Mouth gag

Abstract

The utility model discloses a mouth gag which comprises a connecting part and an opening part connected to the connecting part, the opening part comprises a first opening part and a second opening part, and an adjusting assembly is arranged between the first opening part and the second opening part. The adjusting assembly can adjust the distance between the first opening part and the second opening part, so that the opening degrees of the first opening part and the second opening part on the connecting part can be adjusted; wherein the connecting part is used for being connected to an oral cavity scanner, and the opening part is used for being inserted between the upper and lower lip parts and teeth, so that the upper and lower lip parts are opened, and the teeth can be scanned by the oral cavity scanner. The mouth gag is divided into two parts, the whole mouth gag is connected to the oral cavity scanner through the connecting part, the opening part is divided into the first opening part and the second opening part which are separated, and the adjusting assembly is arranged between the first opening part and the second opening part to adjust the distance between the first opening part and the second opening part. The opening degree of the mouth gag is adjusted.

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