CN220459431U - Dental instrument for bite adjustment and dental appliance system - Google Patents

Abstract

The embodiment of the application provides a dental instrument and tooth correction system for bite adjustment, and the dental instrument includes, holds the first shell body of upper jaw tooth and holds the second shell body of lower jaw tooth, the anterior tooth district lingual side of first shell body is equipped with the adjustment portion of the perpendicular to bite relation of adjustment upper and lower jaw anterior tooth, adjustment portion at least partially connect in the lingual department of first shell body anterior tooth district, when wearing, the surface of adjustment portion adjacent pair jaw tooth is right the area that the second shell body corresponds lower jaw anterior tooth district tooth exerts the depression force so that the second shell body holds the tooth of back tooth district tooth and accomodates the chamber drive back tooth district tooth to the direction of facing jaw removes. The dental instrument in the application is through designing the upper jaw shell-shaped body and the lower jaw shell-shaped body of different functions and mutually synergistic to accomplish the flattening of correcting deep jaw and Spee curve in step, improve and correct the effect and shorten the correction cycle.

Description

Dental instrument for bite adjustment and dental appliance system

Technical Field

The embodiment of the application relates to the technical field of orthodontic treatment, in particular to a dental instrument for bite adjustment and a dental correction system.

Background

The bad habit of the oral cavity is one of the most common causes in the misjaw deformity, and according to statistics of Beijing university of medical science, the deep jaw covering of the front teeth accounts for about 1/4 of the causes of various misjaw deformities, and the misjaw deformity caused by any one or two vertical dysplasias in the dental arches of the upper jaw and the lower jaw is represented by that the upper front teeth cutting edge covers more than one third of the length of the labial surface of the lower front teeth crown or the lower front teeth cutting edge is meshed with more than one third of the lingual side cutting edge of the upper front teeth crown, so that a patient is easy to bite the gingiva, leading to periodontitis diseases of the front teeth, facial joints and other diseases. In most malocclusion patients, correction of the deep jaw may be a primary step in the overall dental appliance, and opening the bite is critical to correcting the deep jaw.

In the prior art, a movable upper jaw appliance is generally adopted to keep the height of the alveolar bone of the front teeth unchanged, the height of the rear teeth is emphasized to be increased, jaw pads are adjusted one by one from the last tooth so as to enable the pair-by-pair teeth to be in extension contact, and after the rear teeth are increased, the lingual dislocation of the front teeth and the correction in the far rear teeth are carried out. There is also a method of setting a flat guide on the lingual side of the anterior maxillary dental region, but this method requires fixing a flat guide made of metal and resin to the maxilla, and thus, not only a phenomenon in which part of teeth are suspended after wearing the device, but also a certain influence is exerted on the chewing of the patient, and the foreign body sensation of the patient is strong. In the prior art, a flat guide structure is added to the invisible shell appliance to carry out deep jaw correction, but the upper jaw movable appliance or the invisible shell appliance is fixed with upper jaw anterior teeth through the flat guide structure, so that the lower jaw anterior teeth are depressed by using the flat guide structure, but most deep jaw covering cases often have the problem that the lower jaw Spee curve is too steep, the lower jaw anterior teeth are depressed by only using the flat guide structure, the Spee curve can not be flattened, and other correction appliances are required to be used for lifting and moving teeth in a lower jaw posterior tooth area to finish the Spee curve. This may require additional correction steps, increase the correction period and decrease the correction efficiency.

It is therefore of great importance to develop an appliance which makes it possible to correct the deep jaw simultaneously and to complete the flattening of the Spee curve.

Disclosure of Invention

An object of the embodiment of the application is to provide a dental appliance and a dental correction system for bite adjustment, which are designed into a maxillary shell-shaped body and a mandibular shell-shaped body with different functions and synergistic effect, so that leveling of deep jaw and Spee curves is synchronously completed, correction effect is improved, and correction period is shortened.

