SHELL-SHAPED DENTAL INSTRUMENTS

Abstract

Disclosed is a shell-shaped dental instrument. The shell-shaped dental instrument includes a shell-shaped body (100) having a plurality of tooth-receiving cavities. The shell-shaped body (100) includes a layer block (101), and the layer block (101) includes a retaining member (102) located on the labial and / or buccal side of the shell-shaped body (100) and protruding away from the teeth, and a contact member (103) connected to the retaining member (102), wherein the retaining member (102) is configured to contact the labial and / or buccal muscles during use of the shell-shaped dental instrument, so that the force exerted by the labial and / or buccal muscles on the retaining member (102) is at least partially transmitted to the gingiva (300) through the contact member (103).By adopting a shell-shaped tooth-revealing instrument, the problem of labial and / or buccal muscles hindering tooth growth during orthodontic treatment can be avoided by placing a layer block (101), and transmitting part of the pressure exerted by the labial and / or buccal muscles to the gingiva (300) through the contact portion, thereby increasing the retention force of the shell-shaped dental instrument on the gingiva (300), improving the orthodontic effect, and shortening the orthodontic cycle.

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