CN215130506U - Mouth external accessory and bracket-free invisible appliance with same - Google Patents

Abstract

The utility model provides an external accessory, which comprises a bag-shaped structure and a reinforcing block, wherein an accommodating cavity is arranged in the bag-shaped structure, and the accommodating cavity penetrates through one side of the bag-shaped structure to form a bag opening; the reinforcing block is detachably spliced together with the accommodating cavity through the bag opening. When the mouth external accessory is used, the bag-shaped structure can be fixedly adhered to the buccal side of the invisible orthodontic braces, the reinforcing block is inserted into the bag-shaped structure and is used for being connected with the orthodontic device, and the orthodontic devices such as the mouth external arch and the like are combined with the invisible orthodontic braces to achieve traction. Meanwhile, the mode of splicing the reinforcing block with the bag-shaped structure is adopted, so that the correction device is convenient to take and wear, and the use is more convenient. The utility model also provides a bracket-free invisible appliance with the external accessory.

Description

Mouth external accessory and bracket-free invisible appliance with same

Technical Field

The utility model relates to a tooth correction device, in particular to an extraoral accessory and a bracket-free invisible correction device with the extraoral accessory.

Background

Compared with the traditional fixed correction technology, the bracket-free invisible correction technology has the advantages that the correction device is formed by processing medical resin films, and correction devices such as belt rings, brackets, arch wires and the like for fixing the correction device are omitted, so that the bracket-free invisible correction technology is called as a bracket-free technology; the orthodontic appliance processed by the transparent resin film is worn in the mouth and is not easy to be discovered, so the orthodontic appliance is called as invisible, the bracket-free invisible orthodontic appliance achieves the aim of orthodontic tooth through continuous small-range tooth movement, and compared with the traditional orthodontic appliance, the bracket-free invisible orthodontic appliance has the advantages of attractive appearance, comfort, contribution to oral hygiene maintenance and the like. However, due to the limitation of the forming process of the bracket-free invisible orthodontic appliance, it is difficult to directly introduce traction into the bracket-free invisible orthodontic system, and organically combine orthodontic devices such as an extraoral arch and the like with the bracket-free invisible orthodontic appliance becomes a difficulty in invisible orthodontic treatment.

Disclosure of Invention

The utility model discloses aim at solving one of the technical problem that proposes in the above-mentioned background art at least, provide an outdoor annex, it can be with traction force device and stealthy correction tooth cover combination realization traction together.

In order to achieve the above purpose, the utility model adopts the technical proposal that:

an external accessory comprises a bag-shaped structure and a reinforcing block, wherein an accommodating cavity is arranged in the bag-shaped structure and penetrates through one side of the bag-shaped structure to form a bag opening; the reinforcing block is detachably spliced together with the accommodating cavity through the bag opening.

Further, the bag-shaped structure and the reinforcing block are both made of resin.

Furthermore, the hole wall which encloses the accommodating cavity is provided with a first inclined part so that the cross-sectional area of the accommodating cavity is gradually reduced towards the direction away from the bag opening; the reinforcing block has a second inclined portion capable of being in parallel contact with the first inclined portion.

Further, the bag-shaped structure is further provided with a avoiding hole in a penetrating mode, the avoiding hole is formed in one end, opposite to the bag opening, of the bag-shaped structure in a penetrating mode, the avoiding hole is communicated with the accommodating cavity, one end of the reinforcing block is connected with a connecting rod with external threads, and the connecting rod penetrates through the avoiding hole corresponding to the bag-shaped structure.

Furthermore, the bag-shaped structure is a hollow quadrangular structure and comprises two bottom plates, an end plate and two opposite inclined plates which are oppositely arranged in parallel, the bottom plates are in an isosceles trapezoid shape, the end plates and the inclined plates are both rectangular, the end plates are connected to the upper bottom edge of the bottom plates, the two inclined plates are obliquely arranged and respectively connected to two inclined edges of the bottom plates, the end plates and the inclined plates jointly enclose the accommodating cavity, and one end of the bottom plate, which is far away from the end plates, and one end of the inclined plates, which is far away from the end plates, jointly enclose the bag opening; the avoiding hole is communicated with the end plate;

the boss is for the four prismatic structures with bag structure grafting complex, bottom surface including two parallel relative settings, two parallel relative terminal surfaces and two relative inclined planes, the bottom surface is isosceles trapezoid shape, terminal surface and inclined plane all are the rectangle, and wherein a terminal surface is connected in the lower base department of bottom surface, another terminal surface is connected in the last base department of bottom surface, two inclined planes slope sets up and connects respectively in two hypotenuses departments of bottom surface, the one end of connecting rod is pre-buried in the less one end of boss cross section, the boss is pegged graft when acceping the chamber, the less terminal surface of boss cross section can offset with the end plate inner wall, two inclined planes can respectively with the inner wall parallel contact of two swash plates.

Furthermore, the reinforcing block comprises a body and a buffer part which are connected with each other, the body is made of hard resin, the buffer part is made of soft lining resin, the buffer part is positioned at one end of the reinforcing block inserted in the accommodating cavity, and the buffer part can elastically abut against the bag-shaped structure.

