CN213607029U

CN213607029U - Dental pre-formed accessory system

Info

Publication number: CN213607029U
Application number: CN202022521041.9U
Authority: CN
Inventors: 王立凯
Original assignee: China Rehabilitation Research Center
Current assignee: China Rehabilitation Research Center
Priority date: 2020-11-04
Filing date: 2020-11-04
Publication date: 2021-07-06
Anticipated expiration: 2030-11-04

Abstract

The utility model discloses a dental pre-forming accessory system, belonging to the technical field of dental invisible correction, comprising a guide plate, which consists of a first organization surface and a first outer surface, wherein the first organization surface is matched with the occlusal surface or the incisal end of an adaptive tooth and is used for positioning the guide plate on the occlusal surface or the incisal end of the adaptive tooth, and the adaptive tooth comprises a target tooth and an adjacent tooth thereof; the two ends of the connecting piece are respectively provided with a first connecting part and a second connecting part, and the connecting piece is connected with the first outer surface of the guide plate through the first connecting part; and the accessory consists of a second tissue surface and a second outer surface, the second tissue surface is adaptive to the target tooth-lip-buccal surface or the tongue surface and is used for being bonded with the target tooth-lip-buccal surface or the tongue surface, and the connecting piece is connected with the second outer surface of the accessory through a second connecting part. The utility model discloses a baffle is positioned adaptation tooth occlusal surface or cuts the end, makes annex location and bonds in target tooth surface through the connecting piece, and annex overall dimension is accurate, and it is firm to bond, is difficult for taking place to shift and warp.

Description

Dental pre-formed accessory system

Technical Field

The utility model belongs to the technical field of the stealthy rescue of dentistry, especially, relate to an annex system is in advance carried out to dentistry.

Background

The bracket-free invisible orthodontic technology appears in the nineties of the last century, and is an orthodontic technology for tooth movement, wherein orthodontic design is carried out under a three-dimensional digital model based on computer aided design and engineering manufacturing technology, and a transparent bracket-free invisible appliance is manufactured. The bracket-free invisible appliance mainly depends on a thermoplastic material generated by computer design and an accessory bonded on the surface of a tooth, and the thermoplastic material and the accessory are cooperated to exert the correction efficiency of tooth movement.

The accessory is a resin structure which can better realize tooth movement of an auxiliary appliance in the bracket-free appliance and has the functions of retention and conduction of appliance. In the clinical application of the invisible orthodontic technology, the adhesion of the attachment is a very important link, and directly influences the efficiency of tooth movement and the achievement of the orthodontic goal. At each stage of the appliance, the attachment is fully engaged with the appliance to provide enhanced retention and aid in tooth movement.

At present, when the accessory is clinically installed, a film-pressing type transparent plastic template which is provided with an accessory cavity and matched with a target dentition of a patient is generally used, a proper amount of light-cured composite resin material is filled in the accessory cavity of the template, the template is worn on the target dentition of the patient in place and fixed, and the template is taken down after resin in the accessory cavity is cured, molded and adhered to the target dentition. At present, the template is easy to deform or is incompletely positioned, so that the accessory is displaced and deformed; the amount of resin filled in the template cavity depends on the naked eyes and experience of medical staff, and is easy to be too much or too little, the resin is overflowed when the resin is too much, the attachments are heightened, the appliance is not attached, and the incomplete appearance and incomplete bonding of the attachments are caused when the resin is too little; the operation process is complicated, the bonding surface is easily polluted by saliva, the bonding firmness is reduced, and the falling rate of accessories is high. The above-mentioned defects affect the effective application of the bracket-free invisible orthodontic technology, and improvement thereof is urgently needed.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve the problem that prior art exists and propose, its purpose provides a baffle and is positioned adaptation tooth occlusal surface or cuts the end, makes the annex be located the target tooth surface through the connecting piece, and the annex overall dimension is accurate, and it is firm to bond, and the difficult dentistry that takes place to shift and warp is accessory system in advance.

In order to achieve the above objects, an embodiment of the present invention provides a dental pre-made accessory system, which is designed and manufactured by a computer aided design and manufacturing system, and comprises:

the guide plate consists of a first tissue surface and a first outer surface, the first tissue surface is matched with the occlusal surface or the incisal end of the adaptation teeth and is used for positioning the guide plate on the occlusal surface or the incisal end of the adaptation teeth, and the adaptation teeth comprise target teeth and adjacent teeth thereof;

the two ends of the connecting piece are respectively provided with a first connecting part and a second connecting part, and the connecting piece is connected with the first outer surface of the guide plate through the first connecting part;

an attachment member comprising a second tissue surface adapted to conform to a target labial buccal surface or lingual surface and a second outer surface coupled to the second coupling portion of the coupling member;

when the guide plate is worn on the occlusal surface or the incisal end of the adaptation tooth, the guide plate is connected with the accessory through the connecting piece, so that the accessory is positioned and adhered to the buccal surface or the lingual surface of the target tooth through the second tissue surface.

