CN116531126A - Device for integrally and remotely moving posterior dentition by lingual push rod - Google Patents

Abstract

The invention relates to a tooth correction device, in particular to a device for integrally and remotely moving a rear dentition by a lingual push rod, which comprises a pair of ring-shaped push rods respectively wrapping first molars at two sides of an oral cavity, a pair of cusp segment push rods respectively inserted and fixed with the ring-shaped push rods and adhered to the lingual sides of cuspids, and a connecting piece for connecting the ring-shaped push rods at two sides of the oral cavity; the cuspid section push rod comprises a push rod section which is fixedly connected with the cuspid bonding bottom plate; the push rod section is arranged on the tongue side, one end of the push rod section is fixedly inserted with the ring-type push rod, and the pointed tooth bonding bottom plate is fixed at the end of the other end of the push rod section; the cuspid bonding bottom plate is bonded to the cuspid lingual side. Compared with the prior art, the invention can meet the strength requirement of the molar tooth during the remote movement, can also meet the aesthetic requirement of the corrector, and has good dentition remote movement effect and correction effect.

Description

Device for integrally and remotely moving posterior dentition by lingual push rod

Technical Field

The invention relates to an orthodontic device, in particular to a device for integrally and remotely moving a rear dentition by a lingual push rod.

Background

With the development of economy and the progress of society, more and more people choose to receive orthodontic treatment for aesthetic or functional reasons. For patients with non-severe bone deformities and light to moderate crowding, moving the molars distally to obtain clearance is a common means of addressing the odontic process and improving the relationship of the molars. For adult patients, however, it is often desirable to use more aesthetically pleasing and comfortable appliances due to work and social demands. Orthodontic treatment using removable transparent appliances and lingual permanent correction has become a non-negligible need.

Although there are many traditional methods of remotely moving teeth in the clinic, there are various drawbacks: external force devices such as classical push-wear dental external arch devices, J hooks and the like only need to be worn at night, but need to rely on the excellent coordination degree of patients; an intraoral force device, such as a common Wobble corrector, is adhered to the maxillary mouth of a patient, is relatively hidden and attractive, has low requirements on compliance of the patient, but has the advantages that the anterior teeth are anchorage, premolars and incisor anchorage are easy to lose partially, meanwhile, because the anchorage is insufficient, the correction design needs to push one tooth independently, a group of teeth cannot move, the anterior teeth and the anterior teeth cannot be prevented from being reciprocated by lip inclination and force of mesial movement, in addition, when the molar teeth are pushed in place, the molar teeth are required to be anchorage for distal movement, the premolars are difficult to maintain, the treatment effect is difficult to maintain, the treatment time is long, time and labor are wasted, and the acceptance of the patient is low; and the fixed correction labial correction and lingual correction are carried out by matching with the implant anchorage technology to carry out the movement in the middle of the whole dentition, so that the complete dentition is required to be moved in the whole after being changed into a hard wire, the front teeth can not move back and forth, the treatment course is prolonged, and the risk of alveolar bone atrophy and tooth root absorption in the front tooth area is increased. In addition, the recent acceptance of removable transparent appliances by adult patients still requires sequential bruxism and premolars, and the above-mentioned core problems of low therapeutic efficiency and ineffective protection of the anterior anchorage are not solved, except for aesthetic appearance.

The whole posterior teeth are moved far and medium by taking the cuspids and the molar teeth as the teeth-assembling units, which are widely paid attention to in the foreign countries in the last ten years, the anterior teeth alignment and adduction space is obtained by utilizing the push rod to match with the micro-implant anchorage movement posterior teeth-assembling teeth, and a new thought is provided for pushing the molar teeth far and medium. The method avoids the risks of the correcting device, and the existing transparent polymer material is adhered to the tooth surface of the cuspid, so that adult patients with high aesthetic requirements are satisfied, but the strength of the polymer transparent plastic cannot be compared with that of metal. The attractive and firm design of the orthotic device is a major challenge to be solved and must not be ignored.

At present, the transparent push rod is used in a large amount clinically, and has three defects, namely: insufficient strength, and cannot meet the requirements of adult patients who need a large number of molar distal movements; and the following two are that: the bonding surface is not tight enough, only finished products are reported to be sold abroad at present, the bonding surface is not tight enough, the force requirement for pushing the group teeth to move far is larger, about 8oz, the requirement on the coincidence degree of the bonding surface is higher, in addition, when the teeth move, the original occlusion is changed, occlusion interference points exist, and the bonding performance is also a great test; less than three: although the time for moving the posterior dentition in the middle is greatly shortened, the total treatment period is not effectively shortened, the orthodontic appliance is removed after the molar teeth are required to be moved in place, and then the fixed correction is carried out, so that many patients who complain of the unaesthetic anterior teeth probably face the situation that the anterior teeth are scattered in gaps for a certain time in the process of gradually moving the posterior teeth, and the demand of the beautiful anterior teeth is not solved.

