The successful outcome of our inlayexperiments – i.e. the perfect bond

with the tooth – raised a new prob-lem. We needed to find a method forthe rapid production of inlays.During a visit to the AdvancedTechnologies Laboratory in Seatlle(USA) I succeeded in recruiting afriend of mine, Dr. Ing. MarcoBrandestini, a graduate of SwissFederal Institute of Technology inZurich. Together we thought up adental CAD/CAM system that wascapable of creating a three-dimen-sional image of the cavity, designingthe inlay, and milling the restorationfrom a high-strength ceramic materi-al. The goal was to create a systemthat enabled dentists to produce andplace a ceramic restoration in a sin-gle treatment session – without theneed for a conventional impression,a temporary or a second appoint-ment. We chose the name “CEREC”,short for “Computer-aided CEramicREConstruction”.

In the beginning there was a fas-cinating idea Before CEREC finally took shape,five years of hard pioneering workwere required in the area of imageacquisition, software programming

and milling technology. In otherwords, we had to combine optoelec-tronics, IT, mechanical engineering,control technology as well as tradi-tional dental skills.

We decided to call the 3D image ofthe cavity the "optical impression".This was supposed to take place in amatter of seconds. For this purposeBrandestini designed the CEREC 1intraoral camera. The exposure anglehad to correspond to the insertionaccess of the restoration, and theimage had to be displayed on themonitor instantaneously for checkingpurposes. A telecentric beam path waschosen for the 3D measuring process(4 x 40 milliseconds). We ordered thelenses from an optical specialist andthen glued them together ourselves inorder to create the first functioningcamera. The depth of field was 10 mm– sufficient to accommodate deepercavities. To acquire the 3D data wedecided to apply the principle of activetriangulation. In other words we pro-jected a grid of light and dark linesonto the cavity and then measured thedepth-related shifts with the help of aCCD video chip at a resolution of 50m. Today, such high-definition video

chips are a mass commodity. But backin 1980 they were subject to strict

export controls due to their potentialmilitary applications. For this reasonwe paid a visit to the head of researchat Fairchild in Palo Alto in SiliconValley, California, in order to securean import permit for Europe (also forfuture deliveries). We finally succeed-ed in finding a suitable charge-cou-

pled video chip, big enough in order togenerate 3D images of large mandibu-lar molars. What we lacked was a suit-able software for designing the resto-ration on the computer monitor. In

the meantime the year 1983 haddawned. We managed to recruit AlainFerru to the project, one of the firstsoftware engineers to graduate fromthe Swiss Federal Institute ofTechnology.

CONTINUED on page 2

LET US TAKE YOU BACK TO THE YEAR 1980. Amalgam was still the standard filling material. At the sametime, however, we at the Zurich Institute of Dentistry were experimenting with alternative tooth-coloured, pre-polymerized composite inlays designed for adhesive bonding. Ceramic – the ideal material for long-lived dentalrestorations – was hardly ever used for inlays and onlays, as it involved too much work in the laboratory andwas too prone to fractures. The time was therefore ripe for a new therapy approach.

ANNIVERSARY CELEBRATION

Ideal venue for the CEREC 20YC symposiumin Berlin PAGE 4

The CAD/CAM way – a revolutionaryforce in dentistry

Twenty years ago: Werner Mörmann and Marco Brandestini present the first CEREC system.

EDITORIAL

Last week a goodfriend of mine saidthat she wouldnever have bookeda week-long sail-ing trip to theMediterranean ifshe had known

that there was no shower on board.“And will you go sailing again?”I asked. “Yes, definitely,” she replied.

“It was great. And the missing showerwas no problem whatsoever!”

It’s a shame when we jump topremature conclusions. And it’s ashame when we reject new develop-ments out of hand on the basis of irrelevant criteria – something I expe-rience frequently when dentists getonto the subject of CEREC. Often it ishelpful to envisage a long-term goal.Wouldn’t it be great if patients them-selves demanded high-quality dentalrestorations? If I could adopt a mini-mally invasive approach? If I could dowithout impressions and temporaries?If I could create all-ceramic restorati-ons here in my practice? If I couldgenerate considerable additional reve-nues in just a few minutes?