The utility model also provides a ware is rescued to no support groove stealth, including stealthy braces of rescuring and the outer annex of mouth, the outer annex of mouth includes bag-shaped structure and boss, bag-shaped structure glues in stealthy buccal side of the braces of rescuring admittedly, be equipped with the accepting chamber in the bag-shaped structure, the accepting chamber link up one side of bag-shaped structure so as to form the sack; the reinforcing block is detachably spliced together with the accommodating cavity through the bag opening.

Furthermore, the buccal side and the lingual side of the first molar area of the invisible orthodontic braces are both provided with belt-shaped retention vacuoles.

Furthermore, the tongue side of the double-cuspid tooth area of the invisible orthodontic braces is provided with a double-cuspid tooth fixing vacuole.

Further, the length of the bag-shaped structure can cover 2-3 tooth areas of the invisible orthodontic braces.

Due to the adoption of the technical scheme, the utility model discloses following beneficial effect has:

above-mentioned external orifice annex, during the use, can glue the bag shape structure admittedly in the buccal side of stealthy correction facing, the boss is pegged graft in bag shape structure and is used for linking to each other with correcting the device, can correct the device with external orifice bow, J hook etc. and stealthy correction facing together and realize pulling. Meanwhile, the mode of splicing the reinforcing block with the bag-shaped structure is adopted, so that the correction device is convenient to take and wear, and the use is more convenient.

Drawings

Fig. 1 is a schematic structural diagram of a bracket-free invisible appliance in a first embodiment of the invention.

Fig. 2 is an enlarged view of the extraoral attachment of fig. 1.

Fig. 3 is an exploded view of the extraoral attachment of fig. 2.

FIG. 4 is a perspective view of the extraoral attachment and extraoral arch of FIG. 2 shown in the attached configuration.

FIG. 5 is a schematic structural view of a bracket-free invisible appliance in a second embodiment of the invention when connected with a J-hook.

Fig. 6 is a schematic top view of the invisible orthodontic braces and the bag-shaped structures in fig. 5, which only shows the first molar and the first premolar on the left side wrapped in the invisible orthodontic braces.

Fig. 7 is an exploded view of the extraoral attachment of fig. 5.

Fig. 8 is a schematic structural view of the pouch structure of fig. 7.

Fig. 9 is a schematic structural view of the reinforcing block in fig. 7.

Fig. 10 is a perspective view of the extraoral attachment of fig. 7 in combination with a J-hook.

Fig. 11 is an exploded view of the extraoral attachment in accordance with the third embodiment of the present invention.

Fig. 12 is a perspective view of an extraoral attachment in accordance with a third embodiment of the present invention.

Description of the main elements

100. A bracket-free invisible appliance; 2. invisible orthodontic braces; 21. with an annular retention void; 23. double-cuspid tooth retention vacuole; 4. an extraoral appendage; 41. a bag-shaped structure; 410. an accommodating cavity; 412. a bag opening; 413. a base plate; 414. an end plate; 415. a sloping plate; 416. avoiding holes; 42. a reinforcing block; 421. a bottom surface; 423. an end face; 424. a bevel; 425. a body; 426. a buffer section; 427. a connecting rod; 200. an extraoral arch; 300. an intraoral retention accessory for bruxism; 400. a first molar; 500. a first premolar; 600. an intra-oral retention accessory for double-cuspid teeth; 700. j hook; 710. a bending part.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1, a first embodiment of the present invention provides a bracket-free invisible orthodontic appliance 100, which includes an invisible orthodontic brace 2 and an extraoral attachment 4.

Referring to fig. 2 to 4, in the present embodiment, the structure of the bracket-less invisible appliance 100 is the same as that of the prior art, and is not repeated herein for brevity. The mouth external part 4 comprises a bag-shaped structure 41 and a reinforcing block 42, the bag-shaped structure 41 is fixedly adhered to the buccal side of the invisible orthodontic tooth socket 2, and the specific fixing and adhering position can be set according to the orthodontic requirement, for example, in the embodiment, the bag-shaped structure 41 is fixedly adhered to the buccal side of the back dental area of the invisible orthodontic tooth socket 2 and is used for being matched with the mouth external arch 200. A receiving cavity 410 is formed in the bag-shaped structure 41, and the receiving cavity 410 penetrates through one side of the bag-shaped structure 41 to form a bag opening 412.

In the present embodiment, the bag-shaped structure 41 is a hollow block fixedly adhered to the buccal side of the posterior tooth area of the invisible orthodontic brace 2, the hollow block is a quadrangular prism structure, specifically, the quadrangular prism structure includes two bottom plates 413, an end plate 414 and two opposite inclined plates 415, which are oppositely arranged in parallel, the bottom plate 413 is in an isosceles trapezoid shape, the end plate 414 and the inclined plates 415 are both in a rectangle shape, the end plate 414 is connected to the upper bottom edge of the bottom plate 413, and the two inclined plates 415 are obliquely arranged and respectively connected to two oblique edges of the bottom plate 413; the bottom plate 413, the end plate 414 and the inclined plate 415 jointly define the accommodating cavity 410, and one end of the bottom plate 413 away from the end plate 414 and one end of the inclined plate 415 away from the end plate 414 jointly define the bag opening 412. And the two sloping plates 415 are obliquely arranged, so that the cross sections of the bag-shaped structure 41 and the accommodating cavity 410 are gradually reduced towards the direction away from the bag opening 412.

