WO2021135488A1 - 牙科矫治器械及其设计方法和制备方法 - Google Patents

牙科矫治器械及其设计方法和制备方法 Download PDF

Info

Publication number
WO2021135488A1
WO2021135488A1 PCT/CN2020/120200 CN2020120200W WO2021135488A1 WO 2021135488 A1 WO2021135488 A1 WO 2021135488A1 CN 2020120200 W CN2020120200 W CN 2020120200W WO 2021135488 A1 WO2021135488 A1 WO 2021135488A1
Authority
WO
WIPO (PCT)
Prior art keywords
arch
dental
shell
shaped body
palatal
Prior art date
Application number
PCT/CN2020/120200
Other languages
English (en)
French (fr)
Inventor
沈刚
魏亭亭
王特
蒋健羽
徐子卿
郭涛
王星星
杨森森
庄慧敏
吴刚
Original Assignee
上海正雅齿科科技股份有限公司
沈刚
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201911422575.1A external-priority patent/CN111067644B/zh
Priority claimed from CN201922484327.1U external-priority patent/CN211750179U/zh
Application filed by 上海正雅齿科科技股份有限公司, 沈刚 filed Critical 上海正雅齿科科技股份有限公司
Priority to EP20909363.2A priority Critical patent/EP4059465B1/en
Priority to CN202090000580.3U priority patent/CN220109869U/zh
Priority to AU2020419367A priority patent/AU2020419367B2/en
Priority to JP2022600100U priority patent/JP3240098U/ja
Publication of WO2021135488A1 publication Critical patent/WO2021135488A1/zh
Priority to US17/807,556 priority patent/US20220313395A1/en

Links

Images

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/10—Devices having means to apply outwardly directed force, e.g. expanders
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C13/00—Dental prostheses; Making same
    • A61C13/34—Making or working of models, e.g. preliminary castings, trial dentures; Dowel pins [4]
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/002—Orthodontic computer assisted systems
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C7/00—Orthodontics, i.e. obtaining or maintaining the desired position of teeth, e.g. by straightening, evening, regulating, separating, or by correcting malocclusions
    • A61C7/08—Mouthpiece-type retainers or positioners, e.g. for both the lower and upper arch
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/26—Component parts, details or accessories; Auxiliary operations
    • B29C51/46—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/386—Data acquisition or data processing for additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y50/00—Data acquisition or data processing for additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y80/00—Products made by additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/753—Medical equipment; Accessories therefor