When Professor Mörmann askedhimself these questions, there were no answers on the horizon. This is why he embarked on the develop-ment of CEREC. This was a long andexacting task. But he took a first courageous step. Why don’t you dothe same? We promise that you won’tregret it!

Dr. Wilhelm Schneider Head of CEREC product marketingat Sirona

In Europe, prizes are rarely awarded to dental products.

The situation is different inthe USA. In the US mar-ket, competitions, qua-lity seals and inde-pendent recommen-dations play a keyrole in the decision-making process. Henceit came as no surprisethat CEREC won the Seal of the ADA (American DentalAssociation), which has been certifying the safety and effec

tiveness of dental products since1931.

A string of covetedawardsIn 2003 CEREC gaineda place in the Top 100product recommenda-tions of the indepen-

dent journal “DentistryToday”. And in 2004 und

2005 CEREC 3D receivedthe Townie Choice Award in thecategory “Best CAD/CAM Equip-ment”. For the past two years in

succession the renowned CERECexpert Dr. Rich Masek has won thecoveted gold medal in the SmileGallery of the American Asso-ciation of Cosmetic Dentistry. TheCRA Foundation, a non-profitorganization that puts dental prod-ucts through their paces, has sin-gled out CEREC twice over: as the“CRA Buying Guide OutstandingProduct“, and as the “CRA Can’tLive Without Product”. Last butnot least, the US Air Force has ran-ked CEREC as “excellent” in its listof medical products. ■

CEREC wins awards in the USA

Phot

o: Q

uint

esse

nz

Published by: Sirona Dental Systems GmbH,Fabrikstraße 31, D-64625 Bensheim, Tel.: +49 6251-16-0, Fax: +49 6251-16-2591,contact@sirona.de, www.sirona.de

Responsible for content:Dr. Wilhelm Schneider, Sirona Dental Systems GmbH

Editorial team: Wilhelm Schneider, Hans-Georg Bauer, Antje Casimir, Iris Hauer, BirgitMöller, Manfred Kern, Andrea Hamacher,Christoph Nösser, info@cerec-zeitung.de

Design and production:ergo Kommunikation, Köln/Frankfurt a.M.,www.ergo-pr.de

Printing: PrintService Vertriebsgesellschaft vonWirth mbH, Willy-Messerschmitt-Str. 4, 50126Bergheim

CEREC Magazine is published every three months.

AA 9911110000 -- MM4411 -- AA884499 -- 0011 -- 77660000 i

PRIZES AND RECOMMENDATIONS. The recommendation of an unbiased test organizations can play an indis-pensable role in purchase decisions. Such organizations are a valuable source of information for dentists.

www.20YC.com.

No. 4 February 2006 International Edition

CERECZeitungCONVINCING STUDIES

CEREC restorations surpass the “gold standard” PAGE 2

Step by step

OPTIMUM MATERIALS

Everybody benefits fromour close links with mate-rial manufacturers PAGE 3

Photo: © www. berlin-tourist-information.de

20YC blog on the Internet

The term “weblog” (often abbrevi-ated “blog”) describes a new type ofonline diary. In connection with the20YC symposium the CEREC marke-ting team has decided to experimentwith this very direct and personalmode of communication. The goal isto inform CEREC users and prospec-tive customers about the history ofCEREC and about the forthcomingsymposium. Every day new picturesand contributions are posted on theblog. And once a week a new storyappears dealing with a new aspectof 20YC. Everybody is invited to sub-mit comments and material. Simplycontact the blogger at the Internetaddress.

The name of this patient was Dr.Alain Ferru. In the course of a sin-

gle treatment session ProfessorWerner Mörmann created the inlayusing CAD/CAM techniques andthen bonded it adhesively to thepatient’s tooth. At the time dentalprofessionals were unanimous: thisrestoration will never last. “You couldthrow a hat through the marginalgap” and “A piece of ceramic awashin a sea of composite” were just twoof the more friendly comments byopinion leaders and university pro-fessors. They were arguing from thenow obsolete perspective of metal-oriented dentistry. For this reasonmost clinical studies concentrated onthe marginal gap width – with dis-astrous implications for CEREC, as itappeared at the time.

