34 results about "Lower incisor" patented technology

Described is a mandibular manipulator instrument as a standalone tool or with associated mouthpiece that includes two interlocking laterally sliding frames including a movable upper and a lower incisor pull, shaped for receiving a patient's central incisor teeth and a pair of pinion shafts for driving the upper and lower incisor pulls. A screw thread is used to provide a precise lateral motion for the sagittal measurement. The mouthpiece is constructed of resilient rubber. The manipulator is positioned and held in the resilient rubber mouthpiece by the two pinions protruding through acoustically tight apertures respective to each pinion's position. The manipulator can be used for other applications in an embodiment without the mouthpiece and / or in combination with a bite registration shape that is part of the manipulator frame.

A vocalization appliance for assisting vocal cord closure training includes: an inner arc plate, an outer arc plate, and two partitions which are oppositely disposed, wherein the inner arc plate is opposite to the outer arc plate, and the two partitions are placed with an interval between the inner arc plate and the outer arc plate; the two partitions, the inner arc plate and the outer arc plate are enclosed to form an accommodating cavity, and the accommodating cavity is separated into an upper accommodating room and a lower accommodating room along a height direction; the upper accommodating room accommodates upper incisors while the lower accommodating room accommodates lower incisors; opposite side ends of the inner arc plate respectively extend away from the accommodating cavity, and opposite side ends of the outer arc plate also respectively extend away from the accommodating cavity, thereby separating mouth corners.

The invention provides a device for measuring the protruding distance of the mandible, which comprises a rectangular parallelepiped hollow box body, two ends of the box body are opened, and one end of the box body is provided with a protruding block as an external fixer for the upper teeth, and the outer fixator for the upper teeth is connected with the box Solid connections between bodies. In addition, an internal fixation part for the upper teeth is provided, and a groove for inserting the upper incisors is formed between the external fixation part for the upper teeth and the inner fixation part for the upper teeth. It also includes a measuring ruler and a lower tooth internal fixation piece and a lower tooth external fixation piece at the head end of the measuring ruler. A groove for placing the lower incisors is formed between the lower tooth internal fixation piece and the lower tooth external fixation piece. Place the upper and lower incisors of the patient in the above grooves respectively, induce the patient's mandible to move backward, and drive the measuring ruler back until the mandible is in the maximum retracted position, and record the reading of the measuring ruler at this time; then ask the patient to protrude the mandible until it reaches the maximum forward position , and record the reading of the measuring ruler at this time again. The difference between the two readings is the distance from the mandibular maximum retreat position to the protruding position to the maximum protruding position, which is the maximum protruding distance of the mandible.

A vocalization appliance for assisting vocal cord closure training includes: an inner arc plate, an outer arc plate, and two partitions which are oppositely disposed, wherein the inner arc plate is opposite to the outer arc plate, and the two partitions are placed with an interval between the inner arc plate and the outer arc plate; the two partitions, the inner arc plate and the outer arc plate are enclosed to form an accommodating cavity, and the accommodating cavity is separated into an upper accommodating room and a lower accommodating room along a height direction; the upper accommodating room accommodates upper incisors while the lower accommodating room accommodates lower incisors; opposite side ends of the inner arc plate respectively extend away from the accommodating cavity, and opposite side ends of the outer arc plate also respectively extend away from the accommodating cavity, thereby separating mouth corners.