CN219147977U - Preset accessory for bracket-free invisible appliance - Google Patents

Abstract

The utility model discloses a preset accessory of a bracket-free invisible appliance, which relates to the technical field of orthodontic and bracket-free invisible appliance. The accessory and the invisible appliance are in a 'plug-in card' relationship, so that the edge position of the invisible appliance is limited, the deformation and the fitting degree of the invisible appliance are controllable, the traditional clamping type contact relationship between the invisible appliance and the dental crown and accessory is changed, and the control precision of the invisible appliance on tooth torque, torsion and the like is improved.

Description

Preset accessory for bracket-free invisible appliance

Technical Field

The utility model relates to the technical field of orthodontic and bracket-free invisible correction, in particular to a preset accessory of a bracket-free invisible correction device.

Background

Compared with the traditional fixed correction, the bracket-free invisible correction device has the advantages of being more comfortable to wear, having better aesthetic effect, being easier to clean and sanitary, being more and more favored by young people, and replacing the fixed correction system to a certain extent. However, the disadvantages of invisible correction are also quite obvious, and they are quite dependent on patient cooperation, and the properties of the membrane material cannot meet the requirement of accurate control of teeth. Orthodontists have long desired accurate and controlled orthodontic procedures, but the above-described drawbacks of invisible correction make it difficult to achieve this. In view of this situation, many studies have been conducted in recent years from the aspects of improvement of the correction design, over-correction design, optimization of the accessories, and the like, and progress has been made in which improvement of the accessories is one of the research hotspots. However, the average accuracy of the stealth appliance control for all teeth is 50%, demonstrating that further improvement is still needed.

A problem in a typical invisible appliance is that when the non-bracket invisible appliance is fully retracted into the anterior maxillary tooth, the anterior maxillary tooth is both represented by lingual tilt movement and extension, which is represented by the "roller coaster effect". Efficient torque expression is one of the preconditions for achieving optimal therapeutic effects. For traditional fixed correction, the expression of the torque depends on the small clearance angle between the archwire and the bracket and the preset torsion of the archwire, the quality of the archwire, the material of the bracket, the spacing between the brackets, the inclination degree of teeth and the like can influence the expression effect of the torque, and for invisible correction, if the torque movement is required to be realized, the bracket-free invisible correction device is required to form an effective force pair at the dental crown, namely the reverse force at the position of the cutting edge of the dental crown near the gingival edge. However, the thermoplastic molding method of the invisible appliance determines that ≡square material is thicker than neck material, after the plastic is stretched, the edge material of the appliance is thinner, the appliance is more easily deformed when teeth are moved in parallel, and the appliance is difficult to apply force in the area, especially in the tooth torque movement process, the appliance tends to lift upwards, so that the incisor edge of the appliance is not tightly adhered to the teeth, and cannot generate effective couple, thereby reducing the tooth torque movement efficiency, failing to generate enough correction force near the gingival margin, leading to uncontrolled oblique movement of the teeth, and seriously leading to derailment. Based on the design, the preset accessory of the bracket-free invisible appliance changes the traditional contact relation between the invisible appliance and the dental crown and accessory, and improves the control precision of the appliance on tooth torque, torsion and the like.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a preset accessory of a bracket-free invisible appliance, which is an auxiliary device for assisting the application of an orthodontic force to teeth and realizing accurate control of tooth movement, and can be divided into a reinforced retention type, an auxiliary movement type and an auxiliary function type according to purposes. On one hand, the design size of the accessory is closely related to the correction efficiency, and the insufficient retention force of the accessory can cause insufficient local anchorage of the invisible appliance, so that the correction target is difficult to realize; on the other hand, the excessive design or the large size of the accessories can cause the excessive retention force, so that the appliance is difficult to be taken off and worn, and the situations of deformation, falling-off of the accessories and the like are caused. The appearance of the accessory commonly used in clinic at present is smooth plane or convex, the bonding force between the accessory and the appliance membrane is smaller, so that the tooth correction is mainly performed by tilting movement, and the parallel movement, torsion, elevation and front tooth torque control are difficult, thereby resulting in lower overall tooth correction efficiency. For anterior tooth torque control, the common attachment design is currently a "torque ridge" (torque ridge is a longitudinal ridge on the axial surface extending from the tip of the tooth tip toward the tooth neck, the axial ridge of the labial surface of the cusp is called labial axial ridge, the axial ridge of the buccal surface of the posterior tooth is called buccal axial ridge, the axial ridges of the cusp and lingual surface of the posterior tooth are called lingual axial ridge), and torque ridges are added to the appliance of labial gingival margin and lingual incisor margin to form a pair of couples to move the tooth root to the palate side, however, when the upper incisor torque design is greater than 10 degrees, the actual torque expression rate of the invisible correction reaches 51.5% when the torque ridge is used, which is higher than the expression rate of 41.9% of the oval attachment, but still lower. The problem of insufficient tooth control force of the conventional invisible appliance is that a better clamping can not be formed at the positions of the dental crown and the accessory due to softer materials, for example, the appliance is deformed under the action of stress aiming at the parallel movement of teeth, so that the fitting degree of the appliance is poor, the due couple on the dental crown is not formed or insufficient, the final tooth tilting movement is caused, all the improvement on the accessory of the appliance is performed on the basis of the contact of the sliding contact relation of the appliance, the dental crown and the accessory, and the improvement result is very limited before the material of the appliance is not obviously improved. Unlike available accessories, the accessory is adhered to the labial or lingual surface of the dental crown via guide plate and the accessory is in 'plug-in' relation to the invisible appliance. When the invisible appliance is worn, the edge of the invisible appliance is inserted into the groove of the accessory, so that the edge position of the invisible appliance is limited, the deformation and the fitting degree of the invisible appliance are controllable, the traditional clamping type contact relation between the invisible appliance and the dental crown and accessory is changed, and the control precision of the invisible appliance on tooth torque, torsion and the like is improved.