However, a small but ever largergroup of clinicians was convincedthat adhesively bonded inlays andonlays could produce durable out-comes. Professor I. Krejci, for example, examined the wear re-sistance of industrially fabricatedceramic blocks and came to the con-clusion that CEREC restorations arevirtually indistinguishable fromnatural tooth enamel. N. Martin andN. M. Jedynakiewicz systematicallyevaluated 15 clinical studies perfor-med over the period 1986 to 1997.This revealed a 97.4 percent survivalrate for CEREC. The average observa-tion period was 4.2 years.

A further long-term evaluationwas carried out by B. Reiss undProfessor W. Walther: in a privatedental practice 299 patients receiveda total of 1,010 CEREC chairside res-torations. After a period of ten yearsthe survival probability rate was 90percent. Large restorations such asonlays and partial crowns performed

just as well as two-surface inlays.Premolars performed slightly betterthan molars; and vital teeth producedbetter long-term results than non-vital teeth. T. Otto and S. De-Niscodevoted their attention to the samequestion and monitored 187 CEREC 1restorations over a period of tenyears. The survival probability ratewas 90.4 percent. Professor R.Hickel and J. Manhart from MunichUniversity studied the scientific lite-rature published during the past tenyears and calculated the annual per-centage loss rates of the materialsused for Class I and Class II cavities.Even in the worst cases, the CERECrestorations were 25 percent betterthan gold fillings. A particularly inte-resting follow-up investigation wascarried out by A. Posselt andProfessor T. Kerschbaum. They tookas their basis 794 patients who hadreceived 2,328 CEREC chairside res-torations in a variety of different den-tal practices. After nine years the sur-vival probability rate was 95.5 percent.

The advent of CEREC crowns hasspawned a variety of universityresearch projects. A. Bindl andProfessor W. Mörmann, for example,fabricated 208 Vita Mark II crownsand bonded these to a variety of different preparations. After fiveyears molar crowns bonded to “classic” preparations displayed asurvival rate of 94.6 percent. Theequivalent figure for premolars was97 percent. These survival rates correspond easily to those of con-ventional metal-ceramic crowns.Another interesting issue is the long-term performance of veneers. Prof.T. Kerschbaum and K. Wiedhahnperformed a follow-up examinationon 617 veneers over a period of nine

years. The Kaplan-Meyer survival rate was 94 percent in the case ofveneers applied to natural teeth, and91 percent in the case of anteriorveneers used to repair crowns andbridges. In addition, there are a variety of other scientific studies relating to adhesive bonding, aes-thetics, occlusal design, and practice integration. As far as the last of thesetopics is concerned, one study hasshown that a dentist can cut his workload by up to two thirds by delegating various processing stepsto the assistant. A whole range ofpublications indicate that CEREC is at least on a par with gold restora-tions. Indeed, a sneak preview of thelatest statistical evaluations (ready forpresentation at the 20YCs sympo-sium) indicates that CEREC hasalready surpassed the established“gold standard”. ■

No. 4 February 20062

Stay on the safe side – thiscould be the motto of theCEREC Silver Club

Although the concept of full service is more deeply rooted inAmerica than on this side of theAtlantic, over 2,000 EuropeanCEREC users have meanwhilejoined the Silver Club. In addition to making significantsavings on CEREC updates andupgrades, the Silver Club mem-bers qualify for numerous otherbenefits.

For example, Pieter Le Rouxfrom Dunstable is especiallypleased about the ten percentreduction on admission to the20YC symposium in Berlin.“I’ve already recouped my membership fee for March,”says Le Roux. “And perhaps I’ll obtain a vital piece of infor-mation which is so valuable thatit can’t be measured in terms ofmoney.”