One of the bottom plates 413 is fixedly adhered to the buccal side of the posterior dental area of the invisible orthodontic braces 2, wherein the posterior dental area is defined according to the classification of teeth in the 2 nd edition of the introduction to oral medicine published by Beijing university medical Press, pages 36-38, including premolars and molars, and the FDI marking method of the anterior dental area is 4-8 teeth, and the FDI marking method of the anterior dental area is 1-3 teeth. Preferably, the length of the pocket 41 is such as to cover two or three tooth areas; in the present embodiment, the base plate 413 of the pocket structure 41 covers the maxillary second anterior molar region distal and the first molar region distal. The mouth 412 is located at the end of the receiving cavity 410 with the larger cross section, and in this embodiment, the mouth 412 faces towards the maxillary incisors. Preferably, the length of the bag-shaped structure 41 is 5-15mm, the mouth 412 of the receiving cavity 410 is approximately 8 × 6mm rectangular, the end with the smaller cross section in the receiving cavity 410 is approximately 5 × 3.5mm rectangular, and the thicknesses of the end plate 414, the sloping plate 415 and the bottom plate 413 are all approximately 1mm, so that when the bag-shaped structure 41 is fixedly adhered to the invisible orthodontic braces 2, a large foreign body sensation is not generated. The bag-shaped structure 41 is made of resin materials, preferably, the bag-shaped structure 41 and the invisible orthodontic braces 2 are made of the same materials, and the bag-shaped structure 41 and the invisible orthodontic braces 2 are chemically and fixedly bonded by the resin materials which are the same as the invisible orthodontic braces 2.

In this embodiment, the reinforcing block 42 is a quadrangular prism structure inserted and matched with the bag-shaped structure 41, and includes two bottom surfaces 421 arranged in parallel and opposite to each other, two end surfaces 423 arranged in parallel and opposite to each other, and two opposite inclined surfaces 424, where the bottom surface 421 is in an isosceles trapezoid shape, the end surfaces 423 and the inclined surfaces 424 are both rectangular, one of the end surfaces 423 is connected to a lower bottom edge of the bottom surface 421, the other end surface 423 is connected to an upper bottom edge of the bottom plate 413, and the two inclined surfaces 424 are arranged in an inclined manner and connected to two inclined edges of the bottom surface 421 respectively. Because the two inclined surfaces 424 are obliquely arranged, the reinforcing block 42 is formed into a quadrangular prism structure with a large end and a small end. In this embodiment, the structure of the extraoral arch 200 is the same as that of the prior art, and for the sake of brevity, the foot of the inner arch of the extraoral arch 200 is embedded in the end of the reinforcing block 42 with the larger cross section. The end with the smaller cross section of the reinforcing block 42 is inserted into the receiving cavity 410 through the bag opening 412, and when the reinforcing block 42 is inserted into the receiving cavity 410, the two inclined surfaces 424 can be respectively in parallel contact with the inner walls of the two inclined plates 415, and the end surface 423 with the smaller cross section of the reinforcing block 42 can be abutted against the inner wall of the end plate 414 of the bag-shaped structure 41. In the present embodiment, the reinforcing block 42 includes a body 425 and a buffer 426 connected to each other, the body 425 is made of a hard resin, for example, a thermosetting resin (polymethyl methacrylate) at one end of the reinforcing block 42 having a larger cross section, and the leg of the inner arch of the extraoral arch 200 is embedded in the body 425; the buffer 426 is made of soft lining resin, such as methyl acrylate soft plastic, silicon rubber, etc., and has a hardness smaller than that of the body 425, the buffer 426 is located at the end of the reinforcing block 42 with the smaller cross section, and the buffer 426 can elastically abut against the inner wall of the end plate 414 with the smaller cross section in the bag-shaped structure 41. Preferably, the end surface 423 with the larger cross section of the reinforcing block 42 is substantially rectangular with 8 × 6mm, and the end surface 423 with the smaller cross section of the reinforcing block 42 is substantially rectangular with 5 × 3.5 mm. Preferably, the edges of the reinforcing blocks 42 are rounded (blunted) to provide a smooth transition at the interface.

When the bracket-free invisible appliance 100 is manufactured, after acquiring the current intraoral three-dimensional data of a patient, the virtual movement of the target tooth position is performed by adopting the CAD/CAM and other related computer graphics technologies, after the virtual movement is completed, the three-dimensional printing technology is adopted to perform three-dimensional printing on a plurality of virtual models, after the three-dimensional printing is completed, the food and medicine-grade film pressing materials are adopted for heating, a three-dimensional diaphragm attached to the three-dimensional models is formed by using vacuum forming or pressure forming and other modes, the three-dimensional diaphragm is reasonably subjected to edge cutting, the edge is ensured to be in accordance with the wearing and mechanical principles, and the invisible orthodontic braces 2 are manufactured; the resin film molded by the hot press mold is made into the bag-shaped structure 41; the reinforcing block 42 is manufactured by computer digital simulation technology, the shape of the reinforcing block is matched with the geometric shape of the bag-shaped structure 41, and the reinforcing block 42 is embedded and fixed with one end of the extraoral arch 200. The manufacturing method belongs to the prior art, and is not described herein for brevity.