In order to achieve the above-mentioned purpose, embodiments of the present application provide a dental apparatus for bite adjustment, including, a first shell-shaped body accommodating maxillary teeth and a second shell-shaped body accommodating mandibular teeth, the lingual side of the anterior teeth area of the first shell-shaped body is provided with an adjusting portion for adjusting the vertical bite relationship of the maxillary anterior teeth and the mandibular anterior teeth, the adjusting portion is at least partially connected to the lingual side of the anterior teeth area of the first shell-shaped body, when worn, the adjusting portion applies a depression force to the area of the second shell-shaped body corresponding to the mandibular anterior teeth adjacent to the surface of the mandibular teeth so that the tooth accommodating cavity of the posterior teeth area accommodated by the second shell-shaped body drives the posterior teeth to move in the mandibular direction.

Preferably, the tooth receiving cavity of the second shell-like body for receiving the posterior teeth has a geometry with its movement around the teeth.

Preferably, the tooth receiving cavity of the second shell-shaped body corresponding to the rear tooth area for lifting the teeth is provided with a force application point concavely formed towards the tooth direction near the gingival end.

Preferably, the tooth cleaning device further comprises a lifting accessory arranged on the buccal side and/or lingual side of the teeth in the posterior tooth area, wherein the length of the lifting accessory in the mesial-distal direction is 1/2-2/3 of the length of the corresponding tooth in the mesial-distal direction.

Preferably, the second shell-like body has a lifting accommodation cavity corresponding to the lifting position, the lifting accommodation cavity being in line with the contour of the lifting attachment, and when worn, the lifting attachment interacts with the lifting accommodation cavity so that the tooth provided with the lifting attachment is subjected to lifting force.

Preferably, the buccal side of the tooth accommodating cavity of the second shell-shaped body accommodating the rear teeth is provided with a traction structure for hanging a traction piece, and the traction structure is pulled by the traction piece and applies auxiliary lifting force to the teeth wrapped by the tooth accommodating cavity of the rear teeth.

Preferably, the traction structure is formed by extension of the buccal side of the tooth receiving cavity of the second shell-like body receiving the teeth of the posterior tooth area towards the gingival end.

Preferably, the traction structure is disconnected from the corresponding tooth receiving cavity in the mesial-distal direction.

Preferably, the traction structure has a gap between it and another portion of the surface of the corresponding tooth receiving cavity in the mesial-distal direction.

Preferably, the second shell-like body has a geometry such that it accommodates the progressive movement of the anterior teeth from the first position to the second position.

Preferably, the second shell-like body is used for accommodating the teeth of the front teeth area to apply a depressing force to the wrapped teeth.

Preferably, the height of the tooth receiving cavity of the second shell-shaped body for receiving the teeth of the front tooth area in the vertical direction is smaller than the height of the tooth crown of the second shell-shaped body in the vertical direction.

Preferably, the height difference between the tooth accommodating cavity for accommodating the teeth in the front tooth area and the tooth crown accommodating the teeth in the vertical direction of the second shell-shaped body is between 0.1mm and 0.2 mm.

Preferably, the method further comprises providing a hold down attachment on a surface of the cuspid or molar adjacent to the anterior teeth, the hold down attachment applying a vertically downward force to the second shell to cause the second shell to apply a hold down force to the anterior teeth when worn.

Preferably, the surface of the depression accessory adjacent to the gingival end is a concave curved surface concavely formed towards the jaw direction.

Preferably, the second shell-shaped body is provided with a depression accommodating cavity which is consistent with the outline of the depression accessory at the position corresponding to the depression accessory.

Preferably, the concave curved surface applies a vertical downward force to the depressed receiving cavity when worn.

Preferably, the adjusting portion includes a cavity structure formed by extending a lingual side surface of the anterior tooth area of the first shell-like body in a direction toward the jaw and then toward the posterior tooth.

Preferably, the surface of the cavity structure adjacent the jaw pair is a plane parallel to the occlusal surface.