Silver paysdividends

If you want to join the CEREC Silver Clubplease contact your authorized CERECdealer.

i

CEREC Zeitung

He programmed the operating systemof CEREC 1 (COS 1.0) in accordancewith our specifications, taking intoaccount the three basic CAD/CAMparameters (the bottom line, the equa-tor, and the proximal and occlusalcavity margins). The next problemwas to find a suitable drive system forthe diamond grinding wheel. To thisend we produced a miniaturized ver-sion of the Pelton turbine used inSwiss hydroelectric power stations.Often the answer is on one’s doorstep!To begin with we fired the ceramicblocks in our own laboratory – untilwe established a working relationshipwith VITA Zahnfabrik, a highly quali-fied supplier of Mark I feldspar cera-mic. In September 1985 CEREC 1 wasfinally up and running. We assembledeach of the modules ourselves, frombeginning to end. The first CERECchairside ceramic inlay was producedon 19 September at the Institute ofDentistry at Zurich. The very firstpatient I treated was Alain Ferru, ourcomputer programmer. His tooth 27was fitted with a MOD inlay made ofVITA Mark 1 feldspar ceramic, desig-ned and placed in a single treatment

session. Bonding took place as fol-lows: firstly the cavity margins wereetched; the surfaces were then primed;finally the restoration was fixed inplace with the help of a compositematerial normally used for premolarfillings. The adhesive bond proved tobe resistant to penetration.

Capitalizing on innovation From the outset our team was convinc-ed that the rapid chairside fabricationof ceramic restorations would be avery attractive proposition for dentistsand patients. Experiments had alreadybeen performed indicating that it waspossible to create top-quality adhesive-ly bonded restorations. After CEREChad proved itself as an “inlay ma-chine” it was clear that the systemshould be continuously refined anddeveloped – up to and including theability to fabricate ceramic bridge-works. This in turn necessitated thedevelopment of aesthetic, high-strength machinable ceramic materials.

Co-operation with Sirona placedthe project on a solid foundation. Thecompany is absolutely convinced ofthe future potential of the CEREC pro-cedure. To date, dentists all over theglobe have placed more than 12 mil-

lion CEREC restorations – a clear indi-cation that CEREC is fully accepted inprofessional circles. CEREC has be-come the driving force behind dentalCAD/CAM technology the world over.We and Sirona have continuouslyadapted the CEREC procedure to therequirements of patients and dentists.Today, a dentist does not need to be acomputer expert in order to integrateCEREC into his or her practice work-flows. The current version of theCEREC system ensures maximumcomfort for the patient – and opti-mum ease of use for the dentist. Thishigh-tech procedure is the passport toenhanced job satisfaction, as mani-fested in enthusiastic responses of

patients. It’s a great feeling to bite onthe highly polished CEREC restora-tion and to trace its smooth contourswith the tongue. “It’s just as if it were

my own natural tooth.” A glance in themirror reinforces this sense of satis-faction and trust. Thanks to CEREC,dentists all over the industrializedworld are in a position to offerpatients convincing treatment alterna-tives and to generate appropriate reve-nues. Patients are willing to pay morefor high-quality dental treatment ser-vices.

My personal clinical experiencesince 1985, plus numerous scientificsurveys of dental practices and clinics,have confirmed that patients are rightto place their trust in CEREC restora-tions. More and more patients arenow willing to depart from the “goldstandard” and are choosing CEREC toreplace existing metal-alloy and goldrestorations, although these are theproduct of perfect workmanship. Thedemand is now for restorations thatare natural in terms of form, functionand colour. Indeed, we could even talkabout a new “natural” standard.

The achievement of this naturalstandard for dental restorations is theguiding principle behind CEREC andbehind my/our efforts in this area. ■

Prof. Dr. Werner Mörmann, Centre for Dental andOral Medicine at the University of Zurich

The same basis principle applies: with the help of an optical bench (above) the first-everoptical impression was created on the basis of “active triangulation” (below).

Studies confirm the durability of CEREC20 YEARS OF CLINICAL EXPERIENCE. Treatment room 37 at the Zurich University’s Institute of Dentistrywill go down in history. It was here that, 20 years ago, the first-ever patient received a CEREC inlay.

