Digital Intra-Oral Scanning
With our third intraoral scanner from Medit we can take highly accurate, digital impressions of your teeth fairly quickly.
Barley Mow is still unusual to be using this cutting edge digital technology to make our crowns, veneers and bridges and provide orthodontic treatment.
With this scanner we can:
* scan all your teeth to create 3D models for orthodontic, crown and bridge purposes.
* scan your teeth and construct very accurate dentures.
* scan teeth that have had orthodontic treatment and produce very accurate retainers at any time, on demand.
* scan teeth that are worn or damaged by acid erosion and monitor ongoing wear.
Today there is an increasing number of digital dental scanners on the market as the digital revolution arrives in dentistry.
The Medit Intra Oral Scanner is the third scanner we had purchased. The system is able to build a 3D model of the teeth accurate to microns in a few minutes. The computer STL file is then transferred into the cloud and can then be downloaded by a laboratory and then printed with stereolithography (SLA).
Stereolithography is an additive manufacturing process using a vat of liquid UV-curable photopolymer "resin" and a UV laser to build parts a layer at a time. On each layer, the laser beam traces a cross-section pattern on the surface of the liquid resin. Exposure to the UV laser light sets the resin and so the model is slowly built up, layer by layer.
After a pattern has been traced, the SLA's elevator platform descends by a single layer thickness, typically 0.05 mm to 0.15 mm (0.002" to 0.006"). Then, a resin-filled blade sweeps across the part cross-section, re-coating it with fresh material. On this new liquid surface, the subsequent layer pattern is traced, adhering to the previous layer. A complete 3-D part is formed by this process. After building, parts are cleaned of excess resin by immersion in a chemical bath and then cured in a UV oven.
As dentists we are seeing crowns that fit perfectly first time, with little need for adjustments in the vast majority of cases. This must improve the survival and longevity of the tooth you have invested in compared to conventional impressions and crowns.
For our orthodontic applications the appliances and aligners usually fit well the first time and every time, making treatment more predictable