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How CAD CAM Crowns Work: From Digital Scan to Finished Tooth

Written by Dental Designs Clinic Singapore | Mar 31, 2025 5:00:00 PM

Dental technology has come a long way, and one of the most exciting developments in recent years is the use of CAD/CAM systems to produce same-day crowns. CAD stands for computer-aided design and computer aided manufacturing stands for CAM. This makes it possible to create accurate, durable, and aesthetic restorations without relying on traditional laboratory methods. Instead of waiting weeks for a dental crown to be made at a dental laboratory, patients can now have a high-quality restoration created and placed in a single visit at the dental office. 

How does CAD/CAM work?

1. Digital scanning

The process begins with digital scanning of the mouth with a CEREC scanner. This step replaces traditional impressions, which many patients find messy and uncomfortable. Instead of using physical impressions with putty materials, the dentist uses an intraoral scanner to capture a detailed 3D image of the tooth. The scanner, a key component of digital dentistry, produces a digital model of the prepared tooth and surrounding structures. These digital impressions are much more accurate than traditional methods and lead to more favourable clinical outcomes.

2. CAD: Computer aided designing

Once the digital image is obtained, it is transferred to dental design software. This software allows the dental team to customise the restoration, whether it’s a crown veneer inlay, onlay, or veneer. Using design and computer-aided, the dentist creates a restoration that closely resembles the natural teeth in shape, size, and color. The software considers the tooth structure, bite, and alignment to ensure the crown will function properly once placed.

3. CAM: Computer aided manufacturing

The next step involves sending the design to a milling machine located within the dental practice. This chairside milling unit is the heart of the CAD/CAM process. It carves the crown from a solid block of ceramic material, such as zirconia or lithium disilicate. A single block of ceramic is selected to match the shade of the patient’s natural teeth. The block of ceramics is then shaped into a crown using precise measurements controlled by advanced dental software programs. This digital workflow allows the actual restoration to be completed in as little as 10 to 30 minutes.

4. Try-In, Adjustment, and Cementation

Once the milling is finished, the dentist tries in the crown and checks for proper fit and bite. Minor adjustments can be made using dental tools or polishing techniques. If necessary, the color can be enhanced before final cementation. Because CAD-CAM technology offers such precision, these crowns usually require fewer adjustments than traditional crown systems made through outsourcing to a dental laboratory.

After confirming that the fit and appearance are ideal, the crown is bonded to the tooth. This step restores function and appearance instantly, eliminating the need for a temporary crown or follow-up visit. Patients benefit from reduced chair time, increased convenience, and better overall patient satisfaction.

 

What are CAD/CAM crowns made of?

CAD/CAM crowns are typically made from high strength ceramic materials with durability. Materials like zirconia crowns or lithium disilicate provide both mechanical strength and aesthetic value. These high-quality cad cam restoration not only look like natural teeth but are also resistant to wear and staining. With proper care, they can last many years, making them a long-term solution for restorative dentistry.

Patients benefit not only from the aesthetic appeal of ceramic crowns but also from the strength and longevity of the materials used. With adequate strength, accurate measurements, and rapid fabrication, CAD/CAM dentistry is changing the landscape of high-quality dental care.

What are the benefits of CAD/CAM crowns?

There are numerous advantages to using digital technologies in restorative dental care.

  • The primary advantage is the speed. Patients can receive a same day crown replacement without the inconvenience of a temporary restoration. Typically, crown tooth procedure time takes around 2 weeks for traditional methods of replacing a crown.

 

  • Digital impressions offer comfort and accuracy that is often lacking in traditional impressions. Digital impressions also reduce errors caused by distortions in stone models or physical impressions. The use of non-contact scanners, 3D printing technology, and optical impression systems has dramatically enhanced accuracy in scans and clinical practice outcomes. 

 

  • The ability to design and produce crowns within the dental office reduces shipping costs and outsourcing costs typically associated with using external dental laboratories. This can help lower the overall treatment cost while increasing efficiency for both the dentist and the patient.

 

  • The entire process, from intraoral scanning to milling, is completed using digital dental technology and dental treatment software. The use of a ceramic block for creating aesthetic restorations directly in the dental office gives the dental team complete control over the final result. This is a major advantage in achieving lasting restorations that meet both functional and cosmetic goals.

 

  • Clinical studies have shown that CAD CAM crowns are as strong and reliable as those made with traditional workflows. In many cases, they outperform traditional crown techniques in terms of patient satisfaction and aesthetic outcomes. Dental professionals and dental staff are increasingly incorporating CAD-CAM dentistry into everyday practice due to its predictable results and efficiency.

 

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Applications Beyond Single Crowns

Digital dentistry has also opened doors for more complex restorations. For example, implant-supported restorations, crown lays, and ceramic restorations can all be designed using digital workflows. The same principles apply when fabricating partial dentures, complete dentures, or custom dental prosthetics using a digital model created from an intraoral scan.

In addition to single-unit crowns, CAD/CAM systems are being used for crown systems that include multiple teeth (bridges) or full-arch reconstructions (dentures). When it comes to aesthetic restorations, CAD-CAM systems allow for customization and accuracy that surpass traditional materials and analog impressions.

Incorporating CAD/CAM systems into dental clinics is a smart investment in technology. It reflects the evolution of the dental industry and the growing role of communication technology in clinical settings. Dentists can collaborate with dental technicians more efficiently, ensuring that even complex restorations meet the highest standards.

 

Conclusion

In summary, CAD/CAM crowns are a valuable addition to the digital dentistry tool kit. From the moment the intraoral scanner captures a 3D image to the placement of a custom crown carved from a solid ceramic block, the entire process is efficient, accurate, and patient-friendly. Whether you’re in need of a replacement for a damaged tooth or seeking aesthetic improvement, same-day crowns offer a reliable and convenient solution.

If you’re interested in learning more about how CAD/CAM crowns can restore your smile, feel free to contact our dental office to schedule a consultation.

Call us at : +65 6221 8284