Preferably, the plane is provided with a bite structure for positioning the mandibular position, and the bite structure is the same as the tooth shape of the mandibular anterior teeth area.

Preferably, the surface of the cavity structure adjacent to the jaw pair is a bevel for guiding the mandible to move forward.

Preferably, the mechanical strength of the adjustment portion is greater than the mechanical strength of the first shell-like body.

Preferably, the adjustment portion further comprises a filler located within the cavity structure.

Preferably, the cavity structure extends in the palate direction adjacent the lingual end of the jaw facing surface to form a reinforcement against bite induced deformation of the cavity structure.

Preferably, when worn, at least part of the reinforcement portion conforms to the palate and conforms to the curvature of the palate.

Embodiments of the present application also provide a dental appliance system, including M dental appliances as described in any of the above, the M dental appliances being designed to gradually flatten a mandibular SPEE curve in a stepwise manner, wherein a second shell-shaped body of the M dental appliances is used to achieve a step-wise movement of a mandibular anterior teeth area to complete a depression in the appliance plan and to achieve a step-wise movement of a mandibular posterior teeth area to complete a rise in the appliance plan simultaneously, where M is a natural number equal to or greater than 2.

Preferably, the M dental appliances depress at least a portion of the anterior mandibular teeth by an amount of 1/3 to 1/2 of the total amount of movement required to flatten the mandibular SPEE curve.

Preferably, one of said dental instruments for bite adjustment has a single step depression of between 0.1mm and 0.2mm for at least a portion of the teeth of the anterior mandibular region.

Preferably, the M dental appliances raise at least a portion of the posterior mandibular teeth by 1/2-2/3 of the total amount of movement required to flatten the mandibular SPEE curve.

Preferably, one of said dental instruments for bite adjustment has a single step height of between 0.1mm and 0.2mm for at least part of the teeth of the posterior mandibular region.

Preferably, the relative positional relationship between each of the M dental instruments and its corresponding first shell-like body is identical.

Preferably, each of the M dental appliances is gradually approaching in the palate direction at the lowest point in the vertical direction according to the progress of the correction.

Compared with the prior art, the dental instrument and the dental correction system for occlusion adjustment have the following beneficial effects:

the utility model discloses a dental instrument for interlock adjustment is including holding the first shell body of upper jaw and holding the second shell body of lower jaw, the adjustment portion that first shell body had not only can open the interlock and remove the provision space for the lower jaw back teeth, can also utilize the special structural design of teeterboard effect structure second shell body to accomplish the rising to the lower jaw back teeth when keeping down the lower jaw front teeth simultaneously, lower jaw is corrected simultaneously, can keep down lower front teeth and rise back teeth district tooth and carry out the flattening of Spee curve to lower jaw Spee curve patient's lower front teeth simultaneously to accomplish the flattening of correcting deep covering jaw and Spee curve in step, improve the effect and shorten the cycle.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.

FIG. 1 is a schematic illustration of the wearing of a dental instrument for bite adjustment in some embodiments of the present application;

FIG. 2 is a schematic illustration of a dental instrument for bite adjustment in some embodiments of the present application;

FIG. 3 is a schematic structural view of a second shell-like body according to some embodiments of the present application;

FIG. 4 is a schematic illustration of the structure of a raised attachment in some embodiments of the present application;

FIG. 5 is a schematic illustration of the structure of a raised attachment in some embodiments of the present application;

FIG. 6 is a schematic structural view of a second shell-like body in some embodiments of the present application;

FIG. 7 is an enlarged view of portion A of FIG. 6;

FIG. 8 is a schematic structural view of a second shell-like body in some embodiments of the present application;

FIG. 9 is a schematic view of a second shell-like body according to further embodiments of the present application;

FIG. 10 is a schematic view of a second shell-like body according to further embodiments of the present application;

FIG. 11 is a schematic structural view of a first shell-like body according to some embodiments of the present application;

FIG. 12 is a schematic view of the structure of a first shell-like body according to other embodiments of the present application;

