34 results about "Lower incisor" patented technology

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

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 three-dimensional computer model of the patient's tooth, including the pulp chamber and root canals, is created by combining at least one grey value image of the tooth and / or surface information about at least part of the intra-orally visible part of the tooth with a statistical, parameterized shape model of each tooth type (upper or lower incisors, canines, pre-molars, molars) as the patient's tooth to be treated. This allows for planning and / or simulation of one or more root canal treatments on the computer model of the patient's tooth and that the dentist or dental specialist is given qualitative and / or quantitative information by the system in order to aid in adequately analyzing the risks related to performing the root canal treatment with the proposed or user-selected endodontic tools.

A TemporoMandibular Joint (TMJ) balancing appliance and a method for using the same are provided, in which a first base portion accommodates incisor teeth, a second base portion is extended from a left side of the first base portion and accommodates left molar teeth, and a third base portion is extended from a right side of the first base portion and accommodates right molar teeth. The first base portion includes an upper part for accommodating upper incisor teeth and a lower part for accommodating lower incisor teeth and has a center for accommodating the upper and lower incisor teeth higher than the left and right sides.

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.

The present invention relates to an orthodontics and temporomandibular joint balancing appliance, particularly to an orthodontics and temporomandibular joint balancing appliance, which eliminates asymmetric imbalance of a temporomandibular joint caused by pressure applied to upper incisor teeth and lower incisor teeth, thereby cushioning every teeth occlusion and blocking nervous system compression, so as to minimize teeth damage and improve wearing comfortness.

The invention relates to an appliance for guiding a mandible forward and / or getting rid of a bad habit of sucking a lower lip and a preparation method thereof. The involved appliance comprises a base plate, the base plate is provided with fixing components, a palatal side inclined-face guide plate and a lower incisor teeth cap for guiding the mandible forward, and the palatal side inclined-face guide plate is provided with inclined guide wires. The involved preparation method comprises the following steps: acquiring a relationship in clinic; bending the fixing components and the inclined guide wires; laying a mandible tongue side with wax from a mouth bottom to a position about 1-2 mm above a lingual frenum, and fixing the inclined guide wires with wax; and connecting the fixing components into a whole at a palatal side by plastic cement, preparing the palatal side inclined-face guide plate, and connecting with the inclined guide wires fixed by the wax into a whole by plastic cement. According to the appliance, the palatal side inclined-face guide plate is added with the inclined guide wires, the mandible incisor teeth cap guides the mandible forward, the mandible is passive to extend forward, at the same time, the lip is limited to incline down to anterior teeth, a force source is concentrated at maxillary and mandible anterior teeth areas, mandible posterior teeth have no contact with the appliance, and mandible molars can be extended, so as to correct deep overbite and correct and cure an Angle II type relationship.

The invention provides an orthodontic device for assisting mandibular protraction and adduction of upper anterior teeth, and relates to the field of orthodontic clinical instruments. The device includes a planar guide plate parallel to the occlusal plane, a guide rod, a bracket, and implant anchorage screws; the planar guide plate is arranged on the palatal side of the maxillary central incisor and occludes with the lower incisor; the support includes an arc-shaped main body, a first connecting rod , a traction post and an attachment part, the two ends of the arc-shaped main body are respectively connected with the attachment part, and the arc-shaped main body is connected with a first connecting rod extending in the mesial direction and a traction post extending in the mesial occlusal direction; the proximal part of the first connecting rod The middle end is connected with the plane guide plate, the occlusal side of the plane guide plate is connected with a guide rod, and the guide rod is against the lingual side of the lower incisor; the implant anchorage screw is set on the upper palate, and the implant anchorage screw and the traction column are set A stretched rubber band. The present invention can carry out functional correction and fixed correction at the same time for the case of mandibular retrusion and the growth and development peak accompanied by crowded upper dentition at the same time, and the treatment time is relatively short.

The present invention relates to one kind of life article and is especially one kind of teeth sheath for protecting incisors against damage in cracking melon seed. The teeth sheath is V-shaped to match incisors, and sleeved onto the upper and the lower incisors. The teeth sheath has opened end inwards inclined for clamping the incisors, incisor clamps set symmetrically inside the opened end and incisor pads set symmetrically inside the sheath. All the incisor clamps and the incisor pads are made of flexible material for adhering inside the teeth sheath. During cracking melon seed, the teeth sheath is sleeved onto incisors for protection.