CAD CAM dental means we take your digital scan, design the restoration in software, then mill or print it. Here is how that workflow runs in our lab and what it changes for your case quality.
CAD CAM dental is the design and manufacturing half of the digital dental lab workflow we run. You send a scan, we turn it into a fabricated restoration. This guide walks a dentist through each stage, what the software and AI actually do, and where milling and printing fit.
What CAD CAM Dental Means in the Lab
CAD CAM stands for computer aided design and computer aided manufacturing. CAD is the software stage where a technician designs the crown, bridge, inlay or onlay on screen from your digital impression. CAM is the manufacturing stage where a milling machine or printer produces the physical part. Together they replace the wax, invest and cast steps of the analogue route.
For you nothing changes at the chair beyond the scan itself. The shift is on our side: a design file we can check, version and reuse, and a fabrication step that holds tolerances a hand process cannot.
- CAD: designing the restoration in software from your scan, setting margins, contacts, occlusion and emergence.
- CAM: converting that design into toolpaths and producing the part by subtractive milling or additive printing.
It Starts With Your Scan
Everything downstream depends on the file you send. We accept STL and proprietary scan exports from 3Shape, Medit, iTero and Dexis, so you design your scan protocol around your own scanner, not ours. A clean margin capture, dry field and full antagonist arch give the design technician something to work with.
A poor scan does not get fixed by good software. If the margin is blurred or the prep is undercut on screen, we flag it back to you rather than guess. The scan stage and the design stage are two different jobs, and we treat them that way.
For capture technique and scanner setup, see our guide to intraoral scanning for dentists.
The Design Stage: What the Software Does
In the CAD software the technician aligns your scan, marks the preparation margin, then builds the restoration onto the digital model. Modern dental CAD software proposes a starting shape from a tooth library, which the technician then adjusts for your case rather than accepting as is.
- Margin line: traced on the prep so the restoration seats with a defined, controlled fit rather than a chairside compromise.
- Contacts and occlusion: set against the antagonist and adjacent teeth using the digital articulation, so adjustment time at fit is reduced.
- Emergence and contour: shaped for the soft tissue and the patient’s existing anatomy, not a generic crown form.
- Material parameters: minimum thickness and cement gap set for the chosen material before anything is manufactured.
Because the design is a file, we can show it to you before fabrication on complex cases, and we can rebuild from the same scan if a remake is ever needed.
Where AI Fits Into Fabrication
AI in dental CAD is assistance, not autopilot. The useful work it does today is in the repetitive, error prone steps of the design stage, with a technician reviewing every result before it goes to manufacturing.
- Margin detection: AI proposes the preparation margin on the scan, which the technician confirms or corrects, speeding a step that is easy to get slightly wrong by hand.
- Contour and morphology: AI suggests a restoration shape from large case libraries, giving a better starting anatomy than a single generic template.
- Scan clean up: automatic removal of artefacts and soft tissue noise so the design is built on clean geometry.
Where AI genuinely helps is consistency. The same margin logic and contour suggestions are applied across cases, so a busy day does not produce a worse design than a quiet one. The technician stays in control of the clinical decisions, which matters most on an AI zirconia crown fabrication case where strength and fit are not negotiable.
Milling Versus 3D Printing
CAM splits into two routes. Dental milling is subtractive: a bur cuts the restoration out of a solid block or disc of material. 3D printed dental work is additive: the part is built up in layers from a resin or, increasingly, other materials. They are not rivals, they suit different jobs.
- Milling: used for definitive zirconia and lithium disilicate crowns, bridges and onlays, where you need a fully sintered, high strength ceramic from a controlled industrial block.
- 3D printing: used for models, surgical guides, try ins, temporaries and increasingly some definitive resin work, where geometry is complex and material strength demands are lower.
For a definitive ceramic crown we mill. For the supporting parts of the case, models, guides and provisionals, printing is faster and cheaper. Choosing the right route per part is part of what you are paying a lab to decide.
Accuracy and Fit
The whole point of CAD CAM dental is repeatable accuracy. A milled restoration is cut from a homogeneous block by a machine working to a few microns, so the marginal fit and internal fit are consistent in a way hand casting is not. The cement gap is a design parameter we set, not an accident of the technique.
Accuracy still starts and ends with the scan. The machine reproduces the design faithfully, so if the design was built on a clean margin from a clean scan, the part fits. This is why we will push back on a marginal scan rather than mill from it and hope.
Material strength and fit specifics live in our zirconia crowns lab guide.
What This Means for Turnaround
A digital design and milling workflow removes several manual steps, which makes the process more predictable, not instant. For crown and bridge we work to around ten working days. We would rather quote that honestly than promise same day work we do not run and then miss it.
What the digital route buys you is fewer surprises. A design we can check before fabrication, a file we can remake from, and tolerances that reduce chairside adjustment all mean fewer remakes and return visits, which is the turnaround that actually affects your day.
Sending a Case to Flora
Send us a scan from your 3Shape, Medit, iTero or Dexis system with the prescription, and we handle design and fabrication from there. We are a UK lab working with UK practices, DAMAS, DLA and GDC registered, so the chain of accountability is clear.
If you have not worked with us, your first case is free up to £100, with no invoice and no contract. Send one crown, see the fit and the design quality on your own patient, then decide.
For complex anterior cases we can run a diagnostic wax up and try in before fabrication.
What does CAD CAM mean in dentistry?
CAD CAM means computer aided design and computer aided manufacturing. CAD is the software stage where the restoration is designed from your digital scan. CAM is the stage where a milling machine or 3D printer produces the physical part.
What are the disadvantages of CAD CAM dentistry?
The main drawbacks are equipment cost, the training the workflow demands and material limitations, since not every material suits every fabrication route. Sending cases to a lab removes the equipment and training burden from your practice while keeping the accuracy benefits.
How long do CAD CAM crowns last?
Longevity depends far more on material choice, oral hygiene and occlusion than on the fact a crown was made by CAD CAM. A well designed, well fitting milled crown supports a long service life because the marginal fit is consistent. See our zirconia crowns lab guide for material specifics. zirconia crowns lab guide
What types of restorations use CAD CAM dentistry?
Crowns, bridges, inlays, onlays and veneers are routinely designed and milled with CAD CAM, while models, surgical guides, try ins and provisionals are commonly 3D printed. The lab chooses milling or printing per part based on the strength and geometry needed.
Is milling or 3D printing better for dental work?
Neither is better outright. Milling suits definitive high strength ceramics like zirconia and lithium disilicate. 3D printing suits models, guides, temporaries and complex geometry where strength demands are lower. A good lab uses both and picks the right route per part.
How does AI help in dental CAD CAM fabrication?
AI assists the design stage by proposing the preparation margin, suggesting restoration contour from large case libraries and cleaning scan artefacts. A technician reviews every result, so the clinical decisions stay human while consistency across cases improves.
