CN104939933A - Upright device for removing mylodontes - Google Patents

Abstract

The invention discloses an upright device for removing mylodontes. The device is in a U-shaped curve form with unequal arms, and comprises a U-shaped bend, a short arm and a long arm, wherein the device is prepared from materials with resilience force. The upright device has the advantages that the device acts on a dental crown of mylodontes by virtue of the resilience force of a stainless steel wire or a beta-titanium-nickel wire through the elastic force of the U-shaped bend, generates backward and upward force, and vertically pushes mesio inclined mylodontes towards a distal and mesial part. By virtue of the device disclosed by the invention, the dental crown does not need to be cut open within a large range; the possibility of multiple operations is avoided; and the minimally invasive target is reached. The device is simple to fabricate, and is relatively easily accepted by patients; the chair-side time is shortened; and the operation procedure is simplified.

Description

A kind of distal movement of molar axial unit

Technical field

The present invention relates to orthodontic field, more particularly, relate to a kind of distal movement of molar axial unit.

Background technology

At orthodontic field, conventional vertical spring far moves and uprightly grinds one's teeth in sleep now, and this buccal tube of grinding one's teeth in sleep is inserted in its one end, under non-Afterburning condition, the other end is hook-shaped, is positioned at vestibule ditch place, when being fixed on main arch wire above, upper revolving force after can producing Tilted molar.1998, Shapira etc. once reported the mandibular second molar using the upright nearly middle loxosis impaction of vertical spring, but needed to bond buccal tube on the buccal surface of inclination tooth, and this kind of method adds the probability of surgical exposure buccal surface and the risk of infection.And device is near buccal mucosa, in the various functional movement in oral cavity, oppresses buccal mucosa, cause buccal mucosa ulcer or hypertrophy, increase patient's sense of discomfort.

Along with the extensive use of implant anchorage, be also reported in mandibular ramus place and implant plantation nail, directly traction is ground one's teeth in sleep upper mobile backward.And the use of implant anchorage device, increase expense, also increase the chance of wound and the misery of patient simultaneously.Over the course for the treatment of, normal with soft tissue hyperplasia mulching plant anchorage, cause afterburning difficulty or be difficult to clean due to patient's oral hygiene, peri-implantitis occurs.Treatment terminates, and also often needs second operation to take out plantation nail.

Clinician often can use U-shaped song when correction is performed the operation, and such as can install U song additional when apparatus for correcting makes, and conventional U-shaped song is equiarm; its objective is increase steel wire length; to increase elasticity, or increase the adjustability of steel wire, to apply orthodontic force more flexibly.U song can be stepped up as needed when closing little loose gap in such as correction, needing to expand gap and can open large U song.Conventional U bent adding, installs, as a part of attachment device of appliance.

Summary of the invention

Technical problem to be solved by this invention is, provides a kind of device simple, easy and simple to handle and the distal movement of molar axial unit of successful.

In order to solve the problems of the technologies described above, the invention provides a kind of distal movement of molar axial unit, it is characterized in that, described device is the U-shaped curved shape of unequal arm, comprises U-shaped curved, galianconism and long-armed, and described device is made up of the material with resilience force.

As a preferred version, described long-armed end is round blunt shape.

As a preferred version, described long-armed end is back bending structure, and back bending structure bends time ratio and is easier to, and also can realize the object the same with round blunt shape, namely prevents the long-armed stamp of U-shaped song to gingival mucosa during operation.

As a preferred version, described U-shaped right and wrong footpath is slightly less than the buccolingual diameter of grinding one's teeth in sleep that needs far move.

As a preferred version, described in there is resilience force material be stainless steel silk or β titanium-nickel wire.

The invention has the advantages that, this device is by the elastic force of U-shaped song, and the resilience force by stainless steel silk or β titanium-nickel wire acts on corona of grinding one's teeth in sleep, and produces to it power gone up backward, by the erect molar of mesial inclination and push to far away in.Applying this device without the need to cutting exposure corona on a large scale, avoiding the possibility of Repeated Operation, reaching the object of Wicresoft.This device makes simple, saves Chairtime, simplifies operating process, and patient is easier to accept.

Accompanying drawing explanation

Fig. 1 is an a kind of preferred embodiment of distal movement of molar axial unit.

Fig. 2 is another preferred embodiment of a kind of distal movement of molar axial unit using state figure in operation.

Fig. 3 is the case figure that this device result of use is described, wherein, A is for before treatment, and B is in treatment, and C is for after treatment.

Fig. 4 is comparing of uprightly grinding one's teeth in sleep with the vertical spring of routine of this device, and wherein, the time of bending refers to time Sectional arch being bent molding; Operating time is when being each further consultation, to the time required for Sectional arch reinforcing; Upright time is that tooth becomes the upright time by inclination.