Laser technology compact and economic

The diode laser SIROLaser caters for a broad spectrum of applications in endodontics, peri-odontics and dental surgery. It is compact, easy to use and offers outstanding value for

money. The SIROLaser operates at a wavelength of 980 nanometers and hasa power output ranging from 0.5 to 7 watts. Thanks to its compact dimen-

sions (78 x 45 x 190 millimeters) and low weight (450 grams), theSIROLaser can be placed directly on the dentist element and easily

integrated into treatment workflow. The easyto use control menu it is very simple to

set the treatment parameters. Themost frequently used clinical

applications have already been preset. To activate the

SIROLaser the operatorcan either use the foot

control or the fingerswitch found onthe ergonomicallyshaped handpiece.

2 4 6 8 10 years

50

0

25

75

100 *

Long-term investigations show that CEREC

crowns are as good as gold.

* Survival rate according to Kaplan-Meyer in per cent.

Gold

CEREC-Inlays/onlays

CEREC crowns

Amalgam

Durability of various materi-als

CONTINUED from page 1

Phot

os: Q

uint

esse

nz

No. 4 February 2006 3

Ceramic materials are not all thesame. They differ considerably in

terms of aesthetics, fracture resistanceand machining characteristics. Thismeans that dentists can choose theright material for every clinical indica-tion. To ensure optimum quality it isimportant that the ceramic material isperfectly matched to the CAD/CAMsystem. For this reason Sirona hasmaintained long-standing workingrelationships with three leadingmanufacturers of dental ceramics:Vita Zahnfabrik, Ivoclar Vivadent and3M Espe.

Different ceramic blanks are deploy-ed depending on the specific applica-tion involved. After milling zirconi-um oxide ceramics, for example,need to be sintered in a high-temper-ature furnace. They are used mainlyfor bridge frameworks. By contrast,fine-structure ceramics can be polis-hed and characterized immediatelyafter milling. They are therefore well-suited to a broad spectrum of chair-side applications. There is a growingtrend towards multilayered ceramicswith differing degrees of translucen-cy. They save time – and are indistin-guishable from natural teeth, even topractised observers.

All the ceramic materials havestood up to the test of practical appli-cation. Long-term studies (overperiods of up to 18 years) indicatethat CEREC ceramics are at least as durable as traditional metal mate-rials.

CAD/CAM restorations made ofmetal and composite materials Via infiniDent – our centralizedmanufacturing service – inLab usersin Germany and France are now in aposition to offer CAD/CAM restorati-ons made of various metal alloys.Dentists in the USA have the optionof creating CEREC restorations fromcomposite blocks manufactured by3M Espe. Sirona has extended the

inLab 3D software to include theMerz Dental artegral® ImCrowntooth database. This provides the

basis for quickly adapting prefabrica-ted composite crowns to the patient’sexisting dentition. ■

Even those who know Berlin wellfind that the city always has some-

thing new to offer: 170 museums, thePhilharmonic Concert Hall, dozensof theatres and opera houses andfashionable clubs offer a constantlychanging program of entertainment tosuit every kind of taste. The legendary“KuDamm” (Kurfürstendamm), Fried-richstrasse and the redeveloped citycentre are a shopper’s paradise. Countless cafés, bars and restaurantsin every price bracket offer a bewilder-ing choice of international and localGerman cuisine. For all those whoplan to relax and see the sights afterthe 20th anniversary CEREC sympos-ium, or even spend a long weekend in Berlin, we’ve got a few tips to helpyou make the most of your time in the city.

Culture and sightseeingJewish Museum, Berlin (Lindenstraße9-14, U1/6 Hallesches Tor): The zig-zag forms of Daniel Libeskind’s iconicbuilding, housing a permanent exhibi-tion on the turbulent history of theJews in Germany, has captured thepublic imagination ever since its open-ing in 2001. Chinese Garden (Eisen-acher Str. 99, Marzahn, bus stop Er-holungspark Marzahn): Europe’s big-gest Chinese garden features a land-scape of rocks with waterfalls, a lakewith bridges and ornate pavilions inthe Chinese pagoda style. Neue National-

galerie (New National Gallery, Kultur-forum, Potsdamer Strasse 50, Tiergarten,U2/S Potsdamer Platz): From 17February until 7 May 2006 the exhibi-tion “Melancholia. Genius and Madnessin Art” will be showing at the museum.

