For many years, the dentist takes an impression of your teeth with conventional mould. This conventional method has a few disadvantages that may lead to less accurate impression:
- Expansion and contraction of materials and poured models
- The possibility of bubbles, pulls, tears and distortion
- The fragility of stone models
- Patient’s discomfort
With CAD CAM technology using intraoral scanners, all of the above are eliminated as the dentist now scans your teeth and thereafter sends the digital impression to a dental laboratory. If there are any problems with the impression, the dentist can see it right away on the screen and make necessary adjustments. If the dentist is not happy with the scan, it is relatively easy to re-take.
Over at the laboratory, the digital impressions can be downloaded directly to the millers to produce CAD CAM restorations. This process not only greatly reduces patient’s discomfort, it also improves accuracy and aesthetics.