Number in the figure is expressed as:

1---U-shaped curved; 2---galianconism; 3---long-armed; 31---round blunt shape; 32---back bending structure.

Detailed description of the invention

Below in conjunction with specific embodiment, set forth the present invention further.Material used in following embodiment, reagent etc., if no special instructions, all can obtain from commercial channels.Should be understood that these embodiments are only not used in for illustration of the present invention to limit the scope of the invention.

Embodiment 1. distal movement of molar axial unit and using method

As shown in Figure 1, distal movement of molar axial unit is the U-shaped curved shape of unequal arm, comprises U-shaped curved 1, and galianconism 2 and long-armed 3, described device is made up of the material with resilience force.Prevent the long-armed stamp of U-shaped song to gingival mucosa during operation, by long-armed tip designs for shown in round blunt shape 31 or back bending structure 32(Fig. 2).

This device is made up of the material with resilience force, such as stainless steel silk or β titanium-nickel wire, preferred β titanium-nickel wire.Utilize β titanium-nickel wire to have good elasticity, can produce lasting and moderate Orthodontic force, the advantages such as formability is good bend the U-shaped song of unequal arm.U-shaped bent diameter is advisable with the buccolingual diameter of grinding one's teeth in sleep being slightly less than needs and far moving.U-shaped bent galianconism stretch into need upright grind one's teeth in sleep with near in below the adjacent contact point of grinding one's teeth in sleep, long-armed ligation is on Anchorage molar.Bending square silk to the power producing and go up backward of grinding one's teeth in sleep, can far in mobile corona also uprightly grind one's teeth in sleep gradually.Only need long-armed for U-shaped song conjunction time afterburning to ligation after bending.In distraction procedure, exposing facing without the need to cutting, avoiding the possibility of Repeated Operation.

This traction apparatus enters owing to adjoining below contact from two teeth, is acted on the corona of grinding one's teeth in sleep needing middle movement upright or far away, produce to it power gone up backward by the resilience force of U-shaped song.As shown in Figure 2, in distraction procedure, afterburning simple, only need be folded to long-armed section conjunctions side, strengthen the angle of two-arm, can continue performance rear on revolving force.According to the relation of lever principle and moment and power, when tooth is main far to move, to rectificate for long-armed section; On the contrary, when moving based on vertical rotary, long-armed section then short.And apply this device without the need to cutting exposure corona, avoid the possibility of Repeated Operation, reach the object of Wicresoft.Make simple, save Chairtime, simplify operating process, patient is easier to accept, and reaches Wicresoft and efficient object.

Embodiment 2. distal movement of molar axial unit result of use

Object: observe the effect that this new device is uprightly ground one's teeth in sleep.

Materials and methods: classify according to Pell-Gregory ascending branch, select near in and the mandibular third molar 20 of meta inclination impaction is routine, be divided into new device group and conventional vertically upright group of spring at random, often organize each 10 examples, conventional vertically spring group is matched group, record two groups of bending of arch edgewise times, each further consultation is to the time of device reinforcing and tooth final upright required time.

Result: it is 1.5 minutes that new device on average bends the time, and matched group needs 7 minutes; Average operating time is 3.5 minutes, and matched group is 10 minutes; Time average of uprightly grinding one's teeth in sleep is 3 months, and matched group is 4.5 months.Time is all shorter than matched group, and has significant difference.Fig. 3 is the case figure of this device of explanation result of use, and wherein, A is for before treatment, and B is in treatment, and C is after treatment, upright successful.Fig. 4 is comparing of uprightly grinding one's teeth in sleep with the vertical spring of routine of this device.

Conclusion: this device is simple, the chair other operating time is short, and afterburning convenient, upright tooth efficiency is high.

The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.

Claims (5)

1. a kind of distal movement of molar axial unit, it is characterized in that, described device is the U-shaped curved shape of unequal arm, comprises U-shaped curved, galianconism and long-armed, and described device is made up of the material with resilience force.

2. a kind of distal movement of molar axial unit according to claim 1, is characterized in that, described long-armed end is round blunt shape.

3. a kind of distal movement of molar axial unit according to claim 1, is characterized in that, described long-armed end is back bending structure.

4. a kind of distal movement of molar axial unit according to claim 1, is characterized in that, described U-shaped right and wrong footpath is slightly less than the buccolingual diameter of grinding one's teeth in sleep that needs far move.

5. a kind of distal movement of molar axial unit according to claim 1, is characterized in that, described in there is resilience force material be stainless steel silk or β titanium-nickel wire.