ShoppingUKO Fashion (Oranienstr. 201,Kreuzberg, U Görlitzer Bahnhof): This

shop is an Aladdin’s cave for fashionistas,packed with second-hand pieces, design-er clothes and the latest collections at bar-gain prices. Hackesche Höfe (Rosen-tha-ler Strasse, Berlin-Mitte; U Wein-meister-strasse, S Hackescher Markt): A favouriteplace to buy unusual shoes, designerfashions and jewellery – popular withlocals and tourists alike.

Eating outZoe (Rochstr. 1, Berlin-Mitte, S Alex-anderplatz, U8 Weinmeister Str.):

The décor may be plain to the pointof austerity, but the cuisine demands– and deserves – one’s full attention.

Borchardt’s (Französische Str. 47,Berlin-Mitte, U Französische Strasse):A real institution on the historicGendarmenmarkt. A favourite hauntof business executives and seniorpolitical figures.

Freischwimmer (Vor dem Schlesi-schen Tor 2, Kreuzberg, U1 SchlesischeStr): The former boat-hire yard onthe banks of the Flutgraben speciali-zes in exotic cakes and pastries fromall over the world.

BarsBig Blue (Winterfeldtstr. 22,Schöneberg, U1/U2 Nollendorfplatz):Unique underwater ambience – inte-riors are deep blue throughout, nocorners or square edges anywhere,with a free-form bar counter thatlooks like a sandbank.

Saphire Bar (Bötzowstr. 31,Prenzlauer Berg, S GreifswalderStrasse): The seating is finished indazzling white, grouped aroundsmall metal tables, with a vastselection of cocktails to order from.

Trompete (Lützowplatz 9, Tier-garten, U Nollendorfplatz): The ele-gant and cosy club owned by actorBen Becker is not just the preserve ofthe rich and famous: anyone is welco-me to come in and enjoy a drink.

TIPS FOR VISITORS TO BERLIN. When CEREC was unveiled to the international public, Berlin was still adivided city. Since then Germany’s largest city has changed a lot – and acquired an even greater charm than ithad before.

www.berlin030.de; www.berlinonline.de/tip; www.zitty.de

i

CEREC Zeitung

Berlin welcomes 20YC delegates

As the Germans like to say:“Berlin is always worth a trip”.Since the fall of the BerlinWall, the new Federal capitalhas blossomed as a majorfocus of European cultural life.

Always the right material

Phot

os: ©

ww

w.b

erlin

-tour

ist-in

form

atio

n.de

A N S W E R S T O Y O U R Q U E S T I O N S

1980• Professor W. Mörmann convinces Dr. M.

Brandestini of the CEREC concept.• First patent application1982• Visit to Fairchild in Palo Alto (at the time

the only supplier worldwide) in order toobtain CCDs for the CEREC measuringcamera

1983• First optical impression, created on an

optical bench• Start of software development by Dr.

Alain Ferru• CEramic REConstruction becomes CEREC• First CEREC prototype1985• First CEREC intraoral camera• First CEREC unit, nicknamed “the lemon”1985• First CEREC treatment at the Institute of

Dentistry at Zurich University1986• Licence agreement between Brains and

Siemens1987• Field trials in seven dental practices 1988• International market launch of CEREC 1

at the IDS in Stuttgart1989• Market launch in France, Italy, Great

Britain and Spain• First TV appearance of CEREC1990• Software upgrade (COS 1.0) • Market launch in the USA and Australia1991• First CEREC symposium in Zurich• Foundation of the German Society of

Computerized Dentistry (DGCZ)• Dentine adhesive used for the first time1992• Changeover to electric drive system• Market launch in Japan• Software update (COS 2.1)1993• First CEREC master class in Karlsruhe1994• Veneer software for CEREC 1 (Veneer 1.0)• Market launch of CEREC 21996• 10 Years of CEREC symposium at Zurich

University• Gründung der ISCD1997• CEREC 2 crown software for premolar

crowns (Crown 1.0)• Foundation of Sirona Dental Systems GmbH1998• Crown update for anterior crowns• New material ProCAD (Ivoclar Vivadent)1999• Foundation of the Ceramic Dentistry