Definitions

  • This application relates to the technical field of medical devices, and in particular to a dental orthodontic device and its design method and preparation method.
  • Some embodiments of this application provide a dental appliance, a design method and a preparation method thereof, a dental appliance kit, and a dental appliance system.
  • the maxillary arch of the dental appliance can induce maxillary palatal mesut bone deposition and buccal-lingual lateral orientation through deformation.
  • the enlargement enables the teeth in the posterior region to move sideways under the action of the shell-shaped body of the dental appliance.
  • an embodiment of the present application provides a dental orthodontic appliance, comprising a shell-shaped body provided with a plurality of cavities for accommodating the upper teeth, and the shell-shaped body is also provided to reshape the dental arch
  • the two ends of the upper palate arch are respectively partially connected to the gingival margins on the lingual side of the posterior teeth area on the left and right sides of the shell-shaped body or adjacent to the gingival margin; when the shell-shaped body interacts with the teeth,
  • the upper palate arch induces the buccal and lingual lateral expansion of the suture deposition of the maxillary palatine through deformation, and the teeth in the posterior region move buccal and lingual laterally under the action of the shell-shaped body.
  • the lingual distance between the posterior regions on the left and right sides of the shell-shaped body is different from the lingual distance between the teeth in the posterior regions on the left and right sides.
  • the upper palatal arch is further provided with a reinforcing part that enhances the expansion or contraction of the upper palatal arch.
  • the reinforcing portion is at least one reinforcing ridge provided on the palate arch and consistent with or different from the curvature of the palate.
  • the ridge height of the reinforcing ridge is proportional to the bending resistance section coefficient.
  • the cross-section of the reinforcing ridge along the mesio-distal direction of the sagittal plane is a discontinuous cross-section or a continuous cross-section
  • the cross-section of the reinforcing ridge in the mesio-distal direction is set up and down along the cross-section of the palatine arch, set above the cross-section of the palatine arch, or along the cross-section of the palatine arch The following settings.
  • the cross-section of the reinforcing ridge in the mesio-distal direction is an arc or a semi-closed polygon.
  • the rigidity of the upper palatine arch is greater than the rigidity of the area where the shell-shaped body accommodates the maxillary teeth. And/or, at least one of the thickness, hardness, material and number of layers of the upper palate arch and the shell-shaped body is different.
  • At least a part of the upper palate arch is a multilayer structure; optionally, a reinforcing arch wire is provided between two adjacent layers of the multilayer structure.
  • the palatal arch includes the palatal side and the lingual side, and the distance between the palatal side and the upper palate is 1-2 mm.
  • the upper palate arch is further provided with an adjustment part that adjusts the expansion or contraction of the upper palatine arch; optionally, the adjustment part is an elastic telescopic structure, and the telescopic direction of the elastic telescopic structure For the buccal and lingual direction.
  • the palatal arch and the shell-shaped body are integrally formed.
  • the upper palatine arch is also provided with magnets that expand or contract in the buccal-lingual direction and have opposite magnetic properties.
  • an embodiment of the present application provides a dental instrument kit, including a first shell-shaped dental instrument for the upper jaw and a second shell-shaped dental instrument for the lower jaw.
  • the first shell-shaped dental instrument is described herein.
  • the shell-shaped body of the second shell-shaped dental appliance is provided with a plurality of cavities for accommodating the mandibular teeth.
  • an embodiment of the present application provides a dental orthodontic system, including multiple sets of dental instrument sets, the multiple sets of dental instrument sets include at least one set of dental instrument sets as described in the second aspect herein, so The multiple sets of dental instrument sets have a geometric shape that allows the teeth to be gradually repositioned from the initial position to the target treatment position; optionally, the palatal arches in the multiple sets of dental instrument sets have different curvatures in different treatment stages.
  • the upper palate arch in the dental instrument set is further provided with a reinforcing part that enhances the expansion or contraction of the upper palate arch; optionally, the reinforcing part is provided on the upper palate arch and At least one reinforcement ridge that is consistent with or different from the curvature of the upper palate, and the height of the reinforcement ridge is proportional to the bending resistance section coefficient.
  • the ridge heights of the reinforcing ridges in different dental appliance sets gradually decrease.
  • an embodiment of the present application provides a method for designing orthodontic appliances, including:
  • a digital model of the palatal arch with characteristic information is designed based on the initial digital model of the dental jaw, wherein the characteristic information includes size information and preset position information of the digital model of the palatal arch, and the preset position of the palatal arch
  • the information is that the two ends of the palatine arch are set at the lingual gingival margin or the lingual adjacent to the gingival margin of the posterior region of the initial digital model of the dental jaw;
  • a dental appliance is designed based on the digital model of the dental jaw with the digital model of the upper palatine arch, so that the dental appliance includes a shell-shaped body with a cavity for accommodating the maxillary dentition, and the left and right sides of the dental appliance The palatal arch connected to or adjacent to the gingival margin on the lingual side of the dental area;
  • the upper palatine arch deforms the maxillary palatine suture bone deposits to amplify the buccal and tongue laterally, and the teeth in the posterior region move buccal and tongue laterally under the action of the orthodontic appliance.
  • an embodiment of the present application provides a method for preparing the orthodontic appliance.
  • the preparation method is based on the design method of the orthodontic appliance described in the fourth aspect of this article to prepare the orthodontic appliance.
  • the preparation method Including thermoforming or direct 3D printing.
  • the dental appliance, its design method and preparation method, the dental appliance kit, and the dental appliance system provided in this application have at least the following beneficial effects.
  • the upper palatine arch that reshapes the dental arch shape is provided at or adjacent to the gingival margin of the lingual side of the posterior teeth area on the left and right sides of the shell-shaped body.
  • the arch can induce buccal and lingual lateral expansion of the maxillary palatine seam bone deposition through deformation.
  • the teeth in the posterior region move buccal and lingual laterally under the action of the shell-shaped body.
  • the upper palatine arch can perform buccal and lingual side to the posterior teeth. Expansion or reduction of directional distance.
  • the combination of the palatine arch and the invisible dental appliance not only makes the patient easy to remove and wear, but also has the corresponding corrective effect.
  • the dental appliance set includes an upper jaw tooth appliance and a mandibular tooth appliance, which hold the upper and lower teeth respectively, and can simultaneously correct the upper and lower teeth.
  • the dental orthodontic system includes a series of dental instrument sets, which can not only adjust the tooth arch, but also correct the teeth so that the teeth move from the initial position to the target position.
  • FIG. 1a is a schematic diagram of the structure of the first orthodontic appliance according to Embodiment 1 of the application.
  • Fig. 1b is a schematic structural diagram of the first orthodontic appliance according to Example 1 of the application along the direction A shown in Fig. 1a.
  • Fig. 2 is a schematic diagram of the distance between the first palatal arch and the upper jaw of the user after the user wears the first orthodontic appliance shown in Fig. 1a.
  • FIG. 3 is a schematic structural diagram of a second orthodontic appliance according to Embodiment 2 of the application.
  • Fig. 4a is a schematic diagram of a cross-section along the mesio-distal direction of the structure composed of three arc-shaped reinforcing ridges and the first palatal arch of Example 2 of the present application.
  • Fig. 4b is a schematic diagram of a cross-section along the mesio-distal direction of the structure composed of three arc-shaped reinforcing ridges and the first palatal arch of Example 3 of the present application.
  • Fig. 4c is a schematic diagram of a cross-section along the mesio-distal direction of the structure composed of the continuous reinforcement ridge and the first palatal arch in Example 4 of the present application.
  • Fig. 5a is a schematic structural diagram of a third orthodontic appliance according to Embodiment 5 of the application.
  • Fig. 5b is a schematic structural diagram of the crescent-shaped reinforcing ridge shown in Fig. 5a.
  • FIG. 6 is a schematic structural diagram of a fourth orthodontic appliance according to Embodiment 6 of the application.
  • FIG. 7 is a schematic structural diagram of a fifth orthodontic appliance according to Embodiment 7 of the application.
  • FIG. 8 is a schematic diagram of the structure of a sixth dental orthodontic appliance according to Embodiment 8 of the application.
  • Fig. 9 is a schematic structural diagram of a seventh dental appliance according to Example 9 of the application.
  • Fig. 10 is a flowchart of a method for designing a dental orthodontic appliance according to an embodiment of the application.
  • an embodiment of the present application provides a dental orthodontic appliance, including a shell-shaped body and an upper palatine arch, the upper palatine arch is used to reshape the shape of the dental arch, and the shell-shaped body is used for To accommodate the upper teeth of the user.
  • the "posterior tooth area” mentioned in this example is defined according to the classification of teeth in pages 36-38 of "Introduction to Stomatology" 2nd edition published by Peking University Medical Press, including premolars and molars, marked by FDI The method is shown as 4-8 teeth.
  • Fig. 1a is a schematic structural diagram of a first orthodontic appliance according to Embodiment 1 of the application;
  • Fig. 1b is a schematic structural diagram of the first orthodontic appliance along the A direction shown in Fig. 1a.
  • the two ends of the upper palatine arch are respectively partially connected to the gingival margin on the lingual side of the posterior teeth on the left and right sides of the shell-shaped body or adjacent to the gingival margin.
  • the first orthodontic appliance 1 has a first shell-shaped body 11 and a first palatal arch 12.
  • the first shell-shaped body 11 is used to accommodate the upper teeth of the user, and one end of the first upper palatine arch 12 is connected to the right second premolar 111 and the right second premolar of the first shell body 11
  • a molar 112 corresponds to the lingual gingival margin, and the other end part is connected to the lingual gingival margin of the left second premolar 113 and the left first molar 114 of the first shell-shaped body 11.
  • first shell-shaped body 11 and the first palatal arch 12 are integrally formed. In another embodiment of the present application, the first shell-shaped body 11 and the first upper palatine arch 12 are formed separately, and then the first upper palatal arch 12 is fixedly connected to the first shell-shaped body 11.
  • the two ends of the first upper palatine arch 12 are respectively partially connected to the gingival margins on the lingual side of the posterior teeth on the left and right sides of the first shell-shaped body 11; specifically, the first upper palatine arch 12 is An upper palatine arch 12 extends and connects along the lingual gingival margins of the posterior region on the left and right sides of the first shell-shaped body 11.
  • the two ends of the first upper palatine arch 12 are respectively partially connected to the adjacent gingival margins on the lingual side of the posterior teeth on the left and right sides of the first shell-shaped body 11; specifically, the The first palatal arch 12 is extended and connected along the lingual crowns of the posterior regions on the left and right sides of the first shell-shaped body 11, and the connection point between the first palatal arch 12 and the first shell-shaped body 11 is not At the lingual gingival margin.
