive face-to-face encounters with your peers worldwide; 7. Develop your knowledge and skills through a new and innovative programme; 8. Sample some of the best cuisine in Asia: one restaurant for every 600 inhabitants! 9. Marvel at the breathtaking views of Hong Kong and Macau; 10. Uncover the riches and mysteries of mainland China. AD Dental Tribune Middle East & Africa in collaboration with CAPP introduce to the market the new project mCME - Self In- struction Program. mCME gives you the opportu- nity to have a quick and easy waytomeetyourcontinuinged- ucation needs. mCME offers you the flexibility to work at your own pace through the material from any location at any time. The con- tent is international, drawn from the upper echelon of den- tal medicine, but also presents a regionaloutlookintermsofper- spective and subject matter. How can professionals enroll? They can either sign up for a one-year (10 exercises) by sub- scription for the magazine for one year ($65) or pay ($20) per article. After the payment, par- ticipants will receive their membership number and will beabletoattendtotheprogram. How to earn CME credits? Once the reader attends the dis- tance-learning program, he/she can earn credits in three easy steps: 1. Read the articles. 2. Take the exercises 3. Fill in the Questionnaire and Submit the answers by Fax (+971 4 36868883) or Email :info@cappmea.com After submission of the an- swers, (name and membership number must be included for processing) they will receive the Certificate with unique ID Number within 48 to 72hours. Articles and Questionnaires will be available in the website after the publication. www.cappmea.com MEDIA CME Self-Instruction Program