What CAD/CAM Dentistry Is
CAD/CAM dentistry is a digital workflow that uses 3D scans, design software, and milling or printing machines to make dental restorations. The technology replaces traditional putty impressions and off-site lab steps for many cases.
An intraoral scanner captures the shape of your teeth and gums in high detail. Software then designs the restoration on screen. A milling unit or 3D printer produces the final piece from a solid block of ceramic, resin, or other material.[1]
Oral and maxillofacial surgeons use CAD/CAM in two main ways. The first is surgical planning, where cone-beam imaging is paired with digital design to make custom guides for implant placement. The second is restoration, where crowns or bridges are made for implants or extracted-tooth sites, sometimes on the day of surgery.[1]
Visit the oral-surgery page to learn more about how surgeons combine digital tools with surgical care.
How the Technology Works
CAD/CAM works in three stages: capture, design, and manufacture. Each stage replaces a manual step in the older analog process.
Capture begins with an intraoral scanner, a wand-like camera that records thousands of images per second. The software stitches these into a 3D model of your teeth, gums, and bite. For implant cases, this scan is often merged with a cone-beam CT (CBCT) scan, which shows bone and nerve anatomy underneath the surface.[1]
Design happens in specialized software. The clinician or dental technician shapes the restoration on screen, adjusting margins, contacts with neighboring teeth, and bite alignment. For implant surgery, the same software designs a guide that fits over your teeth and directs the surgeon's drill to a planned position and angle.[2]
Manufacture uses one of two methods. Subtractive milling carves the restoration from a solid block of zirconia, lithium disilicate, or composite resin. Additive 3D printing builds surgical guides, models, and some provisional restorations layer by layer. The finished piece is then polished, glazed, or cured before placement.[1]
Chairside vs. Lab-Based Workflows
Chairside CAD/CAM means the entire process happens in the office during your appointment. The clinician scans, designs, and mills the restoration while you wait, often in 60 to 90 minutes.[3]
Lab-based digital workflows send the scan electronically to a dental laboratory. The lab designs and manufactures the restoration, then ships it back. This pathway suits more complex cases that benefit from a master technician's expertise.
Clinical Applications in Oral Surgery
Oral surgeons use CAD/CAM mainly for implant planning, custom abutments, immediate provisional crowns, and surgical guides. Some practices also offer same-day final crowns in select single-tooth cases.
The applications fall into a few common categories, each with different evidence and patient expectations.
Guided Implant Surgery
Computer-guided implant surgery uses a CAD/CAM-printed guide to direct each drill and implant to a pre-planned position. This is especially valuable in patients with limited bone, complex anatomy, or higher medical risk, where flapless or minimally invasive techniques reduce surgical time.[2]
Research has documented modified guided techniques used safely in medically complex patients, including those classified as ASA-III by the American Society of Anesthesiologists.[2]
Immediate Loading and Same-Day Restorations
In carefully selected cases, an implant can receive its final crown on the day of surgery. A 2020 case series of single posterior implants restored with their final CAD/CAM crown at the time of placement reported promising 2-year outcomes, though the sample was limited and results may not apply to all patients.[4]
Same-day chairside CAD/CAM has also been used to restore individual teeth with esthetic zirconia in patients with high dental anxiety, reducing the number of visits required.[3] Results vary by case complexity and material selection.
Custom Abutments and Full-Arch Prosthetics
CAD/CAM is widely used to design custom implant abutments and screw-retained bridges that match a patient's specific anatomy. Digital workflows allow the prosthetic to be designed before surgery, supporting more predictable esthetic outcomes.[1]
Evidence and Effectiveness
Research demonstrates that digital CAD/CAM workflows can match or exceed conventional methods for fit and predictability in many fixed prosthodontic cases, though long-term comparative data remain limited for newer materials.[1]
Individual CAD/CAM scanners, milling units, and 3D printers used in U.S. dental offices are FDA-cleared as medical devices through the 510(k) pathway. FDA clearance means the device has been judged substantially equivalent to a legally marketed predecessor; it is not the same as FDA approval, which involves a different and more rigorous review pathway.
A 2024 review in Cureus examined how digital workflow integration affects fixed prosthodontics. The authors concluded that digital methods support efficient workflows and good clinical outcomes, while noting that operator training and case selection strongly influence results.[1]
A 2020 case series in the International Journal of Oral Implantology reported 2-year follow-up of posterior single implants restored with same-day final CAD/CAM crowns; outcomes were favorable, but the small sample size limits how broadly the findings apply.[4] The American Association of Oral and Maxillofacial Surgeons publishes patient information on implant surgery and related digital techniques.[5]
Benefits and Limitations
CAD/CAM offers efficiency and precision in many situations, but it is not universally better than conventional methods. Honest comparison helps you decide what matters most for your case.
Potential Benefits
Digital impressions are typically more comfortable than traditional putty trays, particularly for patients with a strong gag reflex.[3] Visit counts can drop when a restoration is delivered the same day.
Digital design files are stored and can be reused if a restoration is later damaged. Guided surgery may improve implant placement accuracy compared with freehand placement, especially in challenging anatomy.[2]
- Fewer visits in select single-tooth cases
- More comfortable scanning for many patients
- Digital records that can be reproduced if needed
- Improved planning for complex implant anatomy
Limitations and Trade-offs
Same-day delivery is not appropriate for every case. Full-arch reconstructions, complex bite reconstructions, and cases needing significant soft-tissue healing typically require multiple visits regardless of technology.
Chairside milling materials are limited compared with the full range available through traditional labs. Highly esthetic anterior restorations sometimes still benefit from a master ceramist's hand layering. Operator experience strongly affects results, and not every office invests in ongoing training.[1]
- Not all cases qualify for same-day delivery
- Material options can be more limited chairside
- High-esthetic anterior cases may favor lab-based work
- Technology depends on operator skill and training
Cost and Availability
Costs typically range from about $1,000 to $3,500 per restored tooth for a CAD/CAM crown, with implant-supported restorations often higher. Costs vary by location, provider, material, and case complexity.
Surgical guides for implant planning often add several hundred dollars to the overall implant fee, though some practices include the guide in a bundled implant cost. Custom abutments and full-arch digital prosthetics typically run several thousand dollars per arch and are usually quoted as part of a larger treatment plan.
Dental insurance generally covers crowns and implant restorations using standard procedure codes regardless of whether they are made with CAD/CAM or conventional methods. Coverage levels and annual maximums vary widely. Ask your provider's office to submit a pre-treatment estimate to your insurer for a clearer picture.
Availability has expanded significantly. Many oral surgery practices in mid-size and large markets now use digital scanners and CBCT-guided planning routinely, while chairside milling is more common in restorative-focused practices.
Finding a Provider and Questions to Ask
Look for an oral surgeon or restorative dentist who uses CAD/CAM as part of a complete digital workflow, not just as a marketing feature. The best providers can explain when digital methods help and when conventional steps are still preferred.
Ask specific questions during your consultation to understand how the technology applies to your case.
- Do you use intraoral scanning, CBCT, or both for planning my case?
- Will my restoration be milled in-office or sent to a digital lab?
- Is my case suitable for same-day delivery, and why or why not?
- What materials do you use, and how were they selected for my situation?
- Will you use a surgical guide if I'm getting an implant?
- How many cases like mine have you treated with this workflow?
- What happens if a restoration needs to be remade later?
Find an Oral Surgeon Using CAD/CAM
Search MSD's directory to find oral surgeons in your area who use CAD/CAM and digital workflows. Visit the oral-surgery page to compare credentials, training, and technology before booking a consultation.
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