  • one end portion of the first upper palatine arch 12 is connected to the gingiva on the lingual side corresponding to any one or more teeth in the left posterior region of the first shell-shaped body 11 At or adjacent to the gingival rim, the other end portion of the first upper palatine arch 12 is connected to the lingual gingival rim corresponding to any one or more teeth in the right posterior region of the first shell-shaped body 11 At or near the gingival margin.
  • the plurality of teeth described herein may be at least two teeth arranged in sequence, or at least two teeth arranged in a discontinuous manner. When there are at least two teeth arranged in a discontinuous manner, the first palate arch 12 At least two.
  • the two ends of the first upper palate arch 12 and the lingual joints on the left and right sides of the first shell-shaped body 11 are opposite to those of the first shell-shaped body 11.
  • the midline of the teeth is symmetrical.
  • Fig. 2 is a schematic diagram of the distance between the first palatal arch and the upper jaw of the user after the user wears the first orthodontic appliance shown in Fig. 1a.
  • the first upper palatal arch 12 includes a lingual side 121 and a palatal side 122.
  • the lingual side 121 faces the user's tongue ( Figure (Not shown in the middle)
  • the palatal side 122 faces the upper jaw 21 of the user.
  • any point on the surface of the palatal side 122 extends in the direction B until it intersects the surface of the upper jaw 21 facing the palatal side 122 at C2, and the palatal side 122
  • the distance from the upper jaw 21 is the distance h1 between C1 and C2.
  • h1 is 1-2 mm
  • the B direction is the direction perpendicular to the tangent plane at point C1.
  • the first shell-shaped body 11 After the user wears the first shell-shaped body 11, the first shell-shaped body 11 interacts with the user’s teeth, and at the same time, the first palatal arch 12 can induce maxillary palatal suture deposition through deformation, and The expansion direction of the suture bone deposition in the maxillary palatine expands toward the cheek-lingual side, and the teeth in the posterior teeth area, under the action of the first shell-shaped body 11, make the teeth contained in the first shell-shaped body 11 face the cheek The tongue moves laterally, so that the first palatal arch 12 can reshape the dental arch shape.
  • the lingual distance between the posterior regions on the left and right sides of the first shell-shaped body 11 is different from the lingual distance between the teeth in the posterior regions on the left and right sides.
  • the teeth corresponding to the posterior regions on the left and right sides refer to the teeth that are respectively accommodated in the cavities of the posterior regions on the left and right sides of the first shell-shaped body 11 after the user wears the first shell-shaped body 11.
  • the first palatal arch 12 can expand the arch.
  • the first upper palatal arch 12 can play a role of arch reduction.
  • At least one of the thickness, hardness, material, and number of layers of the first upper palate 12 and the first shell-shaped body 11 is different, so that the first upper palate 12
  • the rigidity of the first shell-shaped body 11 is greater than the rigidity of the upper jaw teeth area of the user, so that the first upper palate arch 12 generates sufficient force on the first shell-shaped body 11 to produce The effect of expanding and shrinking the bow.
  • FIG. 3 is a schematic structural diagram of a second orthodontic appliance according to Embodiment 2 of the application.
  • the upper palate arch is provided with a reinforcing part that enhances the expansion or contraction of the upper palate arch.
  • the reinforcing part is at least one reinforcing ridge provided on the upper palate arch and consistent with or different from the curvature of the upper palate.
  • the cross section of the reinforcing ridge in the mesio-distal direction of the sagittal plane is a discontinuous section or a continuous section. When it is a continuous section, the reinforcing ridge can generate sufficient force to achieve the effect of expanding or contracting the arch.
  • the main difference between the second orthodontic appliance 3 and the first orthodontic appliance 1 of Example 1 is that: in the second orthodontic appliance 3, the first upper palate arch 12 runs along the mesial and distal
  • a first reinforcement portion is provided in the direction, that is, a first arc-shaped reinforcement ridge 31, a second arc-shaped reinforcement ridge 32, and a third arc-shaped reinforcement ridge 33 arranged in sequence along the E direction.
  • the arrangement direction of each arc-shaped reinforcement ridge is from any point of the junction between one end of the first upper palate arch 12 and the first shell-shaped body 11 along the first upper part where each arc-shaped reinforcement ridge is located.
  • the surface of the palatal arch 12 points to any point of the junction between the other end of the first palatal arch 12 and the first shell-shaped body 11.
  • the first arc-shaped reinforced ridge 31, the second arc-shaped reinforced ridge 32, and the third arc-shaped reinforced ridge 33 are all located on the palatal side 122 of the first palatal arch 12, and are connected to
  • the first palatal arch 12 is integrally formed to facilitate manufacturing. Specifically, it can be prepared by hot press molding or direct 3D printing. When hot press molding is used, the corresponding model can be directly 3D printed, film prepared, and then cut to obtain the required dental instruments.
  • the first arc-shaped reinforced ridge 31, the second arc-shaped reinforced ridge 32, and the third arc-shaped reinforced ridge 33 are respectively formed or integrally formed before being fixedly connected to the first Arch of the palate 12.
  • the reinforcing ridge When the cross section of the reinforcing ridge along the mesial and distal direction of the sagittal plane is a discontinuous section, the reinforcing ridge is arranged on the palatal side of the palatal arch, and a part of the reinforcing ridge is in contact with the upper jaw of the user.
  • first arc-shaped reinforced ridge 31, the second arc-shaped reinforced ridge 32, and the third arc-shaped reinforced ridge 33 are disposed on the palatal side 122, and the first arc-shaped reinforced ridge 31, Partial areas of any one or more of the second arc-shaped reinforcement ridge 32 and the third arc-shaped reinforcement ridge 33 are in contact with the upper jaw of the user, and the contact area with the upper jaw of the user is a plurality of discontinuous areas Area to minimize the irritation to the user’s upper jaw and enhance the wearing experience.
  • the cross-section of the reinforcing ridge in the mesio-distal direction is set up and down along the cross-section of the palatine arch, set above the cross-section of the palatine arch, or set below the cross-section of the palatine arch Set up. More specifically, the cross-section of the reinforcing ridge in the mesio-distal direction is a sinusoidal cross-section set up and down along the cross-section of the upper palatine arch, and the reinforcing ridge is set above or along the cross-section of the upper palatine arch.
  • the upper palatal arch is arranged below the transverse section, and only a strengthening ridge is arranged on the upper side or the lower side.
  • the cross section of a single reinforcing ridge in the mesial and distal direction is an arc or a semi-closed polygon. More specifically, the shape of the cross section is any one or more of sawtooth, wave, ellipse and rectangular arc.
  • Fig. 4a is a schematic diagram of a cross-section along the mesio-distal direction of the structure composed of three arc-shaped reinforcing ridges and the first palatal arch of Example 2 of the present application.
  • Fig. 4b is a schematic diagram of a cross-section along the mesio-distal direction of the structure composed of three arc-shaped reinforcing ridges and the first palatal arch of Example 3 of the present application.
  • Fig. 4c is a schematic diagram of a cross-section along the mesio-distal direction of the structure composed of the continuous reinforcement ridge and the first palatal arch in Example 4 of the present application.
  • the cross section of the first reinforcing part formed by the first arc-shaped reinforcing ridge 31, the second arc-shaped reinforcing ridge 32 and the third arc-shaped reinforcing ridge 33 along the mesio-distal direction is a discontinuous cross-section,
  • the shape of the discontinuous cross-section is a semi-closed rectangle with rounded corners.
  • the first arc-shaped reinforced ridge 31, the second arc-shaped reinforced ridge 32, and the third arc-shaped reinforced ridge 33 are all set along the cross section of the first palatal arch 12 and above and are all set on one side
  • the bulging direction of the reinforced ridge is from the lingual side to the palatal side.
  • the fourth arc-shaped reinforced ridge 41, the fifth arc-shaped reinforced ridge 42, and the sixth arc-shaped reinforced ridge 43 are arranged in the buccal-lingual direction, respectively, and the first arc-shaped reinforced ridge 31,
  • the arrangement of the second arc-shaped reinforced ridge 32 and the third arc-shaped reinforced ridge 33 along the buccal-lingual direction is basically the same, the fourth arc-shaped reinforced ridge 41, the fifth arc-shaped reinforced ridge 42 and
  • the cross section of the second reinforcing part formed by the sixth arc-shaped reinforcing ridge 43 along the mesial and distal direction is a discontinuous cross section, and the shape of the discontinuous cross section is a semi-closed ring shape.
  • the fourth arc-shaped reinforced ridge 41, the fifth arc-shaped reinforced ridge 42 and the sixth arc-shaped reinforced ridge 43 are all set along the transverse section of the first palatal arch 12 and are all set on one side
  • the bulging direction of the reinforced ridge is from the palatal side to the lingual side.
  • the arrangement of the continuous reinforcement ridge 44 along the buccal-lingual direction is compared with the first arc-shaped reinforcement ridge 31, the second arc-shaped reinforcement ridge 32, and the third arc-shaped reinforcement ridge, respectively.
  • the arrangement of any one of 33 along the buccal and lingual direction is basically the same.
  • the section of the continuous reinforcement ridge 44 along the mesio-distal direction is a continuous section, and the shape of the continuous section is a wave shape.
  • the continuous reinforcing ridge 44 is a reinforcing ridge continuously arranged up and down along the cross section of the first palatal arch 12.
  • the bending strength of the first palatal arch 12 is maximized, and the utilization rate of materials is also maximized.
  • the vertical distance from the point of the furthest distance between each reinforcing ridge from the connection of the first palatal arch 12 and the first shell-shaped body 11 to the cross-section of the first palatal arch 12 is defined as Ridge is high.
  • the moment M on any section of the first arc-shaped reinforcement ridge 31, the second arc-shaped reinforcement ridge 32 and the third arc-shaped reinforcement ridge 33 is proportional to the bending section coefficient W.
  • the constant ⁇ is M/W
  • the bending section coefficient W F ⁇ h/ ⁇ .
  • the bending section coefficient W b ⁇ h 2 /6, to ensure that the square of the height of different sections increases linearly, so as to ensure equal stress.
  • the rigidity of the first palatal arch 12 can be fully exerted.
  • the first arc-shaped reinforced ridge 31, the second arc-shaped reinforced ridge 32, and the third arc-shaped reinforced ridge 33 when the user wears the second orthodontic appliance 3, the first arc-shaped reinforced ridge 31, the second arc-shaped reinforced ridge 32, and the third arc-shaped reinforced ridge 33
  • the curvature of any one of the corresponding curvatures of the upper jaw of the user is the same or different.
  • the first arc-shaped reinforced ridge 31, the second arc-shaped reinforced ridge 32, and the third arc-shaped reinforced ridge 33 are all disposed on the first upper palatine arch 12 Palatal side 122. Any one of the first arc-shaped reinforced ridge 31, the second arc-shaped reinforced ridge 32, and the third arc-shaped reinforced ridge 33 does not contact the upper jaw of the user, so as to avoid the discomfort of wearing by the patient after contact .
  • the reinforcing ridges in the first arc-shaped reinforced ridge 31, the second arc-shaped reinforced ridge 32, and the third arc-shaped reinforced ridge 33, two adjacent arc-shaped reinforced ridges are along the The distances in the mesial and distal directions are the same or different, that is, the reinforcing ridges can be uniformly arranged on the upper palate arch, or non-uniformly arranged on the upper palate arch.
  • Fig. 5a is a schematic structural diagram of a third orthodontic appliance according to Embodiment 5 of the application;
  • Fig. 5b is a structural schematic diagram of the crescent-shaped reinforcing ridge shown in Fig. 5a.