FIG. 13 is a schematic view of the structure of a first shell-like body according to other embodiments of the present application;

FIG. 14 is a schematic view of the structure of a first shell-like body according to further embodiments of the present application;

FIG. 15 is a schematic view of the structure of a first shell-like body according to further embodiments of the present application;

FIG. 16 is a flow chart of a method of generating a dental instrument for bite adjustment in some embodiments of the present application;

FIG. 17 is a schematic diagram of a graphics processor according to one embodiment of the present application;

fig. 18 is a schematic view of a series of dental instruments according to further embodiments of the present application.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the following detailed description of the embodiments of the present application will be given with reference to the accompanying drawings. However, those of ordinary skill in the art will understand that in various embodiments of the present application, numerous technical details have been set forth in order to provide a better understanding of the present application. However, the technical solutions claimed in the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments. The following embodiments are divided for convenience of description, and should not be construed as limiting the specific implementation of the present application, and the embodiments may be mutually combined and referred to without contradiction.

The "posterior tooth zone" referred to in the various examples in this application is defined according to the classification of teeth including premolars and molars, shown as 4-8 teeth in FDI notation, and anterior tooth zone FDI notation as 1-3 teeth in pages 36-38 of the oral medicine guide, 2 nd edition published by the university of Beijing medical Press. The teeth of the anterior teeth area include central incisors, lateral incisors, and cuspids. In addition, referring to teeth in the deciduous stage, the "posterior tooth area" is defined according to the classification of deciduous teeth including deciduous incisors, deciduous cuspids and deciduous molars, wherein deciduous incisors include deciduous intermediate teeth and deciduous side incisors, and deciduous molars include first deciduous molars and second deciduous molars, published by the university of Beijing medical press, 2 nd edition, pages 40-41.

The shell-shaped body is provided with a plurality of cavities for accommodating a plurality of teeth, and is divided into a lingual surface and a labial surface, a mesial surface and a distal surface. Wherein, the "lingual surface" is named for each surface of the dental crown according to pages 35-36 of the "oral medicine guide" published by the university of Beijing, medical science Press, 2 nd edition, wherein the labial surface and the buccal surface are the surfaces of the dental crown of the front tooth close to the labia, and the surface of the dental crown of the rear tooth close to the cheek is the buccal surface. The lingual surface is the surface of the front and rear teeth near the tongue of the crown. The mesial and distal surfaces are the surfaces of the crown adjacent to the adjacent tooth, collectively referred to as the adjacent surfaces. The side closer to the midline of the face is called the mesial side, and the side farther from the midline of the face is called the distal side.

Referring to fig. 1 and 2, the embodiment of the present application provides a dental appliance for bite adjustment, including a first shell-shaped body 11 accommodating maxillary teeth and a second shell-shaped body 12 accommodating mandibular teeth, wherein an adjusting part 111 for adjusting a vertical bite relationship of maxillary and mandibular anterior teeth is disposed on a lingual side of an anterior tooth zone of the first shell-shaped body 11, the adjusting part 111 is at least partially connected to a lingual side of an anterior tooth zone of the first shell-shaped body 11, when the dental appliance is worn, the adjusting part 111 can adjust the vertical bite relationship of the maxillary and mandibular teeth to open posterior teeth bite, and the adjusting part 111 applies a pressing force F1 to a region of the second shell-shaped body 12 corresponding to the mandibular anterior tooth zone adjacent to a surface of the mandibular teeth so that a tooth accommodating cavity of the second shell-shaped body 12 accommodates the posterior tooth to apply a force F2 opposite to a direction of F1 to the wrapped tooth to drive the wrapped tooth to move toward the mandibular direction. In addition, the bite opening height can be adjusted by adjusting the distance between the adjusting portion 111 and the incisor end of the anterior dental region of the first shell-like body 11, and the magnitude of the depressing force and the elevating force can be further adjusted.

