Cerec

CEREC

1

CEREC
CEREC (Chairside Economical Restoration of Esthetic Ceramics, or CEramic REConstruction[1] ) is a dental restoration product that allows a dental practitioner to produce an indirect ceramic dental restoration using a variety of computer assisted technologies, including 3D photography and CAD/CAM. With CEREC, teeth can be restored in a single sitting with the patient, ratherthan the multiple sittings required with earlier techniques. Additionally, with the latest software and hardware updates, crowns, veneers, onlays and inlays can be prepared, using different types of ceramic material. Single Appointment Dental Care: Most dental restorative methods require more than one visit to the dentist. This means that on the first visit, you get an injection of anesthesia, yourtooth prepared, an impression taken, and a temporary restoration put on your tooth. You make a second appointment for a couple of weeks later, get another injection, have the temporary removed and have a permanent restoration put on. With CEREC, the procedure is done in a single appointment, start to finish. With CEREC, the dentist can use strong, tooth colored ceramic materials to restore yourteeth to their natural beauty and function. Finest Dental Materials: These materials match the composition of natural tooth structure. This means when hot food or cold drinks are consumed the restoration and tooth expand and contract at almost equal rates. Also, the materials are chemically bonded to your tooth, so the dentist can save as much healthy tooth structure as possible while providing youwith a dental restoration that strengthens your tooth.

Technology
The cavity preparation is first photographed and stored as a three dimensional digital model and proprietary software is then used to approximate the restoration shape using biogeneric comparisons to surrounding teeth. The practitioner then refines that model using 3D CAD software. When the design phase is complete, theinformation is sent wirelessly to the milling unit which mills the actual restoration from a solid block of material using diamond burs. The restoration is bonded to the tooth using a resin cement which bonds to both the restoration as well as the tooth itself.
CEREC 1 2 and 3 from Sirona

History
The system is manufactured by "Sirona Dental" in Bensheim, Germany . • • • • • • • • 1980 - Developmentof the CEREC method at the University of Zurich W. Mörmann, M. Brandestini). 1985 - Treatment of the first patient with CEREC (University of Zurich, material: VITABLOCS Mark I). 1986 - Siemens acquires the license to market and further develop the CEREC equipment. 1987 - CEREC 1 is introduced (chief indication: single and dual-surface inlays; material: VITABLOCS Mark II). 1990 - InternationalCEREC Symposium at the University of Zurich. 1991 - Hydraulic machining drive replaced by an electronically controlled motor. 1994 - CEREC 2 is introduced (range of indications: inlays, onlays, veneers). 1996 - CAD/CAM Symposium to mark a decade of CEREC (University of Zurich).

CEREC • • • • • • • • • • • • • • 1997 - Sirona was formed as the result of the sale of the Dental Division of SiemensAG. 1997 - CROWN 1.0 program for producing full-ceramic posterior crowns. 1998 - Second material manufacturer partnership is formed (lvoclar, ProCAD). 1998 - CROWN 1.11 program for producing posterior and anterior restorations. 2000 - CEREC 3 is introduced (compact Windows-based CAD/CAM system). 2000 - Third material manufacturer partnership is formed (3M Paradigm MZ100). 2002 - More than 2,500CEREC users in the United States and over 5,000,000 CEREC restorations placed worldwide. 2003 - 3D software version is released, allowing users to see 3D views of teeth and models. 2005 - IPS e.max CAD by Ivoclar Vivadent launches for CEREC, 360MPa flexural strength all ceramic restorations 2006 - CEREC Celebrates 20 Years. 2006 - Sirona releases BIOGENERIC version of software. This software allows...