SU376092A1 - c-CCRONAL nAilliiliG-liXlSH'iKKAf - Google Patents

Description

one

The invention relates to a dental technique.

The process of checking the parallel band of dental surfaces under the cows, carried out by known devices containing two sponges and guides, is very complex and takes a long time.

To simplify and speed up the testing process in the proposed device, unlike the known ones, the sponges are mutually movable, elastically interconnected, and the circular cross-section guides are rigidly fixed in them, directed towards the sponge antagonist, and pass through the hole in it; on the free end of the guides are fixed finger stops made in the form of oval plates.

In FIG. 1 shows the proposed device, side view, with cuts; in fig. 2 is a view along arrow A and FIG. one.

The sponges have, on the elongated part of the p., Working surfaces 2 directed towards each other and covered with paste for ballpoint pens. In the thickened part of each sponge there is fastened one of the guides 3 of circular cross section, which pass through the opposite sponge, and a pin 4 for fastening the retaining spring 5. The insert 6, having

the through holes for the guides and the tension spring provide the necessary clearance between the jaws in a static position. On the H1 guides 3 are fixed lamellar supports 7 for the fingers, made in the form of oval plates and serving for the convenience of working with the device.

The device works as follows. The doctor with two fingers pushes on the plastic supports 7, thereby pushing the sponge /, and brings the device to the treated tooth. When the force of the fingers of the sponge is weakened, the checked tooth is compressed, and a dark trace of the paste remains at the equatorial point.

Subject invention

A device for controlling parallelism in the treatment of teeth under crowns, containing two sponges and guides, characterized in that, in order to simplify and speed up the process of checking the parallelism of the surfaces of the teeth being processed, the sponges are mutually movable, resiliently interconnected, and the guides are round The sections are rigidly fixed in them, directed towards the antagonist sponge and passing through the opening in it; on the free end of the guides are fixed finger stops made in the form of oval plates.

NS

FIG. 2