Posted May 9, 2017
This was a fun case! A patient came in for a bridge on the lower left. The margins went really sub gingival so I took an impression and sent to a lab, but in the mean time I just got the Envisiontec Vida printer and decided to give their new C and B resin a try. This resin has a compressive strength of 240 MPa!!! Thats stronger than bonded Empress! And its printed! So it cost just a few bucks! Scanned in CEREC and sent to Tra’ Chambers at Express Dental Lab for conversion and to design the temp. Note how inLab hollows out the models for you t save resin!
Just for kicks we printed out 4 bridges to play with. With DLP printers all the layers are cured at the same time so it printed 4 temps in an hour, if we printed one it would be the same. After removing from the printer we soak the temps in alcohol and place in an ultrasonic for 3 minutes then post cure for another 5 minutes.
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The temps was polished with a rag wheel then used Diashine. Fit great in the mouth. Note the model, really great detail. This is really cool as the resins will keep getting better. Although I am a firm believer that CNC (milling or grinding) will always be with us, its exciting to see the speed and detail and the materials that are coming to 3D printing!
If you want to play with some 3D printers and learn how to do CEREC STL come to Digital Enamel’s course July 28/29 in Burbank! Two days of hands on with printers and Meshmixer, 14 CEU!