The aim of the utility model is realized by the following technical scheme: the utility model provides a no support groove stealthy appliance presets annex, includes annex and stealthy appliance, the upper half of annex is semi-circular or semi-circular, the annex includes surface and bonding face, bonding face and tooth bonding, the surface is provided with the recess, stealthy appliance suit is on the tooth surface, stealthy appliance's one end is provided with the lingual connecting block with recess matched with, lingual connecting block embedding recess is inside.

Preferably, the attachment comprises a lingual attachment and a labial attachment, the other end of the invisible appliance is provided with a labial connection block matched with the groove, and the lingual connection block and the labial connection block are respectively embedded into the grooves of the lingual attachment and the labial attachment, so that the invisible appliance can be fixed conveniently and prevented from falling down.

Further, the attachment is adhered to the teeth by the guide plate, the edge of the guide plate is a hot-pressed film holder of the initial dentition, the edges of the guide plate are respectively inserted into grooves of the lingual attachment and the labial attachment until the guide plate is tightly inserted with the attachment, then the guide plate is sleeved with the teeth, the lingual attachment and the labial attachment are respectively adhered to the surfaces of the crowns (the lingual surfaces of the crowns and the labial surfaces of the crowns) by the resin, and then the guide plate is removed, so that the attachment is adhered. The hot pressing film retainer has the advantages of durability, strong elasticity, easy cleaning and low price.

Further, the invisible appliance is closely attached to the surface of the teeth, and accurate expression of the appliance design is optimized.

Preferably, the accessory is made of metal or ceramic materials, so that the abrasion of the accessory is reduced, and the accurate expression of the correction design is improved.

The beneficial effects of the utility model are as follows:

1. the accessory and the invisible appliance are in a 'plug-in card' relationship, so that the edge position of the invisible appliance is limited, the deformation and the fitting degree of the invisible appliance are controllable, the traditional contact relationship between the invisible appliance and the dental crown and the accessory is changed, and the control precision of the invisible appliance on tooth torque, torsion and the like is improved.

2. The lingual accessory and the labial accessory of the utility model have the upper half part similar to a semicircle or a semicircle, can better fit teeth, and are made of metal or ceramic materials at the same time, so that the use abrasion of the accessories is reduced, and the accurate expression of correction design is improved.

Drawings

FIG. 1 is a schematic view of the structure of an accessory, tooth and invisible appliance of the present utility model;

FIG. 2 is a schematic view of the lingual attachment, labial attachment, tooth and hidden appliance of the utility model;

in the figure: 1-lingual attachment, 2-groove, 3-invisible appliance, 4-labial attachment.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model is further described with reference to the drawings and specific examples.

