OVERVIEW OF 3D PRINTING TECHNOLOGIES IN DENTISTRY
Today, in an age of high speeds and scientific discoveries, people are trying with all their might to speed up the process ofdeveloping and publishing a new product. One of these ways is the use of rapid prototyping technique (rapid creation of a prototype of the equipment being developed to conduct a series of tests on it or to refine it to the final product). In the beginning, classical methods (turning, milling, stamping) were used to make prototypes, but this was inconvenient for a number of reasons (such production of blanks generates a large amount of waste, the work must be performed by qualified personnel). Therefore, in the 80s of the last century, an alternative appeared - the object is not made "at once" (from a workpiece by changing its shape), but layer by layer (moreover, rather unusual materials are used - metal and plastic powders, various types of clay, polymers sensitive to light), after which the layers are held together. This review focuses on common 3D printing technologies used in dentistry. Technologies and schemes of 3D printing are presented.