Disclosure of Invention

The invention aims to solve at least one of the problems and provide a device for integrally moving the rear dentition by a lingual push rod, which can not only meet the strength requirement during molar distal movement, but also meet the attractive demand of a person who corrects the dentition, and has good dentition distal movement effect and correction effect.

The aim of the invention is achieved by the following technical scheme:

the device for integrally and remotely moving the posterior dentition of the lingual push rod comprises a pair of ring-shaped push rods which respectively wrap the first molars at the two sides of the oral cavity, a pair of cusp segment push rods which are respectively inserted and fixed with the ring-shaped push rods and are adhered to the lingual sides of the cusps, and a connecting piece which is connected with the ring-shaped push rods at the two sides of the oral cavity;

the cuspid section push rod comprises a push rod section which is fixedly connected with the cuspid bonding bottom plate; the push rod section is arranged on the tongue side, one end of the push rod section is fixedly inserted with the ring-type push rod, and the pointed tooth bonding bottom plate is fixed at the end of the other end of the push rod section; the cuspid bonding bottom plate is bonded to the cuspid lingual side.

Preferably, the band-type push rod is fixedly provided with a buccal tube on the buccal side of the first molar. The first molar buccal preformed buccal tube can simultaneously perform alignment and vertical control of anterior teeth, and can perform early light force control for patients with vertical alveolar bone hypersecretion. Effectively solves the demand of patients on early improvement of front tooth beauty and shortens the course of treatment.

Preferably, the buccal tube is provided with an inclination angle of 10-40 degrees. Preferably the buccal tube is at an angle of 30 ° to the horizontal.

Preferably, the ring-type push rod is fixedly provided with a support on the side surface of the first molar facing the second molar, and the support is lapped on the surface of the second molar. The setting of the support can realize the synchronous pressing-in of the second molar during the depression control of the first molar.

Preferably, the belt-type push rod is made of 3D printing metal material and is manufactured through 3D printing. The 3D printing can be designed in a personalized mode according to the shapes and the sizes of different first molar teeth, the use of different people is more met, and the wearing comfort level and the correction accuracy and efficiency are improved.

Preferably, the push rod section is made of ice crystal material, namely sapphire material which is conventionally used in oral correction.

The cuspid bonding bottom plate is subjected to lingual muscle with personalized thickness according to the occlusal depth and growth morphology of a patient.

Preferably, the device further comprises a flat guide, and the flat guide is fixedly attached to the lingual side of the cuspid. Flat open bite may be designed for deep bite as well as non-vertical growth type patients.

Preferably, the device further comprises a bracket, and the bracket is fixedly attached to the cheek side of the cuspid. Bracket bonding may be used early in the corrective treatment to shorten the course of treatment. The brackets may be ceramic brackets or ice crystal brackets.

Preferably, the device further comprises an implant anchorage, wherein the implant anchorage is fixed at the impedance center of the cheek side of the first molar; the planting anchorage is connected with the bracket through a rubber chain or a tension spring. The tooth group dentition of the rear tooth is moved in a far-middle way through the pushing rod from the lingual cuspids to the molar teeth by applying force to the cuspid bracket through the rubber chain or the nickel-titanium tension spring.

Preferably, the planting anchorage is a planting nail.

Preferably, the connecting piece is a palate bar or a spiral bow expander. The ring-type push rod and the cuspid segment push rod are inserted to form a bolt way type combined whole, meanwhile, the ring-type push rod on two sides of the oral cavity is connected by the lingual connecting piece to form three-dimensional control on molar teeth, and the force of depressing and moving far is generated by matching with the swallowing activity of lingual muscles. When the connecting piece is a spiral expander, the width of the upper and lower jaw dental arches can be further adjusted, and the expression of the growth of the upper and lower jaws is facilitated.

Compared with the prior art, the invention has the following beneficial effects:

1. the push rod part of the device adopts a two-section design, the wrapped tooth grinding part is made of metal, and the push rod section from tooth grinding to cuspid is made of transparent sapphire material, so that the strength requirement of tooth grinding during remote movement can be met, and the attractive demand of a correcting person can be met. The device is connected and extended from the lingual side, so that the secrecy of the device can be further improved. The two push rods are connected in an inserting mode, so that good fixing performance can be provided in the wearing process.

2. The belt ring type push rod wrapping the molar teeth in the device is manufactured by adopting a 3D printing method, can be better matched with the shape of the first molar teeth of an appliance, improves wearing comfort, enables the contact surfaces to be more identical or even completely identical, and can provide better remote movement effect and further achieve better correction effect.

