Setting Up a Zirconia Milling Workflow for a New Dental Lab
Setting up a new dental lab's zirconia CAD/CAM workflow is both a capital decision and a process design challenge. The equipment choices interact — your CAD software choices constrain your CAM options, your mill choice affects your material options, and your sintering furnace choice affects your speed sintering capability. Getting the dependencies right from the start avoids costly changes later.
Step 1: Define Your Case Mix
Before buying anything, answer these questions:
- Single units or multi-unit bridges, or both?
- Will you do implant cases? If so, will you need screw-retained work (requires 5-axis)?
- What volume do you expect? How many units per day at target capacity?
- Will you mill any materials other than zirconia (PMMA, glass ceramic, titanium)?
- Do any clinician clients require same-day delivery?
These answers determine whether you need 4 or 5-axis, wet/dry capability, speed sintering, and what software modules you need.
Step 2: Scanner Selection
If you're accepting digital files only (offices scanning and sending), you may not need your own lab scanner initially. If you're receiving physical models that need scanning for CAD, a 3D lab scanner is essential. Lab scanners (3Shape E Series, Medit T series) are separate from intraoral scanners — verify what format models are coming in from your client base and what you need to process them.
Step 3: CAD Software
exocad DentalCAD is the dominant choice for new lab setups with open-system preferences. It integrates with all major scanners, supports all major implant component libraries, and gives you flexibility on the milling side. Start with the core module and add implant planning (exoplan) and other modules as your case mix requires.
Evaluate licensing: perpetual makes sense if you expect sustained volume; Flex reduces upfront risk if you're building a client base.
Step 4: Milling Machine
For a new lab expecting to grow into implant work, start with 5-axis. The Aidite AMD-500S Pro is a strong value choice for a new lab — capable 5-axis at a reasonable capital cost. The Roland DWX-52DCi is worth the premium if budget allows and you want the Roland reliability track record.
For CAM: MillBox integrates well with both machines and gives you a growth path if you add machines later. Bundled CAM is acceptable if MillBox is cost-prohibitive at launch.
Step 5: Sintering Furnace
For a new zirconia lab, a sintering furnace with speed sintering capability is the right choice — same-day capability is increasingly table stakes. Aidite's sintering furnaces offer good price/performance for a startup lab. If budget allows, Nabertherm gives you better temperature uniformity for premium aesthetic cases.
Step 6: Materials Selection
Start with a primary zirconia line — Aidite AiZir covers the full grade range (HT, SHT, SHTM) and is validated for Aidite equipment. Establish your coloring liquid protocol for the blank formulations you stock. Keep PMMA blanks for provisionals. Expand into glass ceramics and titanium after the primary zirconia workflow is stable.
Step 7: Quality Validation Before Production
Before taking live cases, run a validation protocol:
- Mill test units at each standard disc/grade you stock
- Fire at standard and speed sintering profiles; verify fit and shade results
- Establish your scan-to-delivery workflow with internal test cases
- Document your baseline calibration settings
Discovering calibration issues on test cases is learning. Discovering them on live patient cases is a remakes problem.
Minimum Equipment List for a New Zirconia Lab
- Lab scanner (if accepting physical models)
- exocad DentalCAD (core + implant module if needed)
- 5-axis milling machine (Aidite AMD-500S Pro or equivalent)
- MillBox or compatible CAM
- Sintering furnace with speed sintering capability
- Zirconia disc inventory (SHT and HT minimum)
- Coloring liquids to match zirconia line
- Milling burs (material-specific sets)
- Sandblasting unit (Renfert Basic)
- Scanning spray
- Finishing/polishing supplies