There are the main areas of application of 3D printers in dentistry: orthodontics, surgery, prosthetics. As you know, orthodontics is the correction of the occlusion by any method. Previously, these were plates, then braces appeared, and now there are transparent aligners that are new for Russia, which are only gaining momentum. The first plus is that the enamel does not deteriorate. The element of the bracket system is not glued to the tooth, and after the course of treatment it is not dismantled. There is no load on the enamel, it is simply absent.
Take advantage of our servicesSecondly, and most importantly, it is the correct movement of the teeth. Because the teeth move inside the jaw and new bone is formed around them. When the patient is put on braces - they put elastic bands, constantly tighten, and there is always movement of the jaws relative to each other, a change in the bite is possible, and what is worst - constant clicks and discomfort are possible from pain in the cervical spine up to headaches due to the fact that once the patient wore braces.
Transparent aligners are a technology that allows teeth to move in all directions, i.e. and forward and backward and up and down - it all depends on the clinical case.
The next important factor and plus of this technology is that, using transparent aligners, the doctor, having given the cap set to the patient, can forget about it. In a month or three, the patient will come and make a check - if everything is in order, the treatment continues. You don't need to tighten up or visit the dentist regularly.
And finally, an important factor - transparent aligners do not interfere with personal life: they are not visible, food does not get stuck, etc. you are able to do whatever you want. From a meter, transparent aligners are practically not replaceable, unlike braces.
There are two renowned world service centers that provide dentists with services for the manufacture of mouth guards for transparent aligners.
Everything seems to be beautiful, but what is the truth: for a doctor whose duties include only taking an impression or scanning teeth, this set of caps costs about $ 1,500. For the client, this price is $ 3,000.
How were aligners made before?
A plaster model of the initial position of the teeth was removed. It was cut and several blanks were created with the help of wax, which imitate the step-by-step movement of the patient's teeth.
Further, these cut plaster models (the process is absolutely identical to casting in silicone) will be replicated. And according to them, according to these forms, polyurethane models were made for the final vacuum forming.
Sending to customers. Colored polyurethane molds are shipped with an aligner just to mark each step of the treatment.
Production time is about 10 days. A lot of manual labor: cut the plaster model, manually move it. There is no virtual simulation, none of this, all this is done manually - accordingly, one clinical case takes about 10 days in the laboratory. Manual labor - many mistakes creep in.
How is it done today?
The first and most important step is scanning the impression. It can be either a plaster cast or an impression taken through two-component silicone.
After receiving the scan of the impression, the file is "driven" into the software, in which the virtual simulation of the movement of the dentition "from" and "to" occurs, i.e. from the original crooked position of the teeth to the perfect smile.
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