CN218356409U - Double-arm tooth root control accessory - Google Patents

Abstract

The utility model provides a double-arm tooth root control accessory, which comprises an accessory base, a traction hook and a traction wing. The traction hook is fixedly connected to the top surface of the accessory base in parallel and comprises an upper traction hook and a lower traction hook which are arranged in central symmetry; the traction wing is fixedly connected to the top surface of the base. The utility model provides a both arms root of tooth control annex can select different traction mode according to the orthodontic condition of tooth, can solve current stealthy ware of rescuring of no support groove and rescuring the problem that the in-process is difficult to control root of tooth removes, effectively improves and rescues efficiency and guarantees to correct the effect.

Description

Double-arm tooth root control accessory

Technical Field

The utility model relates to the technical field of orthodontic appliances, in particular to a double-arm tooth root control accessory.

Background

The bracket-free invisible correction technology is a new and developed digital high-tech precise technology in the field of orthodontic, and the technology does not need bracket bonding and steel wire ligation in the traditional correction, but perfectly integrates computer-aided diagnosis, big data analysis, personalized design, digital forming technology and the like with a novel diaphragm material to manufacture the invisible correction device matched with a patient. The invisible orthodontic appliance applies mild and lasting biological force to the teeth according to the biomechanics principle, so that the teeth are slowly moved to normal positions, and the teeth are arranged in order. The patient gradually changes the appliance diaphragms at different correction stages, and the orthodontics can be better realized.

The bracket-free invisible correction has better aesthetic property, comfort and flexibility, and is popular with teeth beautifying people. Due to its material characteristics, it is not effective in extending teeth and controlling tooth roots. In the existing invisible correction technology, attachments are generally used for auxiliary correction, but the traditional attachments still have no ideal solution to the above problems.

The existing tooth root control accessory is of a single-hook structure, such as a bonding type multipurpose traction hook provided by the existing patent CN209661832U, and comprises a bonding part, wherein a protrusion is arranged on the upper surface of the bonding part, a body part is arranged on one side of the protrusion, and a traction part is arranged at the end part of the body part. In use, according to the principle of moment = force arm (M = F arm), the existing single hook only has one side arm, the arm is short and cannot provide enough rotation moment, the root control moving function is not strong, and the correction period is long. Meanwhile, the traction hook in the scheme cannot be used for extending the teeth, and has certain limitation.

Based on the defects, the accessory can effectively control the tooth root to move in the invisible orthodontic treatment, is suitable for lengthening the teeth, improves the orthodontic efficiency and ensures the orthodontic effect.

SUMMERY OF THE UTILITY MODEL

The utility model provides a both arms root of tooth control annex can select different traction mode according to the orthodontic condition of tooth, solves current stealthy ware of rescuring in-process of supporting groove and is being difficult to control the problem that the root of tooth removed and elongated tooth to effectively improve and rescue efficiency and guarantee the correction effect.

In order to realize the technical purpose, the technical effect is achieved, and the utility model discloses a following technical scheme solves above-mentioned problem:

a double-arm tooth root control accessory comprises an accessory base, a traction hook and a traction wing. The traction hook is fixedly connected to the top surface of the accessory base in parallel and comprises an upper traction hook and a lower traction hook which are arranged in central symmetry; the traction wing is fixedly connected to the top surface of the base.

In the scheme, the bottom surfaces of the accessories are fixed on the buccal labial surfaces of the teeth through adhesives and resin, the upper and lower traction hooks are connected with the precise cutting traction openings on the two sides of the invisible orthodontic appliance through elastic traction devices such as rubber rings, and at the moment, the teeth are dragged by a pair of forces F which are equal in size and opposite in direction and are not on a straight line to rotate. The pair of forces F form a couple, and the couple arm d is the distance between the two forces, and the couple takes the center of the accessory base as the rotation center P to generate a couple moment M for rotating and moving the teeth. Compared with the traditional device, the device has the advantages that the traction force F can be artificially controlled (namely the traction strength of the elastic traction device is adjusted), and the force couple arm d is larger. According to the formula M = F × d, since F and d are both increased, M is increased, and the rotation efficiency is high. Meanwhile, the accessory base is provided with the traction wings to carry out vertical traction, thereby realizing the extension of teeth and solving the correction requirement of the patient with the open teeth and the closed teeth.

Furthermore, the upper traction hook and the lower traction hook adopt arc hooks parallel to the accessory base, and the diameter R of the hook body is 0.8-1.0 mm.

Furthermore, the symmetrical centers of the upper traction hook and the lower traction hook are positioned on the central axis of the accessory base.

Furthermore, the accessory base adopts a disc seat.

Furthermore, the traction hook formed by the upper traction hook and the lower traction hook can be integrally cast and molded by adopting a metal material.

Furthermore, the traction hook and the traction wing are welded and fixed on the base.

The utility model has the advantages and effects that:

1. can effectively overcome the problem that the existing bracket-free invisible appliance is difficult to efficiently control the tooth root to move in the correction process. The scheme sets up upper and lower towing hook to be the both arms structure, and upper and lower arm body is drawn to both sides by elastic traction device respectively, and two traction forces are each other for the couple, produce a revolving force couple distance M and carry out effective rotation to the tooth of slope, can realize effective accuse root.

2. Can realize vertical traction on teeth and overcome the problem of single applicable function of the traditional accessory. The surface of the accessory base is provided with a traction wing which is matched with the upper jaw device and the rubber ring, so that teeth needing to be controlled vertically are pulled, and the purpose of extending the teeth is achieved.