3. The device can generate the force of depression and remote movement through the swallowing activity of the person, and can perform three-dimensional control on the first molar, so that the force application is mild and stable; and the device can be further matched with a flat guide, a bracket, a planting anchorage and a palate bar/spiral bow expander for use together, can simultaneously correct various conditions and provide better correction effect, and shortens the treatment course. In the correction process, the rear dentition from the first molar to the cuspid can be integrally moved far through the arrangement of the push rod section, the synchronous depression of the second molar can be carried out through the arrangement of the support, and the synchronous movement and correction of a plurality of teeth and dentition can be carried out, so that the correction time can be greatly shortened.

Drawings

FIG. 1 is a schematic view showing the structure of the device of example 1 as a whole on a dentition model;

FIG. 2 is a schematic view showing the structure of the device of example 2 as a whole on a dentition model;

FIG. 3 is a schematic top view of the present apparatus;

FIG. 4 is a schematic perspective view of the device;

FIG. 5 is a schematic view of the structure of the belt-type push rod in the device;

in the figure: 1-a push rod with a ring; 11-buccal tube; 12-supporting; 2-a cuspid section push rod; 21-a pushrod segment; 22-the cuspid bonding bottom plate; 3-connector.

Detailed Description

The invention will now be described in detail with reference to the drawings and specific examples. It should be noted that the hatched portions in the figures are marks for tooth molds to which the apparatus of the following embodiments can be assembled.

Example 1

The device for integrally and remotely moving the posterior dentition of the lingual push rod comprises a pair of belt-ring push rods 1 which respectively wrap the first molars at two sides of the oral cavity, a pair of cuspid segment push rods 2 which are respectively inserted and fixed with the belt-ring push rods 1 and are adhered to the lingual sides of cuspids, and a connecting piece 3 which is connected with the belt-ring push rods 1 at two sides of the oral cavity, as shown in figures 1 and 3-5;

the cuspid section push rod 2 comprises a push rod section 21 which is fixedly connected with a cuspid bonding bottom plate 22; the push rod section 21 is arranged on the lingual side, one end of the push rod section is fixedly inserted with the ring-type push rod 1, and the other end of the push rod section is fixedly provided with a cuspid bonding bottom plate 22; the cuspid bonding base 22 is bonded to the lingual side of the cuspids.

More specifically, in the present embodiment:

the device is obtained through three-dimensional scanning, modeling and 3D printing, and can form close fit when being worn on the dentition of a patient.

The first molars on the left and right sides of the oral cavity are respectively sleeved with a ring-type push rod 1, and as shown in fig. 1, the two ring-type push rods 1 are connected through a connecting piece 3 (palate bar). The ring-type push rod 1 completely wraps the first molar, and a buccal tube 11 is arranged on the buccal side of the first molar, and a support 12 is arranged on the side facing the second molar. 3-5, the buccal tube 11 is downward at an inclined angle of 30 degrees, and an opening for inserting the tail end of the correction arch wire is formed in the center of the buccal tube for fixing the correction arch wire so as to synchronously perform alignment and vertical control of front teeth, and early light force control can be performed on a person who has perpendicularly developed an alveolar bone, so that the need of a patient for improving the beauty of the front teeth early is effectively solved, and the treatment course is shortened; the lugs 12, as shown in the figures, naturally overlap the surface of the second molar after being mounted on the dentition, and the vertical forces applied to the first molar can be simultaneously transmitted to the second molar by the lugs 12 to achieve synchronous depression of the second molar. The belt ring type push rod 1 is made of conventional 3D printing metal materials in a 3D printing mode, and can further be attached to the tooth shape of the person to be corrected on the basis of being capable of keeping strength due to the fact that 3D printing is adopted. The transverse jaw rod can be manufactured by adopting integral molding with the belt-type push rod 1 according to materials, and can also be fixed with the belt-type push rod 1 at two ends by adopting conventional fixing modes such as inserting connection, clamping connection and the like. The overall shape of the palate-traversing rod is attached to the upper wall of the oral cavity and is curved, as shown in fig. 4, a baffle is arranged at the middle position of the palate-traversing rod, and under the normal closed state or swallowing state, the tongue body naturally props against the baffle and exerts a vertical control force to the first molar and the palate through the baffle so as to realize the three-dimensional control of the first molar. Generally, for better active vertical control, the palate bar is more than 4mm from the palate mucosa after installation, and can generate enough force for depressing and moving away by being matched with the swallowing activity of lingual muscles. The physiological swallowing force is adopted for correction, so that the effect of low-pressure molar teeth can be achieved under the condition of simple correction without arranging an implant anchorage.

