With the Lava chairside intra-oral scanner (COS) recently launched in the UK, 3M ESPE hopes to fundamentally transform the interaction between dentists and technicians in the creation of indirect restorations, leading to more predictable and accurate results.

The Lava COS collects digital data directly from the patient's mouth by taking an impression using a wand measuring 13.2 mm wide at its tip - providing easy movement throughout the mouth.

An extra advantage of this technology is its ability to capture continuous three-dimensional video streams in the mouth and display the data on the touch screen in real time. This enables instant feedback for both the dentist and patient to see the anatomy of the mouth and specific areas of interest.

It is possible to view all parts of the impression precisely because the 3D images can be rotated and enlarged. If required, additional data is captured and added to form increasingly detailed images. The completed digital model on the screen is used for interaction with the patient and as a basis for the production of an accurate restoration.

The set of captured digital data is electronically sent to the laboratory. Here, margins are marked and the die is virtually cut. The file is then transmitted to a model manufacturing facility that produces a precise stereolithography (SLA) model and to the laboratory for the production of either a Lava CAD/CAM or conventional (PFM) restoration.

In addition, 3M ESPE will also launch several new system components for laboratories and authorised Lava milling centres (ALMCs) in 2009. In combination with the Lava COS, these solutions will provide access to an entirely digital workflow for the production of indirect restorations, from impression taking to cementation.

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