Further, the connecting piece adopts a bent rod structure protruding towards the buccal side or the lingual side;

the second outer surface is provided with a groove, and the second connecting part of the connecting piece is arranged in the groove of the second outer surface.

Further, the second outer surface comprises a plurality of plane structures and/or a plurality of curved structures;

the groove is arranged at the central position of the outermost planar structure in the plurality of planar structures or at the appearance high point of the outermost curved surface structure in the plurality of planar structures.

Furthermore, the diameter of the first connecting part and the diameter of the second connecting part of the connecting piece are both smaller than the diameter of the rod body of the connecting piece.

Furthermore, one dentition is provided with one or a plurality of the pre-formed accessory systems, one dental pre-formed accessory system is provided with a guide plate, the first organization surface of the guide plate is matched with at least three adapting teeth, and the number of the accessories is one or a plurality.

Further, the pre-formed accessory system is made of a tooth-colored resin material or a transparent resin material.

The utility model discloses owing to adopted above-mentioned scheme, the utility model discloses a baffle is through the occlusal surface or the tangent end anatomical morphology location of target tooth and adjacent tooth, through its first organizing face accuracy, be located the adaptation tooth completely, reaches the purpose for annex pinpointing. The accessory is manufactured by adopting computer aided design and manufacturing technology, the external dimension of the accessory is accurate, and the problem of accessory volume shrinkage caused by using a light-cured composite resin material in the cavity of the template accessory at present is solved. The accessory is adhered to the target tooth through the second tissue surface, the adhesion degree is high, and the redundant adhesive is easy to remove. The connecting piece is connected with the guide plate and the accessory, the guide plate is worn on the occlusal surface or the incisal end of the adaptation tooth, and the accessory is accurately positioned on the target tooth through anatomical form positioning of the occlusal surface or the incisal end of the adaptation tooth. Additionally, the utility model discloses an annex system's bonding operation is simple relatively, swift in advance to the dentistry, has shortened clinical operation time, has reduced the emergence probability that saliva pollutes the bonding face, has improved the success rate that the annex bondd.

Drawings

Fig. 1 is a schematic view of a dental preform attachment system according to an embodiment of the present invention when worn on a fitting tooth;

fig. 2 is a schematic view of a dental preform attachment system according to another embodiment of the present invention, as worn on a fitting tooth;

FIG. 3 is an enlarged cross-sectional view of the target tooth of FIG. 1 or FIG. 2 taken along line A-A;

FIG. 4 is a schematic view of the attachment of FIG. 1 or FIG. 2;

fig. 5 is a flow chart illustrating a process for manufacturing a dental pre-form attachment system according to an embodiment of the present invention.

Wherein: 1. a guide plate; 11. a first tissue side; 12. a first outer surface; 2. a connecting member; 21. a first connection portion; 22. a second connecting portion; 3. an accessory; 31. a second tissue side; 32. a second outer surface; 33. a groove; 41. fitting teeth; 42. a target tooth; 43. adjacent teeth.

Detailed Description

The present invention will be described in detail below with reference to the accompanying drawings and examples:

the embodiment of the utility model provides a dentistry is accessory system in advance, it adopts computer aided design and manufacturing system design, manufacturing to form to take the accessory system in advance, as shown in fig. 1 to as 4, it includes baffle 1, connecting piece 2 and annex 3 to take the accessory system in advance.

The guide plate 1 is composed of a first organization surface 11 and a first outer surface 12, the first organization surface 11 is matched with an occlusal surface or a tangential end of the adapting tooth 41 and used for positioning the guide plate 1 on the occlusal surface or the tangential end of the adapting tooth 41, and the adapting tooth 41 comprises a target tooth 42 and an adjacent tooth 43 thereof.

The two ends of the connecting piece 2 are respectively provided with a first connecting part 21 and a second connecting part 22, and the connecting piece 2 is connected with the first outer surface 12 of the guide plate 1 through the first connecting part 21.

The attachment 3 is composed of a second tissue surface 31 and a second outer surface 32, the second tissue surface 31 is adapted to the labial or lingual surface of the target tooth 42, and the connection element 2 is connected to the second outer surface 32 of the attachment 3 by the second connection portion 22. Specifically, the accessory 3 may have a rectangular parallelepiped structure, a cylindrical structure, a hemispherical structure, a drop-shaped structure, or an irregular structure.