  • the main difference between the third orthodontic appliance 5 and the first orthodontic appliance 1 of embodiment 1 is that: the lingual side 121 of the first palatal arch 12 is provided with a number of crescent-shaped reinforcing ridges 51 to constitute the reinforcement part of the third dental appliance 5.
  • the single crescent-shaped reinforcing ridge 51 points along any point of the first edge 123 of the first upper palatal arch 12 along the surface of the first upper palatal arch 12 where the crescent-shaped reinforcing ridge 51 is located.
  • An arbitrary point of the second edge 124 of the upper palatine arch 12; the arrangement direction of the plurality of crescent-shaped reinforcing ridges 51 is arranged in the buccal and lingual direction.
  • the crescent-shaped reinforcing ridge 51 is formed by extending and intersecting an inner concave curved surface 511 and an outer convex curved surface 512.
  • the cross-section of the crescent-shaped reinforcing ridge 51 along the buccal-lingual direction is a non-continuous cross-section, and the shape of the non-continuous cross-section is a semi-closed triangle.
  • FIG. 6 is a schematic structural diagram of a fourth orthodontic appliance according to Embodiment 6 of the application.
  • the fourth orthodontic appliance 6 has a second palatal arch 61, and the main difference between the second palatal arch 61 and the first palatal arch 12 of Embodiment 2 is: the second palatal arch
  • the middle part of the bow 61 has a curved bow 611 that is further curved toward the upper jaw, so that the degree of curvature of the second upper palatal arch 61 varies unevenly along the setting direction.
  • the second upper palatine arch 61 is provided with an irregular arc-shaped reinforced ridge 62, and the difference between the irregular arc-shaped reinforced ridge 62 and the third arc-shaped reinforced ridge 33 is: the irregular arc-shaped reinforced ridge
  • the middle portion of the ridge 62 has a curved arc ridge 621 that is further curved toward the upper jaw to adapt to the degree of curvature of the curved bow 611.
  • the upper palate arch is provided with an adjustment part for adjusting the expansion or contraction of the upper palate arch.
  • the adjustment part is an elastic expansion and contraction structure, which can be adjusted according to the patient's treatment needs.
  • FIG. 7 is a schematic structural diagram of a fifth orthodontic appliance according to Embodiment 7 of the application.
  • the main difference between the fifth orthodontic appliance 7 and the first orthodontic appliance 1 of embodiment 1 is that the third upper palatal arch 71 of the fifth orthodontic appliance 7 consists of a first short arch 711, The first elastic telescopic structure 712 and the second short arch 713 are sequentially connected to make the third palatal arch 71 bend toward the upper jaw of the user, and the telescopic direction of the first elastic telescopic structure 712 is the buccal and lingual direction , Which is the X1X2 direction shown in Figure 7.
  • the first elastic telescopic structure 712 is symmetrical along the midline of the tooth.
  • FIG. 8 is a schematic diagram of the structure of a sixth dental orthodontic appliance according to Embodiment 8 of the application.
  • the upper palate arch of the sixth dental appliance 8 consists of a second elastic telescopic structure 84 and a third
  • the elastic telescopic structure 85 is divided into a third short bow 81, a fourth short bow 82 and a fifth short bow 83.
  • the expansion and contraction directions of the second elastic stretch structure 84 and the third elastic stretch structure 85 are both buccal and lingual directions.
  • the second elastic telescopic structure 84 and the third elastic telescopic structure 85 are symmetrical along the midline of the tooth.
  • the upper palatine arch is provided with magnets that expand or contract in the buccal-lingual direction and have opposite magnetic properties.
  • the magnet please refer to the arrangement of the elastic telescopic structure in FIG. 7 and FIG. 8.
  • the elastic telescopic structure may also be an elastic body, such as a spring.
  • At least a part of the palatal arch is a multilayer structure. Reinforcing arch wires are arranged between two adjacent layers of the multilayer structure.
  • Fig. 9 is a schematic structural diagram of a seventh dental appliance according to Example 9 of the application.
  • the main difference between the seventh orthodontic appliance 9 and the first orthodontic appliance 1 of embodiment 1 is that one end of the first upper palatal arch 12 is connected to the first shell-shaped body 11
  • the right second premolar 111 and the right first premolar 115 correspond to the gingival margin on the lingual side, and the other end is connected to the left second premolar 113 and the left second premolar of the first shell-shaped body 11
  • the left first premolar 116 corresponds to the gingival margin on the lingual side.
  • An embodiment of the present application also provides a dental instrument kit, which includes a first shell-shaped dental instrument and a second shell-shaped dental instrument.
  • the first shell-shaped orthodontic appliance is the orthodontic appliance provided by the above-mentioned embodiment of the application, and its specific implementation form may be the first orthodontic appliance 1 and the second orthodontic appliance 3 described above. , Any one of the third orthodontic appliance 5, the fourth orthodontic appliance 6, the fifth orthodontic appliance 7, the sixth orthodontic appliance 8, and the seventh orthodontic appliance 9 .
  • the shell-shaped body of the second shell-shaped dental instrument is provided with a plurality of cavities for accommodating the mandibular teeth.
  • An embodiment of the present application also provides a dental treatment system, including multiple sets of dental instrument sets, the multiple sets of dental instrument sets include at least one set of the dental instrument sets described in the above-mentioned embodiments of the present application, and have The teeth are gradually repositioned from the initial position to the geometric shape of the target orthodontic position, so that the tooth can be adjusted while the arch is adjusted.
  • the dental treatment system includes a first dental instrument set applied to the first stage of correction and a second dental instrument set applied to the second stage of correction, and the second stage of correction is in time. After the first stage of correction.
  • the shell-shaped body for accommodating the mandibular teeth in the second dental instrument set has a different geometric shape from the shell-shaped body for accommodating the mandibular teeth in the first dental instrument set, so that the lower jaw The teeth are gradually positioned to the target correction position to be achieved in the second correction stage to achieve the correction effect.
  • the shell-shaped body for accommodating the maxillary teeth in the second dental instrument set has a different geometric shape from the shell-shaped body for accommodating the maxillary teeth in the first dental instrument set, so that the upper teeth are gradually positioned The target correction position to be reached in the second correction stage.
  • the curvature of the upper palatine arch connected to the shell-shaped body for accommodating the maxillary teeth in the second dental instrument set is set by the shell-shaped body for accommodating the maxillary teeth in the first dental instrument set.
  • the curvature of the connected palatal arch is different, and its curvature is adjusted according to the needs of correction.
  • first orthodontic appliance 1 when it is necessary to achieve the effect of arch expansion through the first orthodontic stage and the second orthodontic stage, it is used in the second orthodontic process
  • the curvature of the first upper palate arch 12 of the first orthodontic appliance 1 is greater than the curvature of the first upper palatine arch 12 used in the first orthodontic process.
  • the curved arc of 12 is smaller than the curved arc of the first palatal arch 12 used in the first correction process.
  • the upper palate arch in the dental instrument set is further provided with a reinforcing part that enhances the expansion or contraction of the upper palate arch, and the reinforcing part is provided on the upper palate arch and is connected to the upper palate At least one reinforcement ridge with the same or different curvature of the palate.
  • the height of the reinforcement ridges in different dental instrument sets gradually decreases.
  • the arch expansion or contraction reaches a certain level, only the expansion is required. The result of the bow or contraction can be maintained, so the height of the strengthened ridge can be adjusted according to the needs of the correction process.
  • reinforcing ridge For the specific realization form of the reinforcing ridge, please refer to the description of the reinforcing part of any one of the second orthodontic appliance 3, the third orthodontic appliance 5, and the fourth orthodontic appliance 6 above. I won’t go into details here.
  • Fig. 10 shows a flowchart of the above-mentioned dental orthodontic appliance design method according to an embodiment of the present application.
  • the design method of the first orthodontic appliance includes:
  • S2 Design a digital model of the palatine arch with characteristic information based on the initial digital model of the dental jaw;
  • S3 Generate a digital dental model with a digital model of the upper palate based on the initial digital model of the dental jaw and the digital model of the upper palate arch with characteristic information;
  • S4 Design a dental orthodontic appliance based on the dental jaw digital model with the digital model of the palatine arch.
  • step S1 an intraoral scan is performed on the user, and the scan range covers the upper jaw and the upper dental arch of the user to obtain the initial digital model of the dental jaw including the digital model of the upper palate.
  • a medical silicone material is used to take an intraoral impression of a user to obtain a solid impression model
  • the solid impression model includes a palatal impression and a maxillary impression
  • the solid impression model is converted into
  • the solid male model is scanned to obtain the initial dental jaw digital model including the digital model of the upper palate.
  • the characteristic information includes size information and preset position information of the digital model of the palatal arch.
  • the preset position information of the upper palatine arch is that both ends of the upper palatine arch are set at the lingual gingival margin of the posterior region of the initial digital model of the dental jaw or adjacent to the gingival margin of the tongue.
  • the digital model of the upper palate confirms the user's correction needs according to the corresponding initial digital model of the dental jaw and other necessary medical information of the user, and then formulates at least one correction cycle according to the correction needs
  • the size information and preset position information of the upper palatal arch digital model are formulated based on the correction effect to be achieved in the next correction cycle.
  • Designing the preset position information of the upper palate arch is that the two ends of the upper palatal arch are set at the lingual gingival margin or the lingual adjacent to the gingival margin of the posterior tooth area of the initial dental jaw digital model, which is beneficial to the dental appliance
  • the upper palatine arch can induce buccal and lingual lateral expansion of the suture deposition of the maxillary palatine through deformation, and the teeth in the posterior teeth move sideways under the action of the dental appliance, and the upper palatal arch is opposed to
  • the teeth in the posterior area can be enlarged or reduced in the buccal and lingual direction to achieve the effect of arch reduction or expansion.
  • step S3 based on the initial digital model of the dental jaw and the digital model of the upper palate arch with the characteristic information, a digital model of the dental jaw with the digital model of the upper palate arch is generated; so that the digital model of the dental jaw has the upper palate
  • the digital model of the bow provides a model basis for the subsequent design of dental appliances.
  • the dental appliance designed based on the digital model of the dental jaw with the digital model of the upper palatine arch includes a shell-shaped body with a cavity for accommodating the maxillary dentition, and the left and right sides of the dental appliance The palatal arch connected to or adjacent to the gingival margin on the lingual side of the dental area.
  • an embodiment of the present application also provides a preparation method of the above-mentioned orthodontic appliance.
  • the preparation method is based on the corresponding preparation of the orthodontic appliance designed based on the design method of the orthodontic appliance.
  • the preparation method includes thermal Compression molding or direct 3D printing.

