Lava™ Process 1. Incoming contract review is conducted on the dies and models received for suitability.   2. Block out wax is used to block out any undercuts and if necessary a wax pattern for bridgework is made.   3. The component parts of the model/wax up are sprayed with occlusal or scan spray, then the optical scanner is used to scan the components   4. The substructure is then designed using the CAD/CAM software.   5. The codes are scanned into the system from the LAVA blank.   6. The software then calculates the overall shrinkage of the blank and writes the milling programme to compensate for this.   7. The LAVA blank is inserted into the machine and the milling programme is started.   8. The substructure is then removed from the blank by either using glass beads to blast through the sprues or by using a handpiece and burr to cut through them.   9. The substructure is cleaned so it is free from any dust particles.   10. The substructure is then dyed using the appropriate coloured dye for the final shade. It should be immersed in the dye for no longer than 1 hour and no less than 2 minutes. Once this is done, any excess dye is removed.   11. The substructure is then placed on a firing tray using the appropriate firing pins or loops. The tray is then put in the LAVA furnace  and the pre-sinter programme is started.   12. Once the sinter cycle is finished, the substructure is then fitted back to the models or dies using various burrs and handpieces. It is then blasted with 50 - 100 micron alumina.   13. The structure is then checked for any cracks using disclosing liquid, the dies and models are steam cleaned and a final check is conducted before the job is despatched.