Importance

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Abstract

An apparatus for sharpening cutters of periodontal instruments comprises a base supported on a parallelogram formed by two carriers in which is mounted in rotary manner a grinding wheel. At the lower ends the carriers are mounted in a support plate, which is mounted by a pivot pin on a support arm of a swivel head. Below the carriers is displaceably mounted a link, which is coupled to the lower pivot pin of one of the carriers. During the rotary movement of the swivel head, the link is moved along a template, through which it is possible to adjust the angular position of the grinding wheel relative to the cutter in accordance with an eccentric relief or a bevel cut to be made. The grinding wheel is driven by a drive motor via an envelope drive, which is located in a casing, which receives all the elements of the rotating and fixed parts, with the exception of the base and the upper ends of the carriers. The apparatus permits the sharpening of the cutters of periodontal instruments in a reproducible manner, without having to depend on manual skill.

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First Claim