In some embodiments, the tooth receiving cavity of the second shell-like body 12 that receives the posterior teeth has a geometry with its movement around the teeth. Specifically, the overall size of the inner surface of the tooth accommodating cavity of the second shell-shaped body 12 accommodating the teeth in the rear tooth area is smaller than that of the teeth to be accommodated, so that the teeth can be driven to lift up and move together when the rear tooth area tooth accommodating cavity is subjected to the teeterboard action. Alternatively, in some embodiments, referring to fig. 3, the tooth receiving cavity of the second shell-shaped body 12 is improved in that the tooth receiving cavity of the second shell-shaped body 12 corresponding to the rear tooth area raised teeth has a force application point 121 formed concavely toward the tooth near the gingival end. The point of application 121 is designed to be near the gingival end to avoid undesirable torque that may occur when the incisor ends of the teeth are subjected to force.

In some embodiments, the tooth comprises a raised attachment 14 arranged on the buccal side and/or lingual side of the teeth in the posterior tooth area, wherein the length of the raised attachment 14 in the mesial-distal direction is 1/2-2/3 of the length of the corresponding tooth in the mesial-distal direction. The second shell-like body 12 has a lifting receiving cavity 124 corresponding to the lifting position and conforming to the contour of the lifting attachment 14. When worn, the lifting attachment 14 interacts with the lifting receiving cavity 124 such that the teeth provided with the lifting attachment 14 are subjected to a lifting force to effect a lifting force on the teeth to which the lifting attachment 14 is adhered. Referring to fig. 4, the elevating attachment 14 may be a rectangular attachment adhered to the buccal surface of the tooth to be elevated, wherein the bottom surface of the rectangular attachment adjacent to the gingival end interacts with the second shell-like body 12, i.e., the bottom surface of the rectangular attachment adjacent to the gingival end is displaced from the elevating receiving cavity 124 of the second shell-like body 12 when the second shell-like body 12 is worn, and the elevating receiving cavity 124 of the second shell-like body 12 is elastically deformed to bring the tooth to elevating movement. Referring to fig. 5, the elevating attachment 14 may be a triangle-like attachment adhered to the buccal side and lingual side of the tooth to be elevated, and as such, the bottom surface of the triangle-like attachment adjacent to the gingival end interacts with the second shell-like body 12, i.e., the bottom surface of the triangle-like attachment adjacent to the gingival end forms a misalignment with the elevating receiving cavity 124 of the second shell-like body 12 when the second shell-like body 12 is worn, and the elevating receiving cavity 124 of the second shell-like body 12 elastically deforms to bring the tooth to elevating movement. The triangle-like accessory is arranged on the buccal side and the lingual side at the same time, so that the tooth can be driven to rise more highly, and the foreign body sensation of the triangle-like accessory in the oral cavity is weaker than that of the rectangle-like accessory.

In some embodiments, referring to fig. 6 and 7, a traction structure 15 for hanging a traction member is provided for a cheek side of the tooth receiving cavity of the second shell-shaped body 12 receiving the posterior teeth, and the traction structure 15 is pulled by the traction member and applies an auxiliary elevating force to the teeth wrapped around the tooth receiving cavity of the posterior teeth. The traction structure 15 is formed by extension of the buccal side of the tooth receiving cavity of the second shell-like body 12 receiving the teeth of the posterior tooth area towards the gingival end. The traction structure 15 is disconnected from the corresponding tooth receiving cavity in the mesial-distal direction. The traction structure 15 has a gap 15a between it and another portion corresponding to the tooth receiving cavity surface in the mesial-distal direction.

In some embodiments, the second shell body has a geometry such that it accommodates progressive movement of anterior teeth from a first position to a second position. The second shell-like body 12 is adapted to move the teeth by elastic deformation occurring after being worn on the teeth. In various embodiments of the present application, the first shell and the second shell may be the same material and thickness. However, different materials or thicknesses may be used as desired for the appliance. For example, materials with greater modulus of elasticity/stiffness or greater thickness may be used, typically when greater correction forces are required to achieve greater amounts of movement.

