5 tips for processing zirconia21. October, 2015
1. Stick to the rules
Adhere to the design parameters of the manufacturer in the CAD software and nesting process.
2. Check the instruments
Check the milling machine and milling instruments before milling – to guarantee a precise milling result.
3. Utilise the tips, documentation and media of the manufacturer
The application guide from Amann Girrbach for the Zolid DNA Zirconia materials regarding the customisation or numerous tutorials on YouTube concerning the design, preparation, shading etc. provide highly useful tips & tricks.
4. Careful separation of restorations from the blank
Parallel instruments are best suited – preferably with a small diameter and which do not trim too aggressively. Separate the crown connectors applying only low pressure and circular movements. A soft support on the bench also prevents damage to the framework if it falls on the bench when separating.
5. Carefully trim connectors
Cross-cut tungsten carbide cutters, diamond rotary or abrasive rubber instruments are suitable for trimming connectors on the restoration. I prefer cylindrical or disc-shaped, grey silicone rubber polishers for levelling and smoothing.