Computer generated restorations

In dentistry, computer-generated restorations refer to the use of digital technologies to design and create dental restorations like crowns, bridges, inlays, onlays, and veneers. The process typically involves the following steps:

1. Digital Imaging:

Initially, digital images of the patient's teeth are captured. This is usually done using intraoral scanners that take highly detailed, 3D images of the teeth and gums. These images replace traditional physical dental impressions.

2. Design Software:

The digital images are then uploaded into specialized computer software. This dental CAD (Computer-Aided Design) software allows the dentist or a dental technician to design the restoration with high precision. The software can adjust the size, shape, and fit of the restoration to match the patient’s dental anatomy.

3. Material Selection:

Depending on the type of restoration needed and its location in the mouth, different materials can be chosen, such as ceramic, porcelain, composite resin, or metal alloys.

4. CAM Process:

Once the design is finalised, the data is sent to a milling machine. CAM (Computer-Aided Manufacturing) technology is used to carve the restoration from a solid block of the chosen material. This process is highly precise and can produce restorations that fit very accurately.

5. 3D Printing:

In some cases, 3D printing technology can also be used to create the dental restoration. This is particularly useful for more complex structures.

6. Sintering and Polishing

Certain materials, like zirconia, require sintering in a furnace to achieve their final strength. After sintering, the restoration is polished or glazed to achieve the desired aesthetic appearance.

7. Final Placement:

The finished restoration is then checked for fit and color match in the patient's mouth and adjusted if necessary before being permanently bonded to the tooth.

This technology offers numerous advantages over traditional methods:

- Precision and Customisation: Digital restorations are highly accurate and can be customized to a great degree.

- Speed: The process is generally faster, reducing the time between diagnosis and treatment.

- Comfort: Intraoral scanners are more comfortable for patients than traditional impression materials.

- Reduced Waste: Computer-generated restorations are efficient in material usage, reducing waste.

- Visualisation: Patients can see the planned restoration on a screen, aiding in understanding and consent.

Computer-generated restorations represent a significant advancement in dental technology, offering improved patient comfort, convenience, and restoration quality.