Working Party (AG Keramik)2000• Market launch of CEREC 3, CEREC Scan

und CEREC Link (on the summit of theZugspitze, Germany’s highest mountain)

• 3M becomes a supplier of raw materials 2001• inLab with PPU concept2002• Ten thousandth CEREC unit sold2003• Market launch of the CEREC 3D software2004• Veneer update with the capability of mir-

roring contralateral teeth• CEREC inLab renamed inLab2005• Crown upgrade featuring automatic

occlusal surface design function

Today’s success is the product ofcontinuous development efforts.

We’re all familiar with the problem. You have just listened to a lecture and want to ask an important question. But there are 1,000 people in the hall and you’re afraid to speak up. Such missed opportunities are a shame. Perhaps your question could have made amajor contribution to the scientific debate. For this reason Sirona has developed a specialmode of communication for the 20YC Anniversary Symposium in Berlin.

Fifty experienced CEREC specialists from all over the globe will be on hand throughout the symposium to answer questions about CEREC – both theoretical and practical.Attendees are welcome to bring along models, which can then be discussed directly at one of the CEREC systems installed at the congress hotel.

The CEREC specialists can be identified by their lapel badges. They will be able to communicate with each other via mobile phone if a second opinion is required. In the unlikely event that your query cannot be answered during the congress you will auto-matically qualify for a special raffle. It goes without saying that the CEREC Team will be in Berlin to help and advise.

Milestonesof CEREC

ABSOLUTE DEPENDABILITY. Dentists, labs and patients all benefitdirectly from our close links with material manufacturers.

Regardless of which material the dentistchooses, he or she can be sure that theceramic is perfectly matched to the CERECsystem.

Inlays, onlays, veneers and crowns: even practised observers are unable to tell the diffe-rence between zirconium oxide/fine-structure ceramics and natural tooth tissue.

Phot

os: V

ITA Z

ahnf

abrik

No. 4 February 20064

Science and training are on theagenda, of course. But so are

entertainment and relaxation in con-genial surroundings. The 20YC sym-posium has it all. Starting with theCongress hotel – first-class, of cour-se. Opened only six months ago, theHotel Maritim is situated conve-niently close to Potsdamer Platz incentral Berlin, and embodies all thestyle and ambience of a classicalgrand hotel. Warm colours, exoticwoods and carpets create a luxurioussense of wellbeing redolent of theBerlin of the 1920s. Tastefullyfurnished rooms, an exclusive well-ness suite with pool, sauna, steambath, solarium, fitness and rest areas,several restaurants and an elegantlyappointed bar offer all the amenitiesthat transform a working congressinto an event to remember.

“Feel the Passion”One thing the Congress is sure to beremembered for in years to come isthe anniversary gala on the eveningof the first day, which promises a sur-

prise package of fun and excitement.Under the motto “Feel the Passion”,the organizers have planned an ac-tion-packed program of high-classentertainment. Sirona has certainlypicked the ideal location: the Tempo-drom, next to the historic AnhaltStation, is one of Berlin’s premiervenues for unusual and exotic events.

The action will be every-where: in the foyer, in thebars, in the lounge and inthe main arena. There’llbe the occasional speechor two, of course. The his-tory of the CEREC andinLab CAD/ CAM sys-tems will be graphicallyillustrated in a gallery ofpictures. But this is partytime first and foremost –an opportunity to escapefrom the familiar dailyroutine and mix businesswith pleasure in an eve-ning of amusement, highspirits and – yes - passion.