Abstract

一种牙科矫治器械及其设计方法和制备方法。牙科矫治器械包括壳状本体(11)，壳状本体(11)设置有若干容纳上颌牙齿的腔体，壳状本体(11)还设有使牙弓形态重塑的上腭弓(12)，上腭弓(12)的两端分别部分连接于壳状本体(11)左右两侧后牙区舌侧的龈缘处或邻近龈缘处；壳状本体(11)与牙齿作用时，上腭弓(12)通过形变诱发上颌腭中缝骨沉积颊舌侧向扩增，后牙区牙齿在与壳状本体(11)的作用下颊舌侧向移动。

Description

牙科矫治器械及其设计方法和制备方法
相关申请的交叉引用
本申请要求享有于2019年12月31日递交的中国专利申请201922484327.1和201911422575.1的优先权。它们的全部内容在此通过援引全部并入本文。
技术领域
本申请涉及医疗器械技术领域，尤其涉及一种牙科矫治器械及其设计方法和制备方法。
背景技术
在正畸医生的接诊患者中，牙齿拥挤是常见的临床表现，虽然目前常用的矫治设计为拔牙，邻面去釉，推磨牙向远中或者唇倾牙齿等方法提供间隙。但还有一部分患者，拥挤主要表现为牙弓宽度不足，在牙弓宽度打开后，拥挤就会得到改善。扩弓治疗是牙弓宽度不调的常见矫治方法，常见的扩弓方法有固定扩弓器扩弓，四眼簧扩弓，骑士弓扩弓，种植钉辅助扩弓，外科手术辅助扩弓等。隐形矫治器也有一定的扩弓能力，以往有研究显示将螺旋扩弓簧结合隐形矫治器进行扩弓，也取得了不错的疗效。
然而，以上矫治方式大都为固定矫治采用的方式，这种方式不仅对患者口腔的损伤较大，还使患者的体验感和舒适感较差。另外，在进行上述矫治过程操作时，需要在患者使用时将扳手伸进口内装置小孔内进行扩弓操作，这大大增加了患者扩弓的不便，也容易在操作时小扳手掉入口内造成呼吸道阻塞等风险。传统的四眼簧扩弓器等因为其金属部件容易压迫粘膜，常常给患者造成不适感。隐形牙齿矫治器由于其佩戴舒适可摘戴，并且美观，被越来越多的人选择，隐形牙齿矫治器本身也具有部分扩弓的作用，但由于扩弓力较小，扩弓效果差，磨牙要依次前后扩弓，使得扩弓周期延长。因此，如何将传统扩弓功能矫治效果与隐形矫治器结合并能够达到相同或更佳的矫治效果，或者对隐形矫治器进行结构改进以达到扩弓矫治器相同或更佳的矫治效果，是亟待解决的问题。
因此，有必要开发新型的牙科矫治器械以解决上述存在的问题。
发明内容
本申请部分实施例提供一种牙科矫治器械及其设计方法和制备方法、牙科器械套 组及牙科矫治系统，所述牙科矫治器械的上颚弓能够通过形变诱发上颌腭中缝骨沉积、颊舌侧向扩增，使得后牙区牙齿能够在与所述牙科矫治器械的壳状本体的作用下颊舌侧向移动。
第一方面，本申请一实施例提供一种牙科矫治器械，包括壳状本体，所述壳状本体设置有若干容纳上颌牙齿的腔体，所述壳状本体还设有使牙弓形态重塑的上腭弓，所述上腭弓的两端分别部分连接于所述壳状本体左右两侧后牙区舌侧的龈缘处或邻近龈缘处；所述壳状本体与牙齿作用时，所述上腭弓通过形变诱发上颌腭中缝骨沉积颊舌侧向扩增，后牙区牙齿在与所述壳状本体的作用下颊舌侧向移动。
在本申请一实施例中，所述壳状本体左右两侧后牙区的舌侧间距与对应左右两侧后牙区牙齿舌侧间距不同。
在本申请一实施例中，所述上腭弓还设有增强所述上腭弓扩张或收缩的加强部。任选的，所述加强部为设于所述上腭弓上且与上腭的弯曲弧度一致或不同的至少一个加强脊。
在本申请一实施例中，所述加强脊的脊高与抗弯截面系数成正比。
在本申请一实施例中，所述加强脊沿矢状面近远中方向的截面为间断截面或连续截面；
在本申请一实施例中，所述加强脊横断面近远中方向的截面沿所述上腭弓横断面上下设置、沿所述上腭弓横断面以上设置或沿所述上腭弓横断面以下设置。
在本申请一实施例中，所述加强脊横断面近远中方向的截面为弧形或半封闭的多边形。
在本申请一实施例中，所述上腭弓的刚度大于所述壳状本体容纳上颌牙齿区域的刚度。和/或，所述上腭弓与所述壳状本体的厚度、硬度、材料和层数中的至少一种不同。
在本申请一实施例中，所述上腭弓的至少一部分为多层结构；任选的，所述多层结构的相邻两层之间设有加强弓丝。
在本申请一实施例中，所述上腭弓包括腭侧面和舌侧面，所述腭侧面与上腭间的距离为1-2mm。
在本申请一实施例中，所述上腭弓还设有调节所述上腭弓扩张或收缩的调节部；任选的，所述调节部为弹性伸缩结构，所述弹性伸缩结构的伸缩方向为颊舌侧方向。
在本申请一实施例中，所述上腭弓与所述壳状本体为一体成型结构。
在本申请一实施例中，所述上腭弓还设有颊舌侧方向扩张或收缩的且磁性相反的磁体。
第二方面，本申请一实施例提供一种牙科器械套组，包括用于上颌的第一壳状牙科器械和用于下颌的第二壳状牙科器械，所述第一壳状牙科器械为本文第一方面所述的牙科矫治器械，所述第二壳状牙科器械的壳状本体设置有若干容纳下颌牙齿的腔体。
第三方面，本申请一实施例提供一种牙科矫治系统，包括多组牙科器械套组，所述多组牙科器械套组包括至少一组如本文第二方面所述的牙科器械套组，所述多组牙科器械套组具有使牙齿从初始位置逐渐重新定位至目标矫治位置的几何形状；任选的，所述多组牙科器械套组中的上腭弓在不同的矫治阶段的弯曲弧度不同；任选的，所述牙科器械套组中的上腭弓还设有增强所述上腭弓扩张或收缩的加强部；任选的，所述加强部为设于所述上腭弓上且与上腭的弯曲弧度一致或不同的至少一个加强脊，所述加强脊的脊高与抗弯截面系数成正比。
在本申请一实施例中，随着矫治过程中的进行，不同牙科器械套组中的加强脊的脊高逐渐减小。
第四方面，本申请一实施例提供一种牙科矫治器械的设计方法，包括：
获取初始牙颌数字模型，所述初始牙颌数字模型包括上腭部数字模型；
基于所述初始牙颌数字模型设计具有特征信息的上腭弓数字模型，其中所述特征信息包括所述上腭弓数字模型的尺寸信息及预设位置信息，所述上腭弓的预设位置信息为上腭弓的两端设于所述初始牙颌数字模型后牙区舌侧龈缘处或舌侧邻近龈缘处；
基于所述初始牙颌数字模型和所述具有特征信息的上腭弓数字模型，生成具有上腭弓数字模型的牙颌数字模型；
基于所述具有上腭弓数字模型的牙颌数字模型设计牙科矫治器械，以使所述牙科矫治器械包括具有容纳上颌牙列的空腔的壳状本体，及所述牙科矫治器械左右两侧后牙区舌侧龈缘处或邻近龈缘处连接设置的上腭弓；
所述牙科矫治器械与牙齿作用时，所述上腭弓通过形变使上颌腭中缝骨沉积颊舌侧向扩增，后牙区牙齿在与所述牙科矫治器械的作用下颊舌侧向移动。
第五方面，本申请一实施例提供一种牙科矫治器械的制备方法，所述制备方法是基于本文第四方面所述的牙科矫治器械的设计方法来进行牙科矫治器械的制备，所述制备方法包括热压成型或直接3D打印。
本申请提供的牙科矫治器械及其设计方法和制备方法、牙科器械套组及牙科矫治系统，至少具有下述有益效果。通过在所述壳状本体左右两侧后牙区舌侧的龈缘处或邻近龈缘处设置使牙弓形态重塑的上腭弓，所述壳状本体与牙齿作用时，所述上腭弓能够通过形变诱发上颌腭中缝骨沉积颊舌侧向扩增，后牙区牙齿在与所述壳状本体的作用下颊舌侧 向移动，上腭弓对后牙区牙齿可以进行颊舌侧方向距离的扩增或缩减。上腭弓与隐形牙齿矫治器结合不仅使患者摘戴方便和佩戴舒适，还能够具有相应的矫治效果。牙科器械套组包括上颌牙齿矫治器和下颌牙齿矫治器，分别容纳上颌牙齿和下颌牙齿，能够对上下颌牙齿同时进行矫治。牙科矫治系统包括一系列的牙科器械套组，不仅能够对牙齿弓形进行调整，同时还能够对牙齿进行矫治，使得牙齿由初始位置向目标位置移动。
附图说明
图1a为本申请实施例1的第一牙科矫治器械的结构示意图。
图1b为本申请实施例1的第一牙科矫治器械沿图1a所示的A方向的结构示意图。
图2为使用者佩戴图1a所示的第一牙科矫治器械后，第一上腭弓与使用者上颚之间距离的示意图。
图3为本申请实施例2的第二牙科矫治器械的结构示意图。
图4a为本申请实施例2的三个弧形加强脊和第一上腭弓组成的结构沿近远中方向的截面的示意图。
图4b为本申请实施例3的三个弧形加强脊和第一上腭弓组成的结构沿近远中方向的截面的示意图。
图4c为本申请实施例4的连续加强脊与第一上腭弓组成的结构沿近远中方向的截面的示意图。
图5a为本申请实施例5的第三牙科矫治器械的结构示意图。
图5b为图5a所示的月牙形加强脊的结构示意图。
图6为本申请实施例6的第四牙科矫治器械的结构示意图。
图7为本申请实施例7的第五牙科矫治器械的结构示意图。
图8为本申请实施例8的第六牙科矫治器械的结构示意图。
图9为本申请实施例9的第七牙科矫治器械的结构示意图。
图10为本申请实施例的牙科矫治器械的设计方法流程图。
具体实施方式
为使本申请的目的、技术方案和优点更加清楚，下面将结合本申请的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。除非另有定义， 此处使用的技术术语或者科学术语应当为本申请所属领域内具有一般技能的人士所理解的通常意义。本文中使用的“包括”等类似的词语意指出现该词前面的元件或者物件涵盖出现在该词后面列举的元件或者物件及其等同，而不排除其他元件或者物件。
针对现有技术存在的问题，本申请一实施例提供了一种牙科矫治器械，包括壳状本体和上腭弓，所述上腭弓用于使牙弓形态重塑，所述壳状本体用于容纳使用者的上颌牙齿。
本实施例中提及的“后牙区”根据北京大学医学出版社出版的《口腔医学导论》第2版第36-38页中对于牙齿的分类进行定义，包括前磨牙以及磨牙，以FDI标记法显示为4-8的牙齿。
图1a为本申请实施例1的第一牙科矫治器械的结构示意图；图1b为所述第一牙科矫治器械沿图1a所示的A方向的结构示意图。