3. The control accessory of the utility model is not only suitable for invisible orthodontic devices, but also suitable for fixing orthodontic devices.

Drawings

FIG. 1 is a schematic structural view of a double-arm tooth root control accessory of the present invention;

FIG. 2 is a working schematic diagram of the root control movement of the present invention;

fig. 3 is a schematic diagram of the present invention for simultaneously performing rotational movement and vertical traction.

Drawing number identification: 1. the auxiliary part comprises an accessory base, 2 parts of a traction hook, 21 parts of an upper traction hook, 22 parts of a lower traction hook, 3 parts of a traction wing, 4 parts of a planting anchorage nail, 5 parts of an appliance diaphragm, 6 parts of a rubber ring.

Detailed Description

The technical solution in the embodiment of the present invention is clearly and completely described below with reference to the drawings in the embodiment of the present invention. The specific embodiments described herein are merely illustrative and are not intended to be limiting.

In the double-arm root control accessory of the present embodiment, as shown in fig. 1 and 2, the main body includes an accessory base 1, a pulling hook 2 and a pulling wing 3, the bottom surface of the accessory base 1 is fixed to the labial and buccal surfaces of orthodontic teeth by adhesive and resin, and the pulling hook 2 is welded in parallel to the top surface of the accessory base 1. The accessory base 1 is of a disc structure, and other structures with smooth corners can be adopted.

The towing hook 2 is composed of an upper towing hook 21 and a lower towing hook 22, the upper towing hook 21 and the lower towing hook 22 are distributed in a central symmetry mode, and the symmetry center is located on the central axis of the accessory base 1. The towing hook 2 can be integrally cast and molded by metal materials, the upper towing hook 21 and the lower towing hook 22 are circular-arc hooks with the diameter of 0.8-1.0 mm, and the plane of the circular-arc hook body is parallel to the accessory base 1.

The left side and the right side of the traction hook 2 are symmetrically provided with a pair of traction wings 3, the traction wings 3 are welded and fixed on the top surface of the accessory base 1, and the traction wings 3 are matched with the upper jaw device to provide vertical traction force for teeth. The maxillary device may employ a distraction spacer such as an implant anchorage pin 4, as shown in figure 3.

When the double-arm root control accessory of the embodiment is adopted:

as shown in fig. 2, in the rotational movement, first, an incision is made in the orthodontic crown/labial appliance film 5 to expose the crown, and the double-arm root control attachment is bonded to the crown of the orthodontic tooth. Then, precisely cutting openings on the appliance diaphragms 5 at the left side and the right side to arrange hanging positions of the rubber rings 6, wherein the openings at the two sides are respectively connected with an upper traction hook 21 and a lower traction hook 22 through the rubber rings 6, and the rubber rings 6 apply traction force to accessories.

Traction forces F1 and F2 applied by the two rubber rings 6 are a couple of force (a pair of parallel forces which are equal in magnitude, opposite in direction and not collinear) mutually, the center of the accessory base is a rotation center P, and the generated force couple distance M controls the rotation of the inclined teeth. Moment of couple = couple arm (M = F d), couple arm d is the distance between two forces, couple arm d is big, traction efficiency is high, can compensate the big shortcoming of stealthy unscrambler accuse root shift efficiency low.

As shown in fig. 3, when the rotation movement and the vertical control are required to be performed simultaneously, on the basis of the installation, a cut is made on the diaphragm 5 of the dental crown labial-facial appliance of the tooth corresponding to the tooth to be elongated in the longitudinal direction to expose the dental crown, and the lingual button 4 is adhesively fixed on the dental crown corresponding to the tooth to be elongated in the longitudinal direction. The rubber ring 6 is connected with the traction wing 3 and the lingual button 4 to obtain longitudinal tension F3 so as to achieve the effect of extending the teeth. The bracket-free invisible appliance hardly extends the teeth.

The embodiments of the present invention are described in detail with reference to the drawings, but the present invention is not limited to the described embodiments. Various changes, modifications, substitutions and alterations of these embodiments can be made without departing from the principles and spirit of the invention, and are still within the scope of the invention.

Claims (6)

1. A double-arm tooth root control accessory comprises an accessory base (1) and a traction hook (2), and is characterized in that: the traction hook (2) is fixedly connected to the top surface of the accessory base (1) in parallel and comprises an upper traction hook (21) and a lower traction hook (22) which are arranged in central symmetry;

the left side and the right side of the traction hook (2) are symmetrically provided with a pair of traction wings (3), and the traction wings (3) are fixedly connected to the top surface of the accessory base (1).

2. The dual arm root control accessory of claim 1, wherein: the upper traction hook (21) and the lower traction hook (22) adopt circular-arc hooks parallel to the accessory base (1), and the diameter of the hook body is 0.8-1.0 mm.

3. The dual arm root control attachment of claim 1, wherein: the symmetrical centers of the upper traction hook (21) and the lower traction hook (22) are positioned on the central axis of the accessory base (1).

4. The dual arm root control accessory of claim 1, wherein: the accessory base (1) adopts a disc base.

5. The dual arm root control attachment of claim 1, wherein: the traction hook (2) formed by the upper traction hook (21) and the lower traction hook (22) can be integrally cast and molded by adopting a metal material.

6. The dual arm root control accessory of claim 5, wherein: the traction hook (2) and the traction wing (3) are welded and fixed on the base (1).

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