Enthusiasm is catchingFor 20 years now CEREC has been captivating dentists the worldover – and the Congress organizerswant delegates to feel the fascinationand experience it for themselves. They’ll find that the enthusiasm ofthe global CEREC community is catching. ■

In love with CEREC, in love with Berlin

23 - 26 February 2006 Chicago Midwinter Meeting | Market launch of C8 Chairlinein the USA | Info: Tel. +1 704 587 04 53, CERECSupport@sirona.com

28 February - 2 March 2006 AEEDC - International Arab Conference and DentalExhibition | Dubai/United Arab Emirates | Info: Dr. Amro Adel, Tel. +971 505 59 77 80,amro.sirona@mailme.ae

9 - 11 March 2006 Expodental | Madrid | Info: Iris Hauer, Tel. +49 6251 16 2554, iris.hauer@sirona.de

17/18 March 2006 20-Year CEREC Anniversary Symposium | Berlin | Conferencelanguage English with German translation | Info: www.20YC.com

20 March 2006 Seminar: The Christensen 'bottom line' | London | Dr. GordonChristensen | Info: Tel. +44 1923 851 777, seminars@fmc.co.uk

8 April 2006 CEREC Veneer Course | London | Course language English | Dr. AlessandroDevigus | Info: Birgit Möller, Tel. +49 6251 16 2096, birgit.moeller@sirona.de

18 - 20 May 2006 BDA Conference and Exhibition | Birmingham | Info: Miles Tucker,Tel. +44 845 071 5040, miles.tucker@sironadental.co.uk

CEREC Zeitung

WINNING HEARTS AND MINDS. The use of CEREC makes soundscientific sense, but for many practitioners and patients it is also a matterof heartfelt emotional conviction. Under the title “In love with CEREC, inlove with Berlin”, Sirona is now developing a new newsletter for patients.

Wanted: Poster designs

The 20-year CEREC AnniversaryCongress gives practitioners a

unique opportunity to tell their ownpersonal CEREC stories to a wideraudience. The presentation of pos-ters highlighting recent researchwork on CEREC applications hasbeen organized by Sirona with theidea of offering a balanced mix ofscientific information and personalnarratives. A scientific committeeunder the direction of Professor Dr.Werner Mörmann will select 40 pos-ters from all the designs submitted.The principal authors of these pos-ters will get a 50 per cent discount ontheir Congress fees, including thecost of their ticket to the eveninggala. But that’s not the only reasonfor taking part. The cost of entering aposter design is much lower than it isfor conventional poster exhibitions,because entrants are not required tosubmit their design in final printedform. The winning entries will be on

view on the second day of theCongress in the form of a slide showrunning on a bank of plasma flat-screen displays. Those wishing totake part in the poster presentationshould simply send in their entry bye-mail as a Powerpoint or pdf file, orelse send a CD-ROM to QuintessenzVerlag. Guidelines on poster and let-tering sizes and on general layoutcan be found online.

BIG POSTER PRESENTATION IN BERLIN. CEREC practitioners areinvited to submit a poster of their own design, reflecting their own expe-riences, for the 20YC Anniversary Symposium. Suggested themes mightbe time measurements, integration models or particularly interestingtreatments – or indeed anything else to do with CEREC or inLab.

C O M I N G S O O N

Phot

o: M

ariti

m H

otelg

esell

scha

ft

The first issue tells the story of Juliain picture form. Julia has an acci-

dent on the way home. But it turnsout to be a blessing in disguise,because Michael, a young CERECdentist, sweeps her up in his strongarms and helps her back onto thepavement. It could have been worse:

she has only chipped a front tooth.Julia’s regular dentist, Dr. Hartmann– not a CEREC user, and madly inlove with her – suggests a conventio-nal crown as the appropriate treat-ment, for not entirely unselfish rea-sons. This requires several appoint-ments – which means he gets to seeJulia more often. Julia on the otherhand dreams only of Michael, whowould like to attend the 20YC sympo-sium in Berlin. He looks forward tohearing speakers from the USA andall over the world, who have had a sig-nificant influence on the history ofdentistry. He’s also hoping to pick upsome useful tips from older collea-gues. Will CEREC help Julia to winMichael’s heart? Now read on .... Thesequel to the story will be sent to indi-vidual CEREC users as a mailing, andfrom February it will also be postedonline at www.20YC.com. ■

A love story: CEREC was her fate.

www.20YC.comiRecapturing the gracious living of the 1920s: a stylishsetting for serious science at the 20YC symposium.

Grand anniversary galaAN EVENT TO REMEMBER. Serious scientific discussion in congenial surroundings: the 20YC symposium isnot to be missed on any account.