When the bracket-free invisible appliance 100 is installed, the bag-shaped structure 41 is fixedly adhered to the preset position of the invisible orthodontic braces 2, and the bag mouth 412 faces to the maxillary incisors; the invisible orthodontic braces 2 including the pocket-shaped structures 41 are put into the mouth, and the reinforcing blocks 42 connected with the extraoral arch 200 are put into the receiving cavities 410 of the pocket-shaped structures 41 through the pocket mouths 412. In correction, the bracket-less invisible appliance 100 generates the correction force by connecting the extraoral appendage 4 to the extraoral arch 200.

Referring to fig. 5 and 6, a second embodiment of the present invention provides a bracket-free invisible appliance, which is used in combination with a J-hook 700, and includes an invisible orthodontic brace 2 and an extraoral attachment 4. The invisible orthodontic braces 2 are substantially the same in structure as the prior art, but in the present embodiment, the invisible orthodontic braces 2 are further provided with ring-attached retention cavities 21 and bicuspid retention cavities 23. The buccal side and the lingual side of the first molar region of the invisible orthodontic braces 2 are convexly provided with the annular retention vacuole 21, the annular retention vacuole 21 is in a long strip shape, and the length direction of the annular retention vacuole is parallel to the length direction of the first molar region. When the belt ring-shaped retention vacuole 21 is used, the belt ring-shaped retention vacuole is matched with the molar mouth retention accessory 300, the shape of the molar mouth retention accessory 300 is matched with the belt ring-shaped retention vacuole 21, and the molar mouth retention accessory 300 is fixed on the buccal side and the lingual side of the first molar area of the first molar correction tooth socket 2 and is respectively embedded with the belt ring-shaped retention vacuole 21 on the buccal side and the lingual side of the first molar area of the invisible correction tooth socket 2. The double-cuspid tooth retention vacuole 23 is convexly arranged on the tongue side of the double-cuspid tooth area (namely, the first anterior molar area) of the invisible orthodontic braces 2, the double-cuspid tooth retention vacuole 23 is in a cuboid shape, and the length direction of the double-cuspid tooth retention vacuole 23 is parallel to the height direction of the first anterior molar 500. The bicuspid retention vacuole 23 is used in cooperation with the bicuspid intraoral retention attachment 600 fixed to the lingual side of the first premolar 500, and the bicuspid intraoral retention attachment 600 is shaped to match the bicuspid retention vacuole 23 and is fitted into the bicuspid retention vacuole 23. The intraoral retention fixture 300 for molar and the intraoral retention fixture 600 for double-tipped teeth can be made of photo-curing nano composite resin (methacrylate monomer is the main component), and the materials thereof belong to the prior art and are not described herein for brevity.

Referring to fig. 7 to 10, the structure of the external orifice fitting 4 is substantially the same as that of the first embodiment, and includes a bag-shaped structure 41 and a reinforcing block 42 inserted into the bag-shaped structure 41, mainly the difference is the fixing position of the bag-shaped structure 41 and the sizes of the bag-shaped structure 41 and the reinforcing block 42. In the present embodiment, one of the bottom plates 413 of the bag-shaped structure 41 is fixed and adhered to the anterior teeth area of the invisible orthodontic braces 2 on the buccal side and extends from the maxillary incisor area to the cuspid area, and the mouth 412 faces the mandibular anterior teeth area. Preferably, the height of the bag-shaped structure 41 (i.e., the vertical distance from the outer wall of the end plate 423 to the mouth 412 of the bag-shaped structure 41) is about 7mm, the mouth 412 of the receiving cavity 410 is substantially rectangular about 15 × 6mm to 10 × 4mm, the end of the receiving cavity 410 with a smaller cross section is substantially rectangular about 13 × 4mm to 8 × 3 mm, and the thicknesses of the end plate 414, the sloping plate 415 and the bottom plate 413 are all about 1mm, so that when the bag-shaped structure 41 is fixedly adhered to the invisible orthodontic braces 2, a large foreign body sensation is not generated.

The reinforcing block 42 is a quadrangular prism structure inserted and matched with the containing cavity 410 of the bag-shaped structure 41, and includes two bottom surfaces 421 arranged in parallel and opposite to each other, two end surfaces 423 arranged in parallel and opposite to each other, and two inclined surfaces 424 arranged in parallel and opposite to each other, wherein the bottom surface 421 is in an isosceles trapezoid shape, the end surfaces 423 and the inclined surfaces 424 are both rectangular, one end surface 423 is connected to the lower bottom edge of the bottom surface 421, the other end surface 423 is connected to the upper bottom edge of the bottom plate 413, and the two inclined surfaces 424 are arranged in an inclined manner and respectively connected to the two inclined edges of the bottom surface 421. Because the two inclined surfaces 424 are obliquely arranged, the reinforcing block 42 is formed into a quadrangular prism structure with a large end and a small end. In this embodiment, the end of the reinforcing block 42 with the larger cross section is used to connect with the inner end of the J-hook 700. in this embodiment, the structure of the J-hook 700 is prior art and will not be described herein for brevity. The inner end of the opening of the J-hook 700 is also provided with a bent part 710, the bent part 710 is embedded in the reinforcing block 42, and the contact area between the J-hook 700 and the reinforcing block 42 can be increased by arranging the bent part 710, so that the connection between the J-hook 700 and the reinforcing block 42 is firmer. The end with the smaller cross section of the reinforcing block 42 is inserted into the receiving cavity 410 through the bag opening 412, and when the reinforcing block 42 is inserted into the receiving cavity 410, the two inclined surfaces 424 can be respectively in parallel contact with the inner walls of the two inclined plates 415, and the end surface 423 with the smaller cross section of the reinforcing block 42 can be abutted against the inner wall of the end plate 414 of the bag-shaped structure 41.