The accessory 3 is made by a computer aided design and manufacturing system, the cavity is not required to be filled, the external dimension of the accessory 3 is accurate, and the bonding fitting degree is high. Specifically, the first connecting portion is disposed on a side of the first outer surface 12 adjacent to the accessory.

One dentition is provided with one or a plurality of pre-forming accessory systems, one dental pre-forming accessory system is provided with a guide plate 1, the first organization surface 11 of the guide plate 1 is matched with at least three adapting teeth 41, the number of the accessories 3 is one or a plurality, as shown in fig. 2, according to the use requirement, the target teeth 42 can be arranged into one or a plurality, when the target teeth are arranged into a plurality, each accessory corresponds to one connecting piece, each accessory can be respectively provided with the guide plate, and a plurality of accessories can be provided with the same guide plate; the target tooth 42 may be generally located at the middle of the dentition of guide plate 1, or the target dentition may be located at one end of the dentition of guide plate 1 when the target tooth is located at the end of the dentition.

When the guide plate 1 is worn on the occlusal surface or the incisal end of the adaptation tooth, the guide plate 1 is connected with and positions the accessory 3 through the connecting piece 2, so that the accessory is adhered to the labial, buccal surface or lingual surface of the target tooth through the second tissue surface.

The guide plate 1 of the utility model can accurately and completely position the adaptive teeth 41 through the first organization surface 11, thereby achieving the purpose of accurately positioning the accessories; the accessory 3 is made by adopting computer aided design and manufacturing technology, has accurate appearance dimension and avoids the problem of accessory volume shrinkage caused by using a light-cured composite resin material in the mould cavity of the mould plate accessory at present. The attachment is bonded to the target tooth 42 through the second tissue surface 31, the degree of bonding is high, and the excess adhesive is easily removed. The connecting piece 2 is connected with the guide plate 1 and the accessory 3, the guide plate is worn on the occlusal surface or the cutting end of the adapting tooth 41, and the accessory 3 is accurately positioned on the target tooth 42 through the positioning of the anatomical form of the occlusal surface or the cutting end of the adapting tooth 41.

It should be noted that, in the present invention, "inner" and "outer" all use the fitting tooth as a reference, "inner" is the direction towards the fitting tooth, and "outer" is the direction away from the fitting tooth.

Preferably, the pre-formed accessory system is made of a dental or transparent resin material. The existing method for preparing the accessories generally uses light-cured composite resin, and the volume of the accessories after curing is changed due to the inherent polymerization shrinkage; the utility model discloses a tooth color or transparent resin material that computer aided design and manufacturing system made, its dimensional stability is strong, can not influence the change of 3 volumes of annex after the solidification. In addition, the color of the material is tooth color or transparent color, so that the beauty of the face of a patient is not affected.

Further, as shown in fig. 3 and 4, the connecting member 2 has a curved bar structure protruding to a buccal side or a lingual side. The second outer surface 32 is provided with a groove 33, the groove 33 can adopt a structure which is convenient to prepare such as a round groove 33 and a square groove 33, the second connecting part 22 of the connecting piece 2 is detachably arranged in the groove 33 of the second outer surface 32, the groove structure enables the second connecting part 22 to be arranged in the groove 33 and positioned below the plane of the second outer surface 32 of the accessory 3, when the connecting piece 2 is detached from the accessory 3 through the second connecting part 22, the second outer surface 32 of the accessory 3 has no projection, and the phenomenon that the detachment of the connecting piece 2 affects the overall appearance of the accessory is avoided.

Further, the second outer surface 32 is a plurality of planar structures and/or a plurality of curved structures, when the outermost side of the second outer surface 32 is a planar structure, the groove is disposed at the central position of the planar structure, and when the outermost side of the second outer surface 32 is a curved structure, the groove is disposed at the high point of the curved structure, so as to prevent the groove 33 from affecting the overall appearance of the accessory.

Preferably, as shown in fig. 3, the diameter of the first connecting portion 21 and the diameter of the second connecting portion 22 of the connecting member 2 are smaller than the diameter of the rod body of the connecting member 2, so that the connecting member 2 can be detached from the dental pre-attachment system by slightly pushing the connecting member to break the first connecting portion 21 and the second connecting portion 22. It should be noted that the first connecting portion 21 and the second connecting portion 22 may also adopt other structures which are convenient to disassemble, for example, the first connecting portion 21 and the second connecting portion 22 may be equal to the diameter of the rod body of the connecting member, and the first connecting portion 21 and the second connecting portion 22 may be cut off by using a high-speed turbo drill; the first connecting portion 21 and the second connecting portion 22 may also adopt a snap structure, which is simple and easy to detach.

The embodiment of the utility model provides a dentistry is attachment system's bonding method in advance again, including following operation process:

and step 11, performing acid etching and moisture insulation treatment on the accessory mounting surface of the target tooth 42 in the oral cavity, and coating a treating agent.

