Impression-free implant restorations with Cerec InLab

The Cerec InLab software 3.80 allows for the fabrication of implant abutments and crowns without taking impressions. The intraoral optical impression is taken with the help of what is termed "scanbodies". The custom-made zirconia abutments are bonded to a titanium base and can thus be fastened with high torques without creating tensile stress.     

Cerec 3

Generally, there are more wishes than technical solutions. In this context, we regard it as one of our primary tasks to constantly respond to your demands and implement them as far as the currently achievable and economically feasible state of the art allows us to. Against this background, we are especially proud of being able to present our new Cerec devices to you following a challenging but successful development and test phase: Cerec 3, the modular CAD/CAM system which flexibly meets the demands of your practice (Fig 1) Cerec Scan, the economy model for working indirectly (Fig 2), and Cerec Link, the connection software that provides all Cerec 2 users with the advantages of the new Cerec 3 software and enables concurrent designing and milling. Cerec 3, Cerec Scan, and Cerec Link now stand next to the Cerec 2, the compact CAD/CIM unit which accompanies many of you in your daily work and makes possible tooth-conserving, biocompatible, natural-looking restorations of long-lasting ceramic materials for a wide spectrum of indications and economic efficiency. The new members of the Cerec product family show significant new developments and many specifics, enabling you to meet many of your individual demands. In addition, they provide the new platform for further developments in the coming years, which we would like to start working on with you right away in the pioneering spirit of progressive dentists.     

FGP technique with Cerec 3D

With the presented technique it is possible for the user of the chairside Cerec method to design the functional anatomy of the occlusal surface and the precision of the occlusal level right from the start, so that the restoration fits well in the occlusion ofthe patient without causing interference.     

Occlusal surface design with Cerec 3D

Apart from the better visualization and simplified entry, the introduction of the new Cerec 3D software has also created new possibilities for designing the occlusal morphology. In this case, not only have the proven Extrapolation, Correlation and Function modes been improved and their use simplified, but an extension of these possibilities by combining different procedures has been introduced.     

All-ceramic primary telescopic crowns with Cerec inLab

On the one hand, all-ceramic primary telescopic dentures serve to satisfy the growing esthetic needs of older patients, and on the other hand guarantee good adhesive stability. With the aid of the Cerec inLab system, primary telescopic crowns made of Vita In-Ceram infiltration ceramic can be designed and milled after previous conventional determination of the over all insertion direction. The raw crowns gained in this way then require only minor improvement. The secondary parts are produced with the aid of electroforming. These are adhesively bonded to the tertiary structure. The special feature of adhesive bonding of the primary telescopic crowns requires uncompromisingly good cooperation between dentist and laboratory.     

Efficient quadrant restoration with the new Cerec software

Quadrant restoration has been an integral part of the software since the Cerec 3-D program was introduced. In the new 3.80 version, the program also offers the option of scanning the opposite jaw and correlating it with the prepared jaw by a buccal scan. This innovation is especially appropriate when several teeth in a quadrant are being restored. The procedure is described in detail in this article.     

The impression-free Cerec multilayer bridge with the CAD-on method

Two new developments extend the spectrum of the Cerec applications: Cerec-Connect: The entire mandible and maxilla can be scanned, as well as their relationship to one another, with the intraoral scanner. Multilayer technique for up to four-unit fixed dental prostheses (FDPs): the CAD-on technique from Ivoclar is the latest procedure in which a zirconium oxide framework and a veneer structure of e.max-CAD are bonded together by ceramic. Intraoral data acquisition with Cerec-Connect, design with Cerec-inLab and fabrication of the three-unit FDP are described and illustrated with a clinical case, and further developments are suggested.     

Virtual Reality by Cerec inLab Framework

Virtual Reality--meaning the visualization of abstract computer processes--is gaining increasing significance in the everyday routine of the dental laboratory working with CAD/CAM technology. This is indispensable especially when processing the new high-strength materials such as ZrO2. The average maximum chewing forces previously permitted a bridge in the posterior region only when metal ceramics were used. With the aid of modern computer technology, it is now possible to use the all-ceramic material of zirconium dioxide for these indications. The technical procedure in the dental laboratory corresponds largely to the production techniques that are known from use with aluminum oxide. VITA VM 9 (Vita Zahnfabrik, Bad S?ckingen, Germany) is available as veneer material. Its coefficient of thermal expansion is perfectly matched to the ceramic.     

Correlation and function in Cerec 3

The Correlation and Function modes are valuable assistants for an anatomical occlusal surface design in the Cerec method. Because of the extensive improvements of the Cerec 3 software, particularly the Correlation mode considerably simplifies the clinical procedure. Correlation works so accurately that even with small restorations, provided that the initial situation is anatomically correct, a second exposure is worthwhile, since the intraoral corrections on the occlusal surface are reduced to a minimum by the use of Correlation. The Correlation algorithm also brings somewhat incongruent exposures into exact alignment. With this principle and the enormous progress made in the hardware, further exceptional development of the Cerec occlusal surface can be expected.