In the present embodiment, the reinforcing block 42 includes a body 425 and a buffer 426 connected to each other, the body 425 is made of a hard resin, for example, thermosetting resin (polymethyl methacrylate) at one end of the reinforcing block 42 having a larger cross section, and the inner end of the J-hook 700 is embedded in the body 425; the buffer 426 is made of soft lining resin, such as methyl acrylate soft plastic, silicon rubber, etc., and has a hardness smaller than that of the body 425, the buffer 426 is located at the end of the reinforcing block 42 with the smaller cross section, and the buffer 426 can elastically abut against the inner wall of the end plate 414 with the smaller cross section in the bag-shaped structure 41. Preferably, the buffer 426 is bonded to the body 425 by chemical bonding, the height of the buffer 426 is about 1/3 of the total height of the reinforcing block 42, the height of the body 425 is about 2/3 of the total height of the reinforcing block 42, and the total height of the reinforcing block 42 is the vertical distance between the two end faces 423. Preferably, the edges of the reinforcing blocks 42 are rounded (blunted) to provide a smooth transition at the interface.

Referring to fig. 11 and 12 together, a third embodiment of the present invention provides a bracket-free invisible orthodontic appliance, which includes an invisible orthodontic brace 2 and an extraoral attachment 4, wherein the structure of the invisible orthodontic brace 2 is the same as that of the second embodiment, and is not repeated herein for brevity. The mouth attachment 4 comprises a bag-shaped structure 41 and a reinforcing block 42, the bag-shaped structure 41 is fixedly adhered to the buccal side of the invisible orthodontic tooth socket 2, in the embodiment, the bag-shaped structure 41 extends from the canine area to the first anterior molar area, and is used for being matched with an anterior maxillary retractor (not shown). The bag-shaped structure 41 is internally provided with an accommodating cavity 410 and a clearance hole 416, the accommodating cavity 410 penetrates through one end of the bag-shaped structure 41 to form a bag opening 412, the clearance hole 416 penetrates through one end of the bag-shaped structure 41 opposite to the bag opening 412, the clearance hole 416 is communicated with the accommodating cavity 410, and the aperture of the clearance hole 416 is smaller than that of the accommodating cavity 410.

In the present embodiment, the bag-shaped structure 41 is a hollow block body with a quadrangular prism structure, and the accommodating cavity 410 is a quadrangular prism cavity with a substantially same geometric shape as the bag-shaped structure 41, specifically, the bag-shaped structure 41 includes two bottom plates 413, an end plate 414 and two opposite sloping plates 415, which are oppositely disposed in parallel, the bottom plate 413 is in an isosceles trapezoid shape, the end plate 414 and the sloping plates 415 are both rectangular, the end plate 414 is connected to the upper bottom edge of the bottom plate 413, and the two sloping plates 415 are obliquely disposed and respectively connected to two sloping edges of the bottom plate 413; the bottom plate 413, the end plate 414 and the inclined plate 415 jointly enclose a containing cavity 410, and one end of the bottom plate 413, which is far away from the end plate 414, and one end of the inclined plate 415, which is far away from the end plate 414, jointly enclose a bag opening 412; the clearance hole 416 is formed through the end plate 414. The two sloping plates 415 are obliquely arranged, so that the cross section of the accommodating cavity 410 is gradually reduced towards the direction away from the bag opening 412, and the bag-shaped structure 41 is in a quadrangular structure with one large end and one small end.

Preferably, the length of the bag-shaped structure 41 is 5-15mm, the mouth 412 of the receiving cavity 410 is rectangular about 8 × 6mm, the end with a smaller cross section in the receiving cavity 410 is rectangular about 5 × 3.5mm, and the thicknesses of the end plate 414, the sloping plate 415 and the bottom plate 413 are all about 1mm, so that when the bag-shaped structure 41 is fixedly adhered to the invisible orthodontic braces 2, a large foreign body sensation is not generated. The bag-shaped structure 41 is made of resin materials, preferably, the bag-shaped structure 41 and the invisible orthodontic braces 2 are made of the same materials, and the bag-shaped structure 41 and the invisible orthodontic braces 2 are chemically and fixedly bonded by the resin materials which are the same as the invisible orthodontic braces 2. The clearance hole 416 is formed to penetrate substantially through the center of the end plate 414, and the diameter of the clearance hole 416 is preferably about 1 mm.

One end of the reinforcing block 42 is connected with a connecting rod 427 with external threads, the reinforcing block 42 is detachably inserted into the accommodating cavity 410 of the bag-shaped structure 41 through the bag opening 412, the connecting rod 427 penetrates through the spacing hole 416 corresponding to the bag-shaped structure 41, and the connecting rod 427 is used for being connected with an intraoral traction device of a maxillary anterior tractor. In this embodiment, the structure of the anterior maxillary retractor is well known in the art and will not be described herein for brevity.