And step 12, pretreating the second tissue surface 31 of the accessory in the accessory pre-forming system, and coating a treating agent and a resin binder.

Step 13, the pre-formed attachment system is worn in the mouth of the patient such that the first tissue surface 11 of the guide plate 1 is positioned on the occlusal or incisal end of the fitting tooth 41.

The first outer surface 12 of the guide plate 1 is pressed with a finger 14 to fix the guide plate 1 to the adapter 41.

And 15, lightly pressing the second outer surface 32 of the accessory by fingers to enable the second tissue surface 31 of the accessory 3 to be attached to the accessory mounting surface of the target tooth 42, and scraping the overflowing excessive resin adhesive.

And step 16, after the resin adhesive is cured, laterally and slightly pushing the connecting piece to break the first connecting part 21 and the second connecting part 22, taking out the connecting piece 2 and the guide plate 1, and finishing the adhesion of the accessory 3.

The resin binder can be photo-curing resin binder, chemical curing resin binder, photo-curing resin binder and chemical curing resin binder, and the required kind of binder can be selected according to the material of the accessory 3. When the light-cured resin adhesive is used, after excessive adhesive overflowing is scraped, a light-cured lamp can be used for irradiating and curing.

The embodiment of the present invention further provides a method for preparing a dental pre-made attachment system, which is used for preparing the dental pre-made attachment system described in any of the above embodiments, as shown in fig. 5, the method includes:

step S21, acquiring a first three-dimensional digital model: when a patient is subjected to bracket-free invisible correction, a three-dimensional digital model of the initial full dentition of the patient is obtained through a scanner, a correction scheme is determined, the correction scheme comprises the number, the position, the shape and the like of the accessories, a first three-dimensional digital model is determined according to the correction scheme, and the first three-dimensional digital model is a digital model of the initial full dentition configured with the accessories.

Step S22, acquiring a second three-dimensional digital model: designing the pre-formed attachment system using a computer-aided design system based on the first three-dimensional digital model to form a second three-dimensional digital model, the second three-dimensional digital model being a digital model of an initial full dentition configured with the pre-formed attachment system, the pre-formed attachment system including the guide plate, the connector, and the attachment.

Wherein, when obtaining a second three-dimensional digital model of the dentition of the patient, the second three-dimensional digital model is a digital model of an initial full dentition configured with at least one pre-formed attachment system, the pre-formed attachment system comprises one guide plate, at least one attachment and at least one connecting piece, the number of attachments corresponds to the number of connecting pieces, and the number of adaptation teeth corresponding to each attachment is at least three.

Step S23, acquiring a third three-dimensional digital model: removing the three-dimensional model of the initial full dentition portion using a computer-aided design system based on the second three-dimensional digitized model to form a third three-dimensional digitized model, the third three-dimensional digitized model being a three-dimensional digitized model of the pre-form attachment system.

Step S24, manufacturing the pre-form attachment system: and manufacturing the pre-formed accessory system by using a computer-aided manufacturing system on the basis of the third three-dimensional digital model.

Wherein, when the computer aided design and manufacture system is used for manufacturing the pre-formed accessory system, tooth color or transparent resin material is selected for manufacturing. The guide plate, the connecting piece and the accessory are integrally made of the same material, and the guide plate, the connecting piece and the accessory can also be made of different materials according to structural requirements, and are manufactured respectively and then assembled to form a splicing structure.

And in the manufacturing process, according to the third three-dimensional digital model designed by the computer aided design system, printing and manufacturing can be carried out by using a 3D printing device in the computer aided manufacturing system.

The guide plate, the connecting piece and the accessories can be integrally manufactured, and the guide plate, the connecting piece and the accessories can also be designed into a splicing structure and manufactured separately and then assembled to form a pre-manufactured accessory system.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. A dental pre-form attachment system designed and manufactured using a computer-aided design and fabrication system, the pre-form attachment system comprising:

2. The dental pre-attachment system of claim 1, wherein the attachment member is in the form of a buccal or lingual convexly curved bar;

3. The dental pre-attachment system of claim 2, wherein the second outer surface comprises a plurality of planar structures and/or a plurality of curved structures;

4. The dental pre-attachment system of claim 2, wherein the connector first and second connector diameters are each less than a rod diameter of the connector.

5. The dental pre-attachment system of claim 1, wherein one dentition is provided with one or more of the pre-attachment systems, one of the dental pre-attachment systems is provided with a guide plate, a first tissue surface of the guide plate is matched to at least three mating teeth, and the number of the attachments is one or more.

6. The dental pre-attachment system of claim 1, wherein the pre-attachment system is made of a dental resin material or a clear resin material.