As shown in fig. 1 and 3, one end of the cuspid section push rod 2 is fixed with the band type push rod 1 in a plugging or bonding mode, and extends from the lingual side of the first molar to the lingual side of the cuspids from the lingual side of the first bicuspid and the second bicuspid, and the other end is bonded and fixed with the surface of the cuspid. The cuspid section push rod 2 comprises a push rod section 21 and a cuspid bonding bottom plate 22, wherein one end of the push rod section 21 of the embodiment is fixedly inserted into the belt-type push rod 1, and the cuspid bonding bottom plate 22 is integrally formed at the end position of the other end; the cuspid bonding base 22 is bonded to the lingual surface of the cuspids. The push rod section 21 is made of a sapphire material commonly used in the dental field, has good strength and is transparent, and can meet the strength requirement in the correction process and the invisible and attractive requirements. The thickness, size and specific shape of the cuspid bonding base 22 should be individually designed according to the depth of occlusion and the growth morphology of the appliance, thereby providing a better appliance.

The correction effect and correction efficiency are further improved in an auxiliary mode, the leveling guide can be further fixedly arranged on the lingual surface of the cuspids according to requirements, and the leveling guide can help to open the deep occlusion and the non-vertical growth type correction person, so that the correction effect is improved. Also, the bracket can be bonded on the cheek side surface of the cusp, and can be a conventional ceramic bracket or ice crystal bracket; so as to quicken the correction efficiency and shorten the correction course. Still further, can plant fixed planting anchorage in the buccal side impedance central point department of first molar (the root bifurcation department of first molar), can select the planting nail of using commonly used to plant to adopt rubber chain or nickel titanium extension spring to link to each other planting anchorage and the bracket on cusp surface, and then can apply force in cusp bracket through rubber chain or nickel titanium extension spring, through lingual cusp to the push rod of molar realize the long-range back tooth group dentition that removes. In summary, the device can be further used together with a plurality of different treatment modes to form the effect of multiple combination and common correction.

Example 2

The present embodiment is basically the same as embodiment 1, except that the connection member 3 in this embodiment is a screw-type arch expander, as shown in fig. 2, and the rest can refer to embodiment 1. The spiral arch expander is usually used for teenagers with insufficient transverse width, and the width of the upper and lower dental arches can be effectively adjusted through the cooperation of the spiral arch expander, so that the expression of the jaw growth is facilitated.

The previous description of the embodiments is provided to facilitate a person of ordinary skill in the art in order to make and use the present invention. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above-described embodiments, and those skilled in the art, based on the present disclosure, should make improvements and modifications without departing from the scope of the present invention.

Claims (10)

1. The device for integrally and remotely moving the posterior dentition of the lingual push rod is characterized by comprising a pair of belt-ring push rods (1) which respectively wrap the first molars at two sides of the oral cavity, a pair of cuspid segment push rods (2) which are respectively inserted and fixed with the belt-ring push rods (1) and are adhered to the lingual sides of the cuspids, and a connecting piece (3) which is connected with the belt-ring push rods (1) at two sides of the oral cavity;

the cuspid section push rod (2) comprises a push rod section (21) which is fixedly connected with the cuspid section push rod and a cuspid bonding bottom plate (22); the push rod section (21) is arranged on the lingual side, one end of the push rod section is fixedly inserted with the belt-type push rod (1), and the tip of the other end of the push rod section is fixedly provided with a cuspid bonding bottom plate (22); the cuspid bonding bottom plate (22) is bonded to the lingual side of the cuspids.

2. The lingual push rod integral distancing posterior dentition device according to claim 1, wherein the band-type push rod (1) is fixedly provided with a buccal tube (11) on the buccal side of the first molar.

3. A lingual push rod integrated posterior dentition distancing device according to claim 2 wherein said buccal tube (11) is provided with an inclination angle of 10-40 °.

4. The lingual push rod integral posterior dentition distancing device according to claim 1, wherein the looped push rod (1) is fixedly provided with a bracket (12) on the side of the first molar facing the second molar, said bracket (12) overlapping the surface of the second molar.

5. The device for integrally moving the posterior dentition of the lingual push rod according to claim 1, wherein the annular push rod (1) is made of 3D printed metal material by 3D printing.

6. A lingual push rod integral posterior dentition distancing device according to claim 1 wherein said push rod segment (21) is ice crystal material.

7. The lingual push rod integrated posterior dentition removal device of claim 1 further comprising a flat guide fixedly attached to the lingual side of the cusp.

8. The lingual push rod integrated posterior dentition removal device of claim 1 further comprising a bracket fixedly attached to the cheek side.

9. The lingual push rod integrated posterior dentition removal device of claim 8, further comprising an implant anchorage, said implant anchorage being fixed to the center of impedance of the buccal side of the first molar; the planting anchorage is connected with the bracket through a rubber chain or a tension spring.

10. A lingual push rod integrated posterior dentition distancing device according to claim 1 wherein said connector (3) is a palate bar or a screw expander.