In this embodiment, the reinforcing block 42 is a quadrangular prism structure inserted and matched with the bag-shaped structure 41, and includes two bottom surfaces 421 arranged in parallel and opposite to each other, two end surfaces 423 arranged in parallel and opposite to each other, and two opposite inclined surfaces 424, where the bottom surface 421 is in an isosceles trapezoid shape, the end surfaces 423 and the inclined surfaces 424 are both rectangular, one of the end surfaces 423 is connected to a lower bottom edge of the bottom surface 421, the other end surface 423 is connected to an upper bottom edge of the bottom plate 413, and the two inclined surfaces 424 are arranged in an inclined manner and connected to two inclined edges of the bottom surface 421 respectively. Because the two inclined surfaces 424 are obliquely arranged, the reinforcing block 42 is formed into a quadrangular prism structure with a large end and a small end. In this embodiment, one end of the connecting rod 427 is pre-buried in the end of the reinforcing block 42 with a smaller cross section, and the connecting rod 427 is preferably made of stainless steel wire with a diameter of about 0.9mm to resist deformation during traction. The end of the reinforcing block 42 with smaller cross section is inserted into the receiving cavity 410 through the bag opening 412, and when the reinforcing block 42 is inserted into the receiving cavity 410, the connecting rod 427 extends out of the bag-shaped structure 41 through the clearance hole 416, preferably, the length of the connecting rod 427 which is screwed out of the end plate 414 is about 2.5 mm; the two inclined surfaces 424 can be in parallel contact with the inner walls of the two sloping plates 415, respectively, and the end surface 423 of the reinforcing block 42 with the smaller cross section can be abutted against the inner wall of the end plate 414 of the bag-shaped structure 41.

In the present embodiment, the reinforcing block 42 includes a body 425 and a buffer 426 connected to each other, and the body 425 is made of a hard resin, for example, thermosetting resin (polymethyl methacrylate) at one end of the reinforcing block 42 having a larger cross section; the buffer 426 is made of soft lining resin, such as methyl acrylate soft plastic, silicon rubber, etc., and has a hardness smaller than that of the body 425, the buffer 426 is located at the end of the reinforcing block 42 with the smaller cross section, and the buffer 426 can elastically abut against the inner wall of the end plate 414 with the smaller cross section in the bag-shaped structure 41. Preferably, the buffer 426 and the body 425 are bonded by chemical bonding, the length of the buffer 426 is about 1/3 of the total length of the reinforcing block 42, the length of the body 425 is about 2/3 of the total length of the reinforcing block 42, and the total length of the reinforcing block 42 is the vertical distance between the two end faces 423. One end of the connecting rod 427 is pre-buried in the reinforcing block 42 and extends into the body 425 through the buffer 426. Preferably, the edges of the reinforcing blocks 42 are rounded (blunted) to provide a smooth transition at the interface.

When the bracket-free invisible appliance is manufactured, after three-dimensional data in the current situation of a patient is obtained, the position of a target tooth is virtually moved by adopting a computer graphics technology related to CAD/CAM and the like, after the virtual movement is finished, a plurality of virtual models are three-dimensionally printed by adopting a three-dimensional printing technology, after the three-dimensional printing is finished, a three-dimensional diaphragm attached to the three-dimensional model is formed by adopting a food and medicine level film pressing material heating mode, a reasonable edge cutting mode is carried out on the three-dimensional diaphragm, the edge is ensured to be in accordance with the wearing and mechanical principles, and the invisible appliance tooth socket 2 is manufactured; manufacturing the bag-shaped structure 41 by using a resin film formed by hot die pressing, and arranging a clearance hole 416 at one end of the bag-shaped structure 41, which is opposite to the bag opening 412, according to actual needs; the reinforcing block 42 is manufactured by computer digital simulation technology, the shape of the reinforcing block is matched with the geometric shape of the bag-shaped structure 41, and the reinforcing block 42 is embedded and fixed with one end of the connecting rod 427. The manufacturing method belongs to the prior art, and is not described herein for brevity.

When the bracket-free invisible appliance is installed, the bag-shaped structure 41 is fixedly adhered to the buccal side of the cusp area and the first premolar area of the invisible appliance tooth socket 2, and the pocket opening 412 of the bag-shaped structure 41 faces to the far middle (the upper jaw molar direction); putting the invisible orthodontic braces 2 containing the bag-shaped structures 41 into the mouth, and then putting the reinforcing blocks 42 provided with the connecting rods 427 into the accommodating cavities 410 of the bag-shaped structures 41 through the bag mouths 412 to enable the connecting rods 427 to extend out of the bag-shaped structures 41; connecting the connecting rod 427 with the intraoral traction device of the anterior maxillary retractor; the intraoral traction device and the maxillary anterior traction device are connected by the rubber band to generate the correcting force.

Above-mentioned ware 100 is rescued in stealthy of no support groove, its stealthy braces 2 of correcting pass through behind sack structure 41, the boss 42 with extraoral arch, J hook etc. be connected, when correcting, the traction force of extraoral arch, J hook etc. transmit sack structure 41 through the boss 42, sack structure 41 with stealthy braces 2 of correcting link transmission traction force, stealthy braces 2 of correcting will correct the power and act on periodontal and jawbone to reach the correction of tooth and the function of teenagers' early jawbone is correct.

Above-mentioned ware 100 is rescued in stealthy nothing support groove, pocket structure 41 is connected with stealthy braces 2 of rescaling through the mode of solid gluing, need not to punch or excision on stealthy braces 2 of rescaling, can not destroy stealthy wholeness and the cladding effect of rescuring braces 2, can rescue braces 2 to whole application of force of a whole row of tooth with complete stealthy, realize the correction of whole dentition, and avoid it to set up on single tooth, the effect to single tooth causes unexpected effect of rescaling.