In some embodiments, referring to fig. 8, the height of the tooth receiving cavity of the second shell body 12 for receiving at least a portion of the teeth of the anterior dental region is vertically smaller than the height of the crown of the teeth of the user. That is, the height of the tooth receiving cavity corresponding to the depressed tooth in the front tooth area in the vertical direction is smaller than the height of the crown of the depressed tooth in the vertical direction. Specifically, the overall height Y1 of the tooth receiving cavity in the vertical direction may be smaller than the height Y2 of the crown of the depressed tooth, and the height difference between the tooth receiving cavity for receiving at least part of the front teeth area tooth and the crown of the tooth in the vertical direction is 0.1mm to 0.2 mm. The benefit of this design is that when the second shell 12 is worn over the patient's mandibular dentition, the posterior teeth area teeth will be held down with the posterior teeth area teeth receiving cavity of the second shell 12 in place, and the anterior teeth area teeth will always be held down by the downward force applied to the anterior teeth at the incisors of the teeth by the corresponding teeth receiving cavity that is to be held down, thus, during the wearing of the second shell 12, the anterior teeth area teeth will always be held down by the downward force.

In another embodiment, the partial height of the tooth receiving cavity corresponding to the depressed tooth in the front tooth area of the second shell-shaped body 12 is smaller than the height of the tooth crown corresponding to the depressed tooth in the vertical direction, and specifically, as shown in fig. 9, the partial height decrease may be formed by partially recessing downward (i.e., recessing inward to the gingival side) at the cut end of the corresponding tooth receiving cavity. The local height reduction range H1 is between 0.1mm and 0.2 mm.

In other embodiments, the dental appliance further comprises a depression attachment 13 provided on the surface of the cuspids or molars of the teeth adjacent to the anterior teeth area. When worn, the depressing attachment 13 applies a vertically downward force to the second shell 12 such that the second shell 12 applies a depressing force to the at least some anterior teeth. Specifically, referring to the second shell-like body 12 illustrated in fig. 10, when the second shell-like body 12 is required to depress all teeth of the anterior teeth, that is, the central incisors, the lateral incisors, and the cuspids are required to be depressed, the depression appendages 13 are adhered to the labial surfaces of the teeth of the anterior molars on both sides of the lower jaw, and the surfaces of the depression appendages 13 adjacent to the gingival ends are concave curved surfaces 13a formed to be concave toward the jaw direction. The second shell-shaped body 12 is provided with a depression accommodating cavity 123 which is consistent with the outline of the depression accessory 13 at a position corresponding to the depression accessory 13. When the device is worn, the concave curved surface 13a applies a vertical downward force to the depressed accommodating cavity 123. The second shell-like body 12 applies downward force to the central incisors, the side incisors, and the cuspids, thereby achieving depression of the central incisors, the side incisors, and the cuspids.

In other embodiments, as well, if the anterior teeth are the central incisors and the lateral incisors, the surfaces of the labial surfaces of the teeth on both sides of the cuspids are bonded with the depressing appendages 13, and as in the example of fig. 10, the surfaces of the depressing appendages 13 adjacent to the gingival end are concave curved surfaces 13a concavely formed toward the jaw. The second shell-shaped body 12 is provided with a depression accommodating cavity which is consistent with the outline of the depression accessory 13 at the position corresponding to the depression accessory 13. When the pressure-reducing device is worn, the concave curved surface applies vertical downward force to the pressure-reducing accommodating cavity. The second shell-like body 12 applies downward force to the central incisors and the lateral incisors, thereby achieving depression of the central incisors and the lateral incisors.