As shown in fig. 1, the preset accessory of the bracket-free invisible appliance comprises an accessory and an invisible appliance 3, wherein the upper half part of the accessory is in a semicircular shape or a semicircular shape, the diameter of the upper half part of the accessory is 4mm, the accessory comprises an outer surface and an adhesive surface, the adhesive surface is adhered to teeth, the outer surface is provided with a groove 2, the opening of the groove 2 faces the square or forms a certain inclination angle with the square (the position of the tooth occlusion), the groove 2 is 1.8mm deep and 1mm wide, the angulation of the groove 2 and the long axes of other teeth can be adjusted according to different needs, the invisible appliance 3 is sleeved on the surface of the teeth, one end of the invisible appliance 3 is provided with a lingual connecting block matched with the groove 2, the lingual connecting block is embedded into the groove 2, the invisible appliance 3 is manufactured by adopting a 3D printing technology or a male die is manufactured by a hot-press film forming technology, and the invisible appliance 3 and the accessory is in a 'plug-in' relationship. The accessory is adhered firstly, then the invisible appliance 3 is worn, the lingual connecting block of the invisible appliance 3 is inserted into the groove 2 of the accessory and pressed and clamped, so that the edge position of the invisible appliance 3 is limited, the invisible appliance 3 is completely adhered to the edge of the labial lingual surface, and the labial surface and lingual surface of the anterior teeth are wrapped, so that the deformation and the fitting degree of the invisible appliance 3 are controllable, the traditional contact relation between the invisible appliance 3 and the dental crown and the accessory is changed, and the control precision of the invisible appliance 3 on tooth torque, torsion and the like is improved.

As shown in fig. 2, the attachments include a lingual attachment 1 and a labial attachment 4, and the other end of the invisible appliance 3 is provided with a labial connection block matched with the groove 2, and the lingual connection block and the labial connection block are respectively embedded into the grooves 2 of the lingual attachment 1 and the labial attachment 4. The lingual accessory 1 and the labial accessory 4 are bonded firstly, then the invisible appliance 3 is worn, and a lingual connecting block and a labial connecting block of the invisible appliance 3 are respectively inserted into the grooves 2 of the lingual accessory 1 and the labial accessory 4 and pressed and clamped, so that the edge position of the invisible appliance 3 is limited.

The lingual attachment 1 is bonded to the inner side of the tooth by a resin and the labial attachment 4 is bonded to the outer side of the tooth by a resin. The lingual accessory 1 and the labial accessory 4 are bonded by a guide plate, the guide plate is a hot-pressed film retainer of an initial dentition, the edges of the guide plate are respectively inserted into the grooves 2 of the lingual accessory 1 and the labial accessory 4 until the guide plate is tightly inserted with the accessories, then the guide plate is sleeved with teeth, the lingual accessory 1 and the labial accessory 4 are respectively bonded to the inner side and the outer side of the teeth (namely, the surfaces of crowns, namely, the lingual surfaces of crowns and the labial surfaces of crowns) by a resin material, and then the guide plate is removed, so that the attachment bonding is completed. Meanwhile, the lingual accessory 1 and the labial accessory 4 can be manufactured according to the surface morphology of most people or personalized by taking the model.

The invisible appliance 3 is closely attached to the surface of the teeth, so that the accurate expression of the correction design is optimized.

Aiming at the abrasion problem of the accessory in clinical use, the accessory is made of metal or ceramic materials.

The foregoing is merely a preferred embodiment of the utility model, and it is to be understood that the utility model is not limited to the form disclosed herein but is not to be construed as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, either as taught or as a matter of routine skill or knowledge in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the utility model are intended to be within the scope of the appended claims.

Claims (6)

1. A bracket-free invisible appliance preset accessory which is characterized in that: the multifunctional tooth appliance comprises an accessory and an invisible appliance (3), wherein the upper half part of the accessory is semi-circular or semi-circular, the accessory comprises an outer surface and an adhesive surface, the adhesive surface is adhered to teeth, a groove (2) is formed in the outer surface, the invisible appliance (3) is sleeved on the surface of the teeth, one end of the invisible appliance (3) is provided with a lingual connecting block matched with the groove (2), and the lingual connecting block is embedded in the groove (2).

2. The bracket-less concealed appliance pre-attachment of claim 1 wherein: the accessory comprises a lingual accessory (1) and a labial accessory (4), wherein a labial connecting block matched with the groove (2) is arranged at the other end of the invisible appliance (3), and the lingual connecting block and the labial connecting block are respectively embedded into the groove (2) of the lingual accessory (1) and the labial accessory (4).

3. The bracket-less concealed appliance pre-attachment of claim 2 wherein: the lingual accessory (1) is bonded to the inner side of the tooth by a resin, and the labial accessory (4) is bonded to the outer side of the tooth by a resin.

4. A preset accessory for a bracket-less invisible appliance according to claim 1 or 3, wherein: the invisible appliance (3) is closely attached to the surface of the teeth.

5. The bracket-less concealed appliance pre-attachment of claim 1 wherein: the accessory is made of metal materials.

6. The bracket-less concealed appliance pre-attachment of claim 1 wherein: the accessory is made of ceramic materials.

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