Investing in a dental milling machine is a defining decision for a laboratory. Beyond the purchase price, what truly matters is the total cost of ownership and compatibility with your workflow. Here are the criteria that make a real difference.
4 axes or 5 axes?
A 5-axis milling machine works at angles that a 4-axis machine cannot reach: undercuts, angled abutments, complex implant bars. For a laboratory looking to cover a wide range of indications (and avoid being limited within 6 months), 5-axis is now the standard.
Dry or wet milling?
- Dry: ideal for zirconia and PMMA, lower maintenance, no liquid management required.
- Wet: essential for lithium disilicate (glass-ceramic) and glass, which generate heat during milling.
Many laboratories choose a machine capable of both, or dedicate one machine per material to avoid losing time on switchovers.
Open workflow: the decisive criterion
An open workflow milling machine accepts files from any CAD software (Exocad, 3Shape, DentalCAD) and any brand of material. Conversely, a closed system locks you into an ecosystem with proprietary consumables that are often more expensive. Prioritize open systems to maintain control over your costs and suppliers.
The real costs to compare
- Tools (milling burs): service life, unit price, availability.
- Maintenance: spindle, tool changer, service contracts.
- Milling time per unit — this directly impacts your production capacity.
- Technical support: a responsive after-sales service prevents costly days of downtime.
Sizing according to your volume
An automatic tool changer and a disc loader quickly become cost-effective beyond a certain number of units per day: the machine works without intervention, including overnight. For moderate volumes, a simpler machine that is well utilized is sufficient.
Pre-purchase checklist
- 5 axes + open workflow (Exocad / 3Shape).
- Target materials (zirconia, PMMA, lithium disilicate?) → dry and/or wet.
- Cost of tools and after-sales service, not just the purchase price.
- Milling time compatible with your volume.
- Availability of parts and support in your country.
A personalized quote based on your volume remains the best way to compare on a like-for-like basis.