本申请一实施例中，所述上腭弓的两端分别部分连接于所述壳状本体左右两侧后牙区舌侧的龈缘处或邻近龈缘处。参照图1a和图1b，第一牙科矫治器械1具有第一壳状本体11和第一上腭弓12。所述第一壳状本体11用于容纳使用者的上颌牙齿，所述第一上腭弓12的一端部分连接于所述第一壳状本体11的右侧第二前磨牙111和右侧第一磨牙112相对应舌侧的龈缘处，另一端部分连接于所述第一壳状本体11的左侧第二前磨牙113和左侧第一磨牙114相对应舌侧的龈缘处。
本申请一实施例中，所述第一壳状本体11与所述第一上腭弓12一体化成型。本申请另一实施例中，所述第一壳状本体11与所述第一上腭弓12分别成型，然后将所述第一上腭弓12固定连接于所述第一壳状本体11。
本申请一实施例中，所述第一上腭弓12的两端分别部分连接于所述第一壳状本体11左右两侧后牙区舌侧的龈缘处；具体的说，所述第一上腭弓12沿所述第一壳状本体11左右两侧后牙区舌侧龈缘处延伸连接。
本申请一实施例中，所述第一上腭弓12的两端分别部分连接于所述第一壳状本体11左右两侧后牙区舌侧的邻近龈缘处；具体的说，所述第一上腭弓12沿所述第一壳状本体11左右两侧后牙区舌侧牙冠延伸连接，且所述第一上腭弓12与所述第一壳状本体11的连接处未处于舌侧龈缘处。
本申请一具体实施例中，所述第一上腭弓12的一端部分连接于所述第一壳状本体11的左侧后牙区的任意一颗或多颗牙齿相对应的舌侧的龈缘处或邻近龈缘，所述第一上腭弓12的另一端部分连接于所述第一壳状本体11的右侧后牙区的任意一颗或多颗牙齿相对应的舌侧龈缘处或邻近龈缘。这里所述的多颗牙齿可以是顺次排列的至少两颗牙齿，也可 以是不连续排列的至少两颗牙齿，当为不连续排列的至少两颗牙齿时，所述第一上腭弓12至少为两个。
本申请一具体实施例中，所述第一上腭弓12的两端分别与所述第一壳状本体11左右两侧后牙区舌侧的接合处相对所述第一壳状本体11的牙中线对称。
图2为使用者佩戴图1a所示的第一牙科矫治器械后，第一上腭弓与使用者上颚之间距离的示意图。
参照图1a和图2，所述第一上腭弓12包括舌侧面121和腭侧面122，使用者佩戴所述第一壳状本体11后，所述舌侧面121朝向使用者的舌部(图中未标示)，所述腭侧面122朝向使用者的上颚21。
本申请一实施例中，参照图2，所述腭侧面122表面的任意一点，如C1沿B方向延伸直至与所述上颚21朝向所述腭侧面122的表面相交于C2，所述腭侧面122与所述上颚21之间的距离为C1与C2之间的距离h1。具体的，h1为1-2mm，B方向为垂直于C1点的切面的方向。
使用者佩戴所述第一壳状本体11后，所述第一壳状本体11与使用者的牙齿相互作用，同时所述第一上腭弓12能够通过形变诱发上颌腭中缝骨沉积，且所述上颌腭中缝骨沉积的扩增方向朝向颊舌侧向扩增，后牙区牙齿在与所述第一壳状本体11的作用下使收容于所述第一壳状本体11的牙齿朝向颊舌侧向移动，从而使所述第一上腭弓12实现对牙弓形态的重塑。
本申请一实施例中，所述第一壳状本体11左右两侧后牙区的舌侧间距与对应左右两侧后牙区牙齿舌侧间距不同。对应左右两侧后牙区牙齿指使用者佩戴所述第一壳状本体11后，分别容纳于所述第一壳状本体11的左右两侧后牙区腔体中的牙齿。
当所述第一壳状本体11左右两侧后牙区的舌侧间距大于对应左右两侧后牙区牙齿舌侧间距，所述第一壳状本体11与使用者的牙齿相互作用的同时，所述第一上腭弓12能够起到扩弓作用。
当所述第一壳状本体11左右两侧后牙区的舌侧间距小于对应左右两侧后牙区牙齿舌侧间距，所述第一壳状本体11与使用者的牙齿相互作用的同时，所述第一上腭弓12能够起到缩弓作用。
本申请一实施例中，所述第一上腭弓12与所述第一壳状本体11的厚度、硬度、材料和层数中的至少一种不同，以使所述第一上腭弓12的刚度大于所述第一壳状本体11的用于容纳使用者的上颌牙齿区域的刚度，以使所述第一上腭弓12对所述第一壳状本体11产生足够的作用力，产生扩弓和缩弓的效果。
图3为本申请实施例2的第二牙科矫治器械的结构示意图。
本申请一实施例中，所述上腭弓设有增强所述上腭弓扩张或收缩的加强部。所述加强部为设于所述上腭弓上且与上腭的弯曲弧度一致或不同的至少一个加强脊。所述加强脊沿矢状面近远中方向的截面为间断截面或连续截面，为连续截面时，所述加强脊能够产生充足的作用力，从而达到扩弓或缩弓的效果。
参照图3，第二牙科矫治器械3与实施例1的所述第一牙科矫治器械1的主要区别在于：所述第二牙科矫治器械3中，所述第一上腭弓12沿近远中方向设有第一加强部，即沿E方向依次排列的第一弧形加强脊31、第二弧形加强脊32和第三弧形加强脊33。每个弧形加强脊的排布方向从所述第一上腭弓12的一端与所述第一壳状本体11的接合处的任意一点沿每个弧形加强脊所在的所述第一上腭弓12的表面指向所述第一上腭弓12的另一端与所述第一壳状本体11的接合处的任意一点。
参照图3，所述第一弧形加强脊31、所述第二弧形加强脊32和所述第三弧形加强脊33均位于所述第一上腭弓12的腭侧面122，并与所述第一上腭弓12一体化成型，以方便制作。具体的可以采用热压成型或直接3D打印的方式制备，其中采用热压成型时，可以直接3D打印出相应的模型后，压膜制备，之后进行切割得到需要的牙科器械。
本申请一实施例中，所述第一弧形加强脊31、所述第二弧形加强脊32和所述第三弧形加强脊33分别成型或一体成型后再固定连接于所述第一上腭弓12。
当所述加强脊沿矢状面近远中方向的截面为间断截面，所述加强脊设置于所述上腭弓的腭侧面，所述加强脊的部分区域与使用者的上颚相接触。具体的，所述第一弧形加强脊31、所述第二弧形加强脊32和所述第三弧形加强脊33设置于所述腭侧面122，所述第一弧形加强脊31、所述第二弧形加强脊32和所述第三弧形加强脊33的任意一种或多种的部分区域与使用者的上颚相接触，与使用者上颚相接触的区域为多个非连续区域，以尽量减轻对使用者上颚的刺激，提升佩戴体验。
本申请一实施例中，所述加强脊横断面近远中方向的截面沿所述上腭弓横断面上下设置、沿所述上腭弓横断面以上设置或沿所述上腭弓横断面以下设置。更具体的说，所述加强脊横断面近远中方向的截面为沿所述上腭弓横断面上下设置的正弦形状截面，所述加强脊为沿所述上腭弓横断面以上设置或沿所述上腭弓横断面以下设置，仅为上侧或下侧单侧设置的加强脊。
本申请一实施例中，单个所述加强脊横断面近远中方向的截面为弧形或半封闭的多边形。更具体的说，所述截面的形状为锯齿形、波浪形、椭圆形和矩形圆弧中的任意一种或多种。
图4a为本申请实施例2的三个弧形加强脊和第一上腭弓组成的结构沿近远中方向的截面的示意图。图4b为本申请实施例3的三个弧形加强脊和第一上腭弓组成的结构沿近远中方向的截面的示意图。图4c为本申请实施例4的连续加强脊与第一上腭弓组成的结构沿近远中方向的截面的示意图。
参照图4a，所述第一弧形加强脊31、所述第二弧形加强脊32和所述第三弧形加强脊33构成的第一加强部沿近远中方向的截面为间断截面，所述间断截面的形状为半封闭的圆角矩形。所述第一弧形加强脊31、所述第二弧形加强脊32和所述第三弧形加强脊33均为沿所述第一上腭弓12横断面以上设置且均为单侧设置的加强脊，其凸起方向为由舌侧向腭侧凸起方向。
参照图3和图4b，第四弧形加强脊41、第五弧形加强脊42和第六弧形加强脊43沿颊舌侧方向的设置情况分别与所述第一弧形加强脊31、所述第二弧形加强脊32以及所述第三弧形加强脊33沿颊舌侧方向的设置情况基本相同，所述第四弧形加强脊41、所述第五弧形加强脊42和所述第六弧形加强脊43构成的第二加强部沿近远中方向的截面为间断截面，所述间断截面的形状为半封闭的环形。所述第四弧形加强脊41、所述第五弧形加强脊42和所述第六弧形加强脊43均为沿所述第一上腭弓12横断面以下设置且均为单侧设置的加强脊，其凸起方向为由腭侧向舌侧凸起方向。
参照图3和图4c，连续加强脊44沿颊舌侧方向的设置情况与分别与所述第一弧形加强脊31、所述第二弧形加强脊32以及所述第三弧形加强脊33中的任意一种沿颊舌侧方向的设置情况基本相同。所述连续加强脊44沿近远中方向的截面为连续截面，所述连续截面的形状为波浪形。所述连续加强脊44为沿所述第一上腭弓12横断面上下连续设置的加强脊。
参照图3和图4a，当使用者佩戴所述第二牙科矫治器械3后，所述第一壳状本体11作用于使用者的牙齿，使所述第一上腭弓12的两端分别承受方向相反的力F，所述第一上腭弓12表面上任一点至受力点的垂直距离为H。由于所述第一上腭弓12表面上任一点至受力点的垂直距离为H不同，各点所承受的力矩M也不同。具体的，由于M＝F×H，随着所述第一上腭弓12上任一点至受力点的垂直距离H的增加，M线性增加。
为保证所述第一上腭弓12截面上的最大应力相等或相近，以最大程度提高所述第一上腭弓12的抗弯曲强度，同时也最大限度的提高材料的利用率。参照图4a，定义每个加强脊距离所述第一上腭弓12与所述第一壳状本体11连接处的最远距离的点至所述第一上腭弓12横断面的垂直距离为脊高。所述第一弧形加强脊31、所述第二弧形加强脊32和所述第三弧形加强脊33的任意一截面上的力矩M与抗弯截面系数W成正比。具体的，常 数σ为M/W，抗弯截面系数W＝F×h/σ。对于高为h，宽度为b的矩形，抗弯截面系数W＝b×h 2/6，保证不同截面的高度的平方成线性增加趋势，这样来保证等应力。从而充分发挥所述第一上腭弓12的刚度。
本申请一实施例中，当使用者佩戴所述第二牙科矫治器械3，所述第一弧形加强脊31、所述第二弧形加强脊32和所述第三弧形加强脊33中的任意一种的弯曲弧度与各自相对应的使用者上颚的弯曲弧度相同或不同。