Above-mentioned ware 100 is rescued in stealthy nothing support groove, the extraoral arch, J hook etc. are through boss 42, pocket structure 41 combines with stealthy braces 2 of correcting, boss 42, the combination form that pocket structure 41 was pegged graft, it is compared with the pull arch or the hook of pulling of installing on stealthy braces 2 in prior art, boss 42, pocket structure 41 is difficult for taking place to warp or taking place the slope under the exogenic action, and it is bigger with the atress face of stealthy braces 2 of correcting, make traction force can transmit to stealthy braces 2 more evenly, therefore, it need not to thicken the atress position of stealthy braces 2 of correcting, reduce the inhomogeneous harmful effects of correcting the in-process and correcting the tooth of stealthy braces 2 thickness and correcting, and ensure that stealthy braces 2 of correcting wear comfortablely. Meanwhile, the reinforcing block 42 and the bag-shaped structure 41 are connected in an inserting mode, so that the assembly and disassembly are more convenient.

In the bracket-free invisible appliance 100, the reinforcing block 42 is inserted into the bag-shaped structure 41 through the bag opening 412, and under the orientation design of the bag opening 412 and the limiting effect of the accommodating cavity 410, the reinforcing block 42 cannot be separated from the bag-shaped structure 41 under the action of traction force, so that on the premise of ensuring safety, a doctor can apply larger external force to the bracket-free invisible appliance 100 according to the condition of a patient.

The bracket-free invisible appliance 100 can limit the angle position of the reinforcing block 42 connected with the extraoral arch, the J-hook and the like through the accommodating cavity 410, and can more accurately control the force application direction of traction force compared with the mode of connecting a maxillary anterior retractor through a traction protrusion, a pull ring, a notch and the like in the prior art. And when bag-shaped structure 41 is firmly glued, the doctor can set up the installation angle of bag-shaped structure 41 according to the particular case of every patient, more conveniently can make individualized correction scheme to the patient.

Above-mentioned ware 100 is rescued in stealthy nothing bracket, its bag structure 41 is hollow quadrangular prism structure, and have the swash plate 415 of slope setting, boss 42 has the inclined plane 424 with bag structure 41 swash plate 415 inner wall parallel contact, when correcting, not only can realize the transmission of traction force through the contact of boss 42 terminal surface 423 with bag structure 41 end plate 414, can also pass through the cooperation of inclined plane 424 and swash plate 415, further increase the area of contact of boss 42 and bag structure 41, make traction force can more evenly transmit to stealthy braces 2 of correcting, prevent that stealthy braces 2 from taking place to warp.

Above-mentioned ware 100 is rescued in stealthy nothing bracket, its boss 42 includes interconnect's body 425 and buffer 426, body 425 adopts hard resin to make, it can connect rod 427 and carry out better support, buffer 426 adopts soft lining resin to make, soft lining resin has certain elasticity, it has certain cushioning effect, it can apply more mitigateing, even external force to bag-shaped structure 41 and stealthy tooth socket 2 of correcting through soft lining resin, further reduce the deformation that stealthy tooth socket 2 was rescued.

Above-mentioned ware 100 is rescued in stealthy of no support groove, its tongue side of the two cuspid tooth areas of stealthy braces 2 of correcting is equipped with two cuspid tooth maintenance vacuole 23, can cooperate with the two cuspid intraoral maintenance annex 600 of being fixed in on 500 tongue sides of first preceding molar during the use, the buccal side and the tongue side of first molar area all are equipped with belt ring form maintenance vacuole 21, can cooperate with the intraoral maintenance annex 300 of molar that is fixed in on first molar 400 during the use, thereby can correct the braces 2 of stealthy stably to be fixed in on the upper jaw tooth. First molar district adopts belt annular maintenance vacuole 21, and it can simulate traditional just abnormal belt circle to the maintenance of the first molar 400 of reinforcing upper jaw, and then the stealthy probability of correcting facing 2 and taking off the cover when having reduced and drawing. The bicuspid region is provided with the bicuspid retention vacuole 23 only on the lingual side thereof, which reduces interference when the reinforcing block 42 is put into the bag-shaped structure 41 while increasing retention to the first premolar 500 of the upper jaw, and facilitates wearing of the bracket-less invisible appliance 100.

It is understood that the shapes of the bag-shaped structure 41, the accommodating cavity 410 and the reinforcing block 42 are not limited to the embodiment, for example, in other embodiments, the bag-shaped structure 41 may have a cubic shape, and the accommodating cavity 410 and the reinforcing block 42 may be quadrangular prism-shaped cavities in the embodiment.

It is understood that the receiving cavity 410 is not limited to the quadrangular prism-shaped cavity in the present embodiment, for example, in other embodiments, the hole wall surrounding the receiving cavity 410 may have one or more first inclined portions, so that the cross-sectional area of the receiving cavity 410 is gradually reduced in a direction away from the bag opening 412; the reinforcing block 42 is correspondingly provided with one or more second inclined portions which can be in parallel contact with the first inclined portions. It will be appreciated that the pocket 41 and the stiffener 42 may be sized to other values as desired.

It will be appreciated that the mounting location of the pocket 41 and the orientation of its mouth 412 may be set to other locations and orientations as required for the correction.

It is understood that the extraoral attachment 4 is not limited to the extraoral arch 200, the J-hook 700, and the anterior maxillary distractor of the present embodiment, but may be used for other orthodontic devices, such as buccal multi-curved springs, and the external arrangement of the bag-shaped structure 41 may be adjusted as required.

Other parts which are not described in the present invention are the same as those in the prior art.

The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.

Claims (10)

1. An extraoral attachment (4), characterized in that: the mouth external accessory (4) comprises a bag-shaped structure (41) and a reinforcing block (42), wherein an accommodating cavity (410) is arranged in the bag-shaped structure (41), and the accommodating cavity (410) penetrates through one side of the bag-shaped structure (41) to form a mouth (412); the reinforcing block (42) is detachably plugged with the accommodating cavity (410) through the bag opening (412).

2. An extraoral attachment (4) as claimed in claim 1, wherein: the bag-shaped structure (41) and the reinforcing block (42) are both made of resin.

3. An extraoral attachment (4) as claimed in claim 1, wherein: the hole wall which encloses the containing cavity (410) is provided with a first inclined part so that the cross section area of the containing cavity (410) is gradually reduced towards the direction far away from the bag opening (412); the reinforcing block (42) has a second inclined portion capable of being in parallel contact with the first inclined portion.

4. An extraoral attachment (4) as claimed in claim 1, wherein: the bag-shaped structure (41) is further provided with a position avoiding hole (416) in a penetrating mode, the position avoiding hole (416) is arranged at one end, opposite to the bag opening (412), of the bag-shaped structure (41) in a penetrating mode, the position avoiding hole (416) is communicated with the accommodating cavity (410), one end of the reinforcing block (42) is connected with a connecting rod (427) with an external thread, and the connecting rod (427) penetrates through the position avoiding hole (416) corresponding to the bag-shaped structure (41).

5. An extraoral attachment (4) as claimed in claim 4, wherein: the bag-shaped structure (41) is a hollow quadrangular structure and comprises two base plates (413), an end plate (414) and two opposite inclined plates (415) which are arranged in parallel and oppositely, the base plates (413) are in an isosceles trapezoid shape, the end plates (414) and the inclined plates (415) are rectangular, the end plates (414) are connected to the upper bottom edge of the base plates (413), the two inclined plates (415) are obliquely arranged and respectively connected to two inclined edges of the base plates (413), the end plates (414) and the inclined plates (415) jointly enclose the accommodating cavity (410), and the bag opening (412) is enclosed by one end of the base plates (413) far away from the end plates (414) and one end of the inclined plates (415) far away from the end plates (414); the avoiding hole (416) is arranged on the end plate (414) in a penetrating way;

the reinforcing block (42) is a quadrangular structure which is in plug fit with the bag-shaped structure (41) and comprises two bottom surfaces (421) which are arranged in parallel and oppositely, two end surfaces (423) which are arranged in parallel and oppositely and two opposite inclined surfaces (424), the bottom surfaces (421) are in an isosceles trapezoid shape, the end surfaces (423) and the inclined surfaces (424) are both in a rectangular shape, one end surface (423) is connected with the lower bottom edge of the bottom surface (421), the other end surface (423) is connected with the upper bottom edge of the bottom surface (421), the two inclined surfaces (424) are obliquely arranged and respectively connected with the two inclined edges of the bottom surface (421), one end of the connecting rod (427) is pre-embedded in one end with a smaller cross section of the reinforcing block (42), when the reinforcing block (42) is inserted into the containing cavity (410), the end face (423) of the reinforcing block (42) with the smaller cross section can be abutted against the inner wall of the end plate (414), and the two inclined faces (424) can be respectively in parallel contact with the inner walls of the two inclined plates (415).

6. An extraoral attachment (4) as claimed in claim 1, wherein: the reinforcing block (42) comprises a body (425) and a buffer part (426) which are connected with each other, the body (425) is made of hard resin, the buffer part (426) is made of soft lining resin, the buffer part (426) is positioned at one end, inserted into the accommodating cavity (410), of the reinforcing block (42), and the buffer part (426) can elastically abut against the bag-shaped structure (41).

7. A bracket-free invisible appliance (100), characterized in that: the mouth external attachment (4) comprises a hidden correcting tooth socket (2) and a mouth external attachment (4), wherein the mouth external attachment (4) comprises a bag-shaped structure (41) and a reinforcing block (42), the bag-shaped structure (41) is fixedly adhered to the buccal side of the hidden correcting tooth socket (2), an accommodating cavity (410) is arranged in the bag-shaped structure (41), and the accommodating cavity (410) penetrates through one side of the bag-shaped structure (41) to form a mouth (412); the reinforcing block (42) is detachably plugged with the accommodating cavity (410) through the bag opening (412).

8. The bracket-free invisible appliance (100) of claim 7, characterized in that: the buccal side and the lingual side of the first molar area of the invisible orthodontic braces (2) are both provided with ring-shaped retention vacuoles (21).

9. The bracket-free invisible appliance (100) of claim 7, characterized in that: the tongue side of the double-cuspid tooth area of the invisible orthodontic braces (2) is provided with a double-cuspid tooth fixing vacuole (23).

10. The bracket-free invisible appliance (100) of claim 7, characterized in that: the length of the bag-shaped structure (41) can cover 2-3 tooth areas of the invisible orthodontic braces (2).

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