In some embodiments of the present application, referring to fig. 11, the adjustment portion 111 includes a cavity structure 111a formed by extending a lingual side of the anterior tooth area of the first shell-like body 11 in a contra-jaw direction and then in a posterior tooth direction. Specifically, the adjusting portion 111 includes a side wall formed by extending and bending a lingual side of the anterior teeth area of the first shell-shaped body 11 to form a cavity structure 111a, and the cavity structure 111a accommodates at least a incisor edge of the anterior teeth area of the mandible or a portion adjacent to the incisor edge; and comprises a reinforcing portion 113 for at least partially counteracting the deformation of the shell-like body due to the engagement, one end of the reinforcing portion 113 being connected to the end of the side wall remote from the first shell-like body 11. More specifically, one lingual end of the anterior teeth area of the first shell 11 is bent and extended to a side far from the anterior teeth area of the upper jaw, and a side wall of the cavity structure 111a formed by the bent and extended extension may be a curved surface with smooth transition or an extended surface surrounded by a polygon, that is, a side of the cavity structure 111a adjacent to the anterior teeth area of the upper jaw is connected to the lingual side of the anterior teeth area of the first shell 11, and a side of the cavity structure 111a far from the anterior teeth area of the upper jaw is connected to the reinforcement part 113. The specific location of the connection between the cavity structure 111a and the lingual side of the anterior tooth area of the first shell body 11 may be the location of the lingual side of the anterior tooth area of the first shell body 11 adjacent to the gingival margin or the location of the lingual side of the anterior tooth area of the first shell body 11 adjacent to the lingual fossa, specifically, the connection may be from the location of the lingual side of the anterior tooth area of the first shell body from 1/4-1/2 of the length of the crown of the anterior tooth area as the connection starting point, that is, the connection location is not the location of the lingual side of the anterior tooth area of the shell body, but extends from the location of the lingual side of the anterior tooth area of the first shell body 11 adjacent to the gingival margin or the location of the anterior tooth area of the first shell body 11 adjacent to the lingual fossa, to the location of the anterior tooth area of the anterior tooth is extended away from the side of the anterior tooth area of the upper jaw. The reinforcement portion 113 is formed by extending the cavity structure 111a in the palate direction adjacent to the lingual end of the jaw facing surface, and the reinforcement portion 113 may partially or entirely conform to the palate area of the patient and conform to the curvature of the palate, thereby counteracting deformation of the adjustment portion 111 during wear. Alternatively, referring to fig. 12, the reinforcing portion 113 is a bump structure formed by a surface of the distal end of the cavity structure 111a protruding in a direction away from the anterior maxillary tooth, thereby increasing the deformation resistance of the cavity structure 111a in the vertical direction.

Cavity structure 111a accommodates at least the incisors of teeth in the anterior mandibular region or a portion adjacent to the incisors, more specifically, "jaw-covering" refers to the vertical distance of the maxillary dental cap across the mandibular teeth, typically 1-3mm. In the anterior teeth, the covered part is not more than 1/3 of the labial surface of the incisors, which becomes the normal jaw coverage. The excess is deep covering the jaw. The degree depends on the position of the incisor edge of the lower jaw to bite on the lingual surface of the upper jaw, for example, the incisor is a normal jaw covering for 1/3 of the incisor; the ones within 1/3 of the bite are called I degree deep jaw; the ones biting within 1/3 of the neck are called II degree deep jaw; the one that bites 1/3 more of the neck is called III-degree deep jaw. While cavity structure 111a accommodates a portion of or adjacent to the incisors of the anterior mandibular teeth, may include the following: 1) The cutting edge is 1/3 of the cutting position of the labial surface of the anterior mandibular tooth; 2) A portion adjacent to the incisor edge is adjacent 1/3, such as between 1/4-1/3 or between 1/3-1/2, more preferably between 1/4-1/3, of the labial surface of the anterior mandibular tooth, where the vertical distance of the maxillary dental cap across the mandibular tooth is no more than 1/3 of the labial surface of the mandibular incisor tooth.

In some embodiments, the adjustment portion 111 includes a cavity structure 111a formed by a protrusion of a lingual side of at least one tooth receiving cavity of the anterior tooth area of the first shell body 11 in a partially distal direction; referring to fig. 13 specifically, the first shell-shaped body 11 has a plurality of cavity structures 111a extending from a partial lingual side of the tooth receiving cavity toward a distal direction, and the cavity structures 111a are communicated with the tooth receiving cavity, so that the design has the advantage that the adjusting portion 111 and the first shell-shaped body 11 are integrally formed, which is suitable for mass production and manufacture, and in addition, the design of the adjusting portion 111 does not affect the wrapping property of the tooth receiving cavity on teeth too much.

In some embodiments, referring to the schematic cross-sectional view of the first shell-like body 11 along the sagittal plane in fig. 14, the surface of the cavity structure 111a adjacent the opposing jaw is a plane parallel to the occlusal plane. Specifically, the whole surface of the cavity structure 111a adjacent to the opposite jaw is a plane, or a bite structure 111b for positioning the mandibular position is arranged on the surface, and the shape of the bite structure 111b is the same as that of teeth in the front teeth area of the opposite jaw. The advantage of this design is that the mandibular position can be better located by the bite structure 111b, as well as guiding the mandibular sagittal movement, to account for cases of partial deep coverage or contra-jaw.

Still alternatively, in other embodiments, referring to the schematic cross-sectional view of the first shell-like body 11 along the sagittal plane in fig. 15, the surface of the cavity structure 111a adjacent to the counter jaw is a bevel that guides the anterior movement of the mandible. The inclined surface can drive the mandibular teeth to move forwards in the occlusion process, so that the mandibular teeth are guided to move forwards, and the deep coverage problem is corrected.

In some embodiments, the mechanical strength of the adjustment portion 111 is greater than the mechanical strength of the first shell-like body 11. Specifically, the adjusting portion 111 and the first shell-shaped body 11 are made of the same material, such as one of PETG, PC and TPU, and may be made of other polymer materials with safety in use of medical devices for use in the oral cavity, so that the teeth correcting effect is generated while the oral cavity is safe to wear; in other embodiments, the adjusting portion 111 and the first shell-shaped body 11 are respectively made of different single materials or different multi-layer composite materials, more specifically, when the adjusting portion 111 and the first shell-shaped body 11 are made of different single materials, any two of PETG, PC or TPU may be combined; the adjusting portion 111 and the first shell-shaped body 11 may be made of different materials during design or preparation, for example, the material of the first shell-shaped body 11 is TPU, the material of the adjusting portion 111 may be PETG, and at this time, the membrane used for preparing by hot press molding may be made of different materials locally, or may be made of different materials for local areas during 3D direct printing. When the adjusting portion 111 is a multi-layer composite material different from the first shell-shaped body 11, the adjusting portion 111 may be a multi-layer composite material formed by any combination of PETG, PC or TPU, and the first shell-shaped body 11 is a single material; the adjusting portion 111 may be made of a single material, and the first shell-like body 11 may be made of a multi-layer composite material; it is also possible that the adjustment part 111 and the first shell-like body 11 are both of a multi-layer composite material; more specifically, the adjusting portion 111 is a different multi-layer composite material from the first shell-shaped body 11, for example, the first shell-shaped body 11 is of a single-layer structure or a multi-layer composite structure, and the adjusting portion 111 is a multi-layer composite material, wherein one layer of the multi-layer structure of the adjusting portion 111 may be the same as the first shell-shaped body 11 or may be different, for example, the adjusting portion 111 is made of a double-layer composite material, specifically, PETG and TPU, and the material of the first shell-shaped body 11 is PETG; also, as the adjustment portion 111 is a double-layer composite material composition, specifically PETG and TPU, the first shell-like body 11 is a double-layer composite material composition, specifically PETG and PC. The above-mentioned embodiments are only some of the preferred embodiments, and various combinations of materials capable of achieving the effects of the present invention are within the scope of the present invention, and are not described herein.

In other embodiments, referring to the schematic cross-sectional view of the first shell-like body 11 along the sagittal plane in fig. 12, the adjustment portion 111 further includes a filler member positioned within the cavity structure 111 a. The filler can be made by adopting glass resin materials meeting the oral medical standard, when the dental appliance in