本申请一实施例中，所述第一弧形加强脊31、所述第二弧形加强脊32和所述第三弧形加强脊33均设置于所述第一上腭弓12的所述腭侧面122。所述第一弧形加强脊31、所述第二弧形加强脊32和所述第三弧形加强脊33的任意一种不与使用者的上颚相接触，避免接触后患者佩戴的不适感。
本申请一实施例中，所述第一弧形加强脊31、所述第二弧形加强脊32和所述第三弧形加强脊33中，相邻的两个弧形加强脊沿所述近远中方向的间距相同或不同，即所述加强脊可以均匀设置于所述上腭弓，也可非均匀设置于所述上腭弓。
图5a为本申请实施例5的第三牙科矫治器械的结构示意图；图5b为图5a所示的月牙形加强脊的结构示意图。
参照图5a，第三牙科矫治器械5与实施例1的所述第一牙科矫治器械1的主要区别在于：所述第一上腭弓12的所述舌侧面121设有的若干月牙形加强脊51，以构成所述第三牙科矫治器械5的加强部。
单个的所述月牙形加强脊51沿所述第一上腭弓12的第一边缘123的任意一点沿所述月牙形加强脊51所在的所述第一上腭弓12的表面指向所述第一上腭弓12的第二边缘124的任意一点；若干所述月牙形加强脊51的排布方向为颊舌侧方向设置。
参照图5a和图5b，所述月牙形加强脊51由内凹曲面511和外凸曲面512延伸并交汇形成。所述月牙形加强脊51沿颊舌侧方向的截面为非连续截面，所述非连续截面的形状为半封闭三角形。
图6为本申请实施例6的第四牙科矫治器械的结构示意图。
参照图6，第四牙科矫治器械6具有第二上腭弓61，所述第二上腭弓61与实施例2的所述第一上腭弓12的主要区别在于：所述第二上腭弓61中部具有进一步朝向上颚弯曲的弯曲弓611，使所述第二上腭弓61沿设置方向的弯曲程度变化不均匀。
另外，所述第二上腭弓61设有不规则弧形加强脊62，所述不规则弧形加强脊62与所述第三弧形加强脊33的区别在于：所述不规则弧形加强脊62的中部具有进一步朝向上颚弯曲的弯曲弧形脊621，以适应所述弯曲弓611的弯曲程度。
本申请一实施例中，所述上腭弓设有调节所述上腭弓扩张或收缩的调节部。具体的，所述调节部为弹性伸缩结构，能够根据患者的矫治需求进行弹性伸缩的调整。
图7为本申请实施例7的第五牙科矫治器械的结构示意图。
参照图7，第五牙科矫治器械7与实施例1的所述第一牙科矫治器械1的主要区别在于：所述第五牙科矫治器械7的第三上腭弓71由第一短弓711、第一弹性伸缩结构712以及第二短弓713顺次连接而成，使所述第三上腭弓71朝向使用者的上颚弯曲，所述第一弹性伸缩结构712的伸缩方向为颊舌侧方向，即图7所示的X1X2方向。
本申请一实施例中，所述第一弹性伸缩结构712沿牙中线对称。
图8为本申请实施例8的第六牙科矫治器械的结构示意图。
参照图8，第六牙科矫治器械8与实施例7的所述第五牙科矫治器械7的主要区别在于：所述第六牙科矫治器械8的上腭弓由第二弹性伸缩结构84和第三弹性伸缩结构85分隔成第三短弓81、第四短弓82和第五短弓83。所述第二弹性伸缩结构84和所述第三弹性伸缩结构85的伸缩方向均为颊舌侧方向。
本申请一实施例中，所述第二弹性伸缩结构84和所述第三弹性伸缩结构85沿牙中线对称。
本申请一实施例中，所述上腭弓设有颊舌侧方向扩张或收缩的且磁性相反的磁体。所述磁体的设置方式请参考图7和图8中的弹性伸缩结构的设置方式。
本申请一实施例中，所述弹性伸缩结构还可以为弹性体，如弹簧等。
本申请一实施例中，所述上腭弓的至少一部分为多层结构。所述多层结构的相邻两层之间设有加强弓丝。
图9为本申请实施例9的第七牙科矫治器械的结构示意图。
参照图9，第七牙科矫治器械9与实施例1的所述第一牙科矫治器械1的主要区别在于：所述第一上腭弓12的一端部分连接于所述第一壳状本体11的所述右侧第二前磨牙111和右侧第一前磨牙115相对应舌侧的龈缘处，另一端部分连接于所述第一壳状本体11的所述左侧第二前磨牙113和左侧第一前磨牙116相对应舌侧的龈缘处。
本申请一实施例还提供了一种牙科器械套组，所述牙科器械套组包括第一壳状牙科器械和第二壳状牙科器械。所述第一壳状牙科矫治器械为本申请上述实施例提供的所述牙科矫治器械，其具体的实现形式可以是上文所述的第一牙科矫治器械1、所述第二牙科矫治器械3、所述第三牙科矫治器械5、所述第四牙科矫治器械6、所述第五牙科矫治器械7、所述第六牙科矫治器械8以及所述第七牙科矫治器械9中的任意一种。所述第二壳状牙科器械的壳状本体设置有若干容纳下颌牙齿的腔体。
本申请一实施例还提供了一种牙科矫治系统，包括多组牙科器械套组，所述多组牙科器械套组包括至少一组本申请上述实施例所述的牙科器械套组，且具有使牙齿从初始位置逐渐重新定位至目标矫治位置的几何形状，实现在弓形调整的同时进行牙齿矫治。
本申请一实施例中，所述牙科矫治系统包括应用于第一矫治阶段的第一牙科器械套组和应用于第二矫治阶段的第二牙科器械套组，所述第二矫治阶段在时间上位于所述第一矫治阶段之后。
具体的，所述第二牙科器械套组中的用于容纳下颌牙齿的壳状本体与所述第一牙科器械套组中的用于容纳下颌牙齿的壳状本体的几何形状不同，以使下颌牙齿逐渐定位到所述第二矫治阶段所要达到的目标矫治位置，实现矫治效果。
所述第二牙科器械套组中的用于容纳上颌牙齿的壳状本体与所述第一牙科器械套组中的用于容纳上颌牙齿的壳状本体的几何形状不同，以使上颌牙齿逐渐定位到所述第二矫治阶段所要达到的目标矫治位置。且所述第二牙科器械套组中的用于容纳上颌牙齿的壳状本体所连接的上腭弓的弯曲弧度与所述第一牙科器械套组中的用于容纳上颌牙齿的壳状本体所连接的上腭弓的弯曲弧度不同，其弯曲弧度随着矫治需求进行调整。
以图1a所示的所述第一牙科矫治器械1为例，当需要通过所述第一矫治阶段和所述第二矫治阶段达到扩弓的效果时，其用于所述第二矫治过程中的所述第一牙科矫治器械1的所述第一上腭弓12的弯曲弧度大于用于所述第一矫治过程中的所述第一上腭弓12的弯曲弧度。
当需要通过所述第一矫治阶段和所述第二矫治阶段达到缩弓的效果时，其用于所述第二矫治过程中的所述第一牙科矫治器械1的所述第一上腭弓12的弯曲弧度小于用于所述第一矫治过程中的所述第一上腭弓12的弯曲弧度。
本申请一实施例中，所述牙科器械套组中的上腭弓还设有增强所述上腭弓扩张或收缩的加强部，所述加强部为设于所述上腭弓上且与上腭的弯曲弧度一致或不同的至少一个加强脊，随着矫治过程的进行，不同牙科器械套组中的加强脊的脊高逐渐减小，扩弓或缩弓达到一定程度时，仅需要对扩弓或缩弓的结果进行状态维持即可，因此可根据矫治过程的需要进行加强脊脊高的调整。
所述加强脊的具体实现形式请参见上文对所述第二牙科矫治器械3、所述第三牙科矫治器械5和所述第四牙科矫治器械6的任意一种的加强部的描述，在此不做赘述。
图10示出了本申请一实施例的上述牙科矫治器械的设计方法流程图。
参照图10，所述第一牙科矫治器械的设计方法包括：
S1：获取包括上腭部数字模型的初始牙颌数字模型；
S2：基于所述初始牙颌数字模型设计具有特征信息的上腭弓数字模型；
S3：基于所述初始牙颌数字模型和所述具有特征信息的所述上腭弓数字模型生成具有上腭弓数字模型的牙颌数字模型；
S4：基于所述具有上腭弓数字模型的牙颌数字模型设计牙科矫治器械。
其中，上述步骤S1中，对使用者进行口内扫描，扫描的范围涵盖使用者的上颚和上牙弓，以获取包括所述上腭部数字模型的所述初始牙颌数字模型。
本申请一实施例中，采用医用硅胶材料对使用者进行口内取模以获取实体印模模型，所述实体印模模型包括上腭印模和上颌印模；将所述实体印模模型转化为实体阳模模型后，扫描所述实体阳模模型，以获取包括所述上腭部数字模型的所述初始牙颌数字模型。
其中，上述步骤S2中，所述特征信息包括所述上腭弓数字模型的尺寸信息和预设位置信息。所述上腭弓的预设位置信息为上腭弓的两端设于所述初始牙颌数字模型后牙区舌侧龈缘处或舌侧邻近龈缘处。
具体的，包括所述上腭部数字模型根据其对应的所述初始牙颌数字模型和使用者的其他必要医疗信息确认使用者的矫治需求，及再根据所述矫治需求制定包括至少一个矫治周期的矫治方案，所述上腭弓数字模型的尺寸信息和预设位置信息是基于下一矫治周期需要达到的矫治效果而制定的。
设计所述上腭弓的预设位置信息为上腭弓的两端设于所述初始牙颌数字模型后牙区舌侧龈缘处或舌侧邻近龈缘处，有利于所述牙科矫治器械与牙齿作用时，所述上腭弓能够通过形变诱发上颌腭中缝骨沉积颊舌侧向扩增，后牙区牙齿在与所述牙科矫治器械的作用下颊舌侧向移动，上腭弓对后牙区牙齿可以进行颊舌侧方向距离的扩增或缩减，以达到缩弓或扩弓的效果。
其中，上述步骤S3中，基于所述初始牙颌数字模型和所述具有特征信息的上腭弓数字模型，生成具有上腭弓数字模型的牙颌数字模型；使得牙颌数字模型上具有上腭弓数字模型，为后续设计牙科矫治器械时，提供模型依据。
其中，上述步骤S4中，基于所述具有上腭弓数字模型的牙颌数字模型设计的牙科矫治器械包括具有容纳上颌牙列的空腔的壳状本体，及所述牙科矫治器械左右两侧后牙区舌侧龈缘处或邻近龈缘处连接设置的上腭弓。
此外，本申请一实施例还提供一种上述牙科矫治器械的制备方法，所述制备方法是基于所述牙科矫治器械的设计方法设计出来的牙科矫治器械进行的相应制备，所述制备方法包括热压成型或直接3D打印。
虽然在上文中详细说明了本申请的实施方式，但是对于本领域的技术人员来说显 而易见的是，能够对这些实施方式进行各种修改和变化。但是，应理解，这种修改和变化都属于权利要求书中所述的本申请的范围和精神之内。而且，在此说明的本申请可有其它的实施方式，并且可通过多种方式实施或实现。

Claims (15)

  1. 一种牙科矫治器械，包括壳状本体，所述壳状本体设置有若干容纳上颌牙齿的腔体，其特征在于：
    所述壳状本体还设有使牙弓形态重塑的上腭弓，所述上腭弓的两端分别部分连接于所述壳状本体左右两侧后牙区舌侧的龈缘处或邻近龈缘处；
    所述壳状本体与牙齿作用时，所述上腭弓通过形变诱发上颌腭中缝骨沉积颊舌侧向扩增，后牙区牙齿在与所述壳状本体的作用下颊舌侧向移动。
  2. 根据权利要求1所述的牙科矫治器械，其特征在于，所述壳状本体左右两侧后牙区的舌侧间距与对应左右两侧后牙区牙齿舌侧间距不同。
  3. 根据权利要求1或2所述的牙科矫治器械，其特征在于，所述上腭弓还设有增强所述上腭弓扩张或收缩的加强部；任选的，所述加强部为设于所述上腭弓上且与上腭的弯曲弧度一致或不同的至少一个加强脊。
  4. 根据权利要求3所述的牙科矫治器械，其特征在于，所述加强脊的脊高与抗弯截面系数成正比。
  5. 根据权利要求3所述的牙科矫治器械，其特征在于，所述加强脊沿矢状面近远中方向的截面为间断截面或连续截面。
  6. 根据权利要求3所述的牙科矫治器械，其特征在于，所述加强脊横断面近远中方向的截面沿所述上腭弓横断面上下设置、沿所述上腭弓横断面以上设置或沿所述上腭弓横断面以下设置。
  7. 根据权利要求6所述的牙科矫治器械，其特征在于，所述加强脊横断面近远中方向的截面为弧形或半封闭的多边形。
  8. 根据权利要求1所述的牙科矫治器械，其特征在于，所述上腭弓的刚度大于所述壳状本体容纳上颌牙齿区域的刚度；和/或，所述上腭弓与所述壳状本体的厚度、硬度、材料和层数中的至少一种不同。
  9. 根据权利要求1所述的牙科矫治器械，其特征在于，所述上腭弓的至少一部分为多层结构；任选的，所述多层结构的相邻两层之间设有加强弓丝。
  10. 根据权利要求1所述的牙科矫治器械，其特征在于，所述上腭弓包括腭侧面和舌侧面，所述腭侧面与上腭间的距离为1-2mm。
  11. 根据权利要求1所述的牙科矫治器械，其特征在于，所述上腭弓还设有调节所述上腭弓扩张或收缩的调节部；任选的，所述调节部为弹性伸缩结构，所述弹性伸缩结构的 伸缩方向为颊舌侧方向。
  12. 根据权利要求1所述的牙科矫治器械，其特征在于，所述上腭弓与所述壳状本体为一体成型结构。
  13. 根据权利要求1所述的牙科矫治器械，其特征在于，所述上腭弓还设有颊舌侧方向扩张或收缩的且磁性相反的磁体。
  14. 一种如权利要求1-13任一项所述的牙科矫治器械的设计方法，其特征在于，包括：
    获取初始牙颌数字模型，所述初始牙颌数字模型包括上腭部数字模型；
    基于所述初始牙颌数字模型设计具有特征信息的上腭弓数字模型，其中所述特征信息包括所述上腭弓数字模型的尺寸信息及预设位置信息，所述上腭弓的预设位置信息为上腭弓的两端设于所述初始牙颌数字模型后牙区舌侧龈缘处或舌侧邻近龈缘处；
    基于所述初始牙颌数字模型和所述具有特征信息的上腭弓数字模型，生成具有上腭弓数字模型的牙颌数字模型；
    基于所述具有上腭弓数字模型的牙颌数字模型设计牙科矫治器械，以使所述牙科矫治器械包括具有容纳上颌牙列的空腔的壳状本体，及所述牙科矫治器械左右两侧后牙区舌侧龈缘处或邻近龈缘处连接设置的上腭弓；
    所述牙科矫治器械与牙齿作用时，所述上腭弓通过形变使上颌腭中缝骨沉积颊舌侧向扩增，后牙区牙齿在与所述牙科矫治器械的作用下颊舌侧向移动。
  15. 一种牙科矫治器械的制备方法，其特征在于，所述制备方法是基于权利要求14所述的牙科矫治器械的设计方法来进行牙科矫治器械的制备，所述制备方法包括热压成型或直接3D打印。
PCT/CN2020/120200 2019-12-21 2020-10-10 牙科矫治器械及其设计方法和制备方法 WO2021135488A1 (zh)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP20909363.2A EP4059465B1 (en) 2019-12-31 2020-10-10 Dental orthodontic appliance and design method and manufacturing method therefor
CN202090000580.3U CN220109869U (zh) 2019-12-31 2020-10-10 牙科矫治器械
AU2020419367A AU2020419367B2 (en) 2019-12-31 2020-10-10 Dental orthodontic appliance and design method and manufacturing method therefor
JP2022600100U JP3240098U (ja) 2019-12-31 2020-10-10 歯科矯正器具
US17/807,556 US20220313395A1 (en) 2019-12-21 2022-06-17 Dental orthodontic appliance and design method and manufacturing method thereof

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201911422575.1A CN111067644B (zh) 2019-12-31 2019-12-31 牙科矫治器械的设计方法和制备方法
CN201922484327.1 2019-12-31
CN201911422575.1 2019-12-31
CN201922484327.1U CN211750179U (zh) 2019-12-31 2019-12-31 牙科矫治器械、牙科器械套组及牙科矫治系统

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US17/807,556 Continuation US20220313395A1 (en) 2019-12-21 2022-06-17 Dental orthodontic appliance and design method and manufacturing method thereof

Publications (1)

Publication Number Publication Date
WO2021135488A1 true WO2021135488A1 (zh) 2021-07-08

Family

ID=76687250

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/120200 WO2021135488A1 (zh) 2019-12-21 2020-10-10 牙科矫治器械及其设计方法和制备方法

Country Status (5)

Country Link
US (1) US20220313395A1 (zh)
EP (1) EP4059465B1 (zh)
JP (1) JP3240098U (zh)
AU (1) AU2020419367B2 (zh)
WO (1) WO2021135488A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023086176A1 (en) * 2021-11-15 2023-05-19 Sympal, Inc. Improved orthodontic appliances

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106714726A (zh) * 2014-09-19 2017-05-24 阿莱恩技术有限公司 齿弓调整矫正器
CN206867292U (zh) * 2016-12-30 2018-01-12 潍坊嘉德隆义齿有限公司 一种隐形平行扩弓装置
US20180055602A1 (en) * 2014-09-19 2018-03-01 Align Technology, Inc. Arch expanding appliance
CN107847299A (zh) * 2015-07-07 2018-03-27 阿莱恩技术有限公司 用于腭部及牙弓扩张的矫正器的直接制造
CN107898513A (zh) * 2017-12-04 2018-04-13 无锡市第三人民医院 热压膜磁力扩弓器及其制造方法
CN209678717U (zh) * 2018-11-15 2019-11-26 吉林大学 一种口腔治疗用扩弓式咬合垫
CN111067644A (zh) * 2019-12-31 2020-04-28 沈刚 牙科矫治器械的设计方法和制备方法

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111182852B (zh) * 2017-10-06 2022-05-13 3M创新有限公司 包括分体式梁的正畸上颚扩张器

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106714726A (zh) * 2014-09-19 2017-05-24 阿莱恩技术有限公司 齿弓调整矫正器
US20180055602A1 (en) * 2014-09-19 2018-03-01 Align Technology, Inc. Arch expanding appliance
CN107847299A (zh) * 2015-07-07 2018-03-27 阿莱恩技术有限公司 用于腭部及牙弓扩张的矫正器的直接制造
CN206867292U (zh) * 2016-12-30 2018-01-12 潍坊嘉德隆义齿有限公司 一种隐形平行扩弓装置
CN107898513A (zh) * 2017-12-04 2018-04-13 无锡市第三人民医院 热压膜磁力扩弓器及其制造方法
CN209678717U (zh) * 2018-11-15 2019-11-26 吉林大学 一种口腔治疗用扩弓式咬合垫
CN111067644A (zh) * 2019-12-31 2020-04-28 沈刚 牙科矫治器械的设计方法和制备方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"Introduction of Stomatology", PEKING UNIVERSITY MEDICAL PRESS, pages: 36 - 38
See also references of EP4059465A4

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023086176A1 (en) * 2021-11-15 2023-05-19 Sympal, Inc. Improved orthodontic appliances

Also Published As

Publication number Publication date
JP3240098U (ja) 2022-12-08
US20220313395A1 (en) 2022-10-06
EP4059465A1 (en) 2022-09-21
AU2020419367A1 (en) 2022-07-07
EP4059465A4 (en) 2022-12-14
AU2020419367B2 (en) 2024-04-04
EP4059465B1 (en) 2024-04-10

Similar Documents

Publication Publication Date Title
US6790036B2 (en) Orthodontic tooth repositioner
CN220109869U (zh) 牙科矫治器械
CN110013332B (zh) 一种猫形辅弓隐形矫治器
CN111588490B (zh) 壳状牙齿矫治器、牙科矫治系统的设计方法及制作方法
CN110584805B (zh) 一种颌位性凹面畸形矫治系统及其设计方法
TW202200088A (zh) 齒列矯正牙套的製造方法
US8651857B2 (en) Dental appliance
TWM612021U (zh) 牙科矯治器械、牙科器械套組及牙科矯治裝置
WO2021135488A1 (zh) 牙科矫治器械及其设计方法和制备方法
WO2022036926A1 (zh) 壳状牙齿矫治器及其设计方法和制备方法、牙齿矫治套组及系统
TWM618026U (zh) 牙齒矯治器、牙科器械、牙齒矯治套組和牙齒矯治系統
CN210931950U (zh) 一种牙齿矫治器、矫治器套组以及壳状牙科矫治系统
CN111658193A (zh) 通用正畸弓丝的制作方法及正畸弓丝
WO2023109821A1 (zh) 带有凸嵴的牙科正畸矫治器
CN109431631B (zh) 一种隐形矫治器的设计方法及其应用
CN217938416U (zh) 一种壳状牙科器械及牙齿矫治系统
TWM634750U (zh) 殼狀牙科器械、殼狀牙科矯治器套組及牙科矯治系統
CN213941011U (zh) 一种加强型牙套
CN213098436U (zh) 一种带特殊装置的无托槽隐形矫治器
WO2022252749A1 (zh) 壳状牙科器械、壳状牙科矫治器套组及牙科矫治系统
CN220459432U (zh) 用于咬合调整的牙科器械
CN220293676U (zh) 牙齿正畸矫治器械以及牙齿正畸矫治系统
RU219768U1 (ru) Раковинообразный ортодонтический аппарат
CN216908156U (zh) 一种种植支抗辅助式单侧扩弓装置
CN219480381U (zh) 导板、延伸导板及牙科正畸矫治器

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20909363

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2022600100

Country of ref document: JP

Kind code of ref document: A

ENP Entry into the national phase

Ref document number: 2020909363

Country of ref document: EP

Effective date: 20220616

ENP Entry into the national phase

Ref document number: 2020419367

Country of ref document: AU

Date of ref document: 20201010

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE