Many of us have seen CNC technology on television shows. A computer maps a design, and either a high speed water jet or a milling bur cuts a piece of metal into the shape needed.
There is finally a machine which we consider accurate enough for us at the DiBona Dental Group to use to cut crowns from pure porcelain ingots. The E4D uses a laser camera to take a "picture" of your prepared tooth (no messy impressions). We can then send that picture to a milling machine in our lab, where an extremely accurate crown is milled in just a few minutes. We can then place that crown for you on the same day.
Advantages? The crown is accurate and strong, and you don't have to come back 2 weeks later for your final crown.
Go to the E4D website for more information:
http://e4d.com/patients/
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