CAD CAM Diagnostics Theraputics

Impression Gremlins

CS3500In case you missed it: Dentalcompare article from Dec. 2012.

An impression can distort or in some other way betray us at numerous stages along the path from the moment it is taken until the restoration is ready to deliver.

Each of these items: the impression material, the stone, the wax, the investment, the metal, various acrylics and finally the oven fired porcelain has some sort of setting and shape change with time, temperature and humidity. There’s also mechanical distortion if the tray bends, the die is abraded, the material compresses or is pulled slightly from the tray. And of course there are bubbles, contamination and tears.

Any one of these errors—lurking like little gremlins—can easily go undetected by the lab or the dentist. The result – remake.

When you take a digital impression you eliminate all of those chemical and mechanical gremlins.

via Emmott On Technology: Go Digital to Eliminate Pesky Impression Gremlins |

Since I wrote that article several new digital impression systems have come on the market. Recently I took a hard look at the Carestream 3500. I like many aspects of it including ease of use. You just plug it into any USB capable computer there is no need for a dedicated cart. The images are easy to get with simple software and most important the digital impressions are saved in an open standard which can be shared with any open architecture lab or mill.

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