Sponge protection

Abstract

The invention provides a cleaning, grinding and polishing protection core. Wrap the cup-shaped core with a hollow inside, such as a round (semicircle), cylinder, cup, cone, inverted cone, or disc, with a hydrophilic abrasive sponge containing abrasives inside. Cover, and press and fix the edge of the hydrophilic abrasive sponge with a stop plate provided with a rod, so that it is folded into the inside of the above-mentioned core material, or provided with unevenness for clamping, and the shaft is rotated on the bottom surface of the stop plate The center fixes the shaft, which does not resonate when the shaft rotates. With such a protective core, there is no lateral displacement when grinding the crown-shaped interdental spaces and abutment surfaces of the teeth, so that the grinding efficiency is maintained without the use of grinding gel or paste, and the heat generated by friction is less.

Description

technical field [0001] The invention relates to a hydrophilic sponge processing technology and a tooth surface cleaning, grinding and polishing protection core using the hydrophilic sponge. Background technique [0002] Generally speaking, in the past, when tooth surfaces were cleaned by installing protective cores on dental contra angles, tooth surface grinding gel or paste was sandwiched between protective cores (cups) made of silicone rubber or brushes and tooth surfaces. In between, and rub the abrasive paste on the tooth surface for cleaning, grinding and polishing. However, as mentioned above, for the conical protective core made of silicone rubber, etc., the front end is fragile, and when grinding the drum-shaped tooth gap or the adjacent surface, sometimes the front end is bent to cause lateral displacement; For the cup, it is difficult to make it reach the target site. [0003] In addition, the protective core and brush made of silicone rubber, etc., clean the too...

AI Technical Summary

Problems solved by technology

However, as mentioned above, for the conical protective core made of silicone rubber, etc., the front end is fragile, and when grinding the drum-shaped tooth gap or the adjacent surface, sometimes the front end is bent to cause lateral displacement; cup, it is difficult to make it reach the target site

[0003] In addition, the protective core and brush made of silicone rubber, etc., clean the tooth surface by rubbing the abrasive on the tooth surface by rotating force, so not only the remaining abrasive gel or paste will fly out of the mouth, but also to prevent Due to the heat generated by the friction between the silicone rubber and the tooth surface and to maintain the grinding efficiency, it is usually necessary to sandwich the abrasive paste between the protective core and the tooth surface, so the abrasive paste must be replenished frequently, and frequent grinding is required to replenish the abrasive paste. interruption of work

[0004] In order to solve these problems, it is conceivable to use a polishing sponge device that does not require polishing paste. However, if the shape is molded with silicone rubber or the like so that the tip of the detail reaching the tooth surface is sharp or thin, then in It will be broken during grinding and cannot be used for grinding

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