[Comparison of the commercial-functional characteristics of various brackets]

The object of the scientific research from the Authors, has been to carry out research into a pertaining to the technology of marketable goods about three types of brackets of Roth system, today on the market. These brackets have been used for refined function of position of the tooth into the three planes of the space for obtaining a correct occlusion, the material and the technical shrewdness used in the construction of this connecting, have been considered in functional sense too.