Disposable anti-demoulding lower jaw tray

• Main Author: ZHOU TUANFENG
• Format: Patent
• Language: Chinese; English
• Published: 18.02.2022
• Subjects: APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE; DENTISTRY; HUMAN NECESSITIES; HYGIENE; MEDICAL OR VETERINARY SCIENCE

The invention discloses a disposable anti-demoulding lower jaw tray. A T-shaped retention device is additionally arranged in the middle of the inner side and the outer side of a tray body, the edge of the tray body is designed to be of an inwards-rolled locking retention structure, the bottom of the tray body is designed to be of a double-layer bottom, and a retention window is enlarged in the bottom of the inner layer, so that impression materials can conveniently penetrate through the retention window to flow into a retention cavity between an inner bottom and an outer bottom. A thin-column-shaped supporting column retention device is arranged in the middle, exhaust holes are formed in the periphery of an interlayer of the inner bottom and the outer bottom, impression materials can conveniently flow into the interlayer to fill the interlayer, good mechanical retention is achieved, it is guaranteed that an impression is not separated from a tray finally, tight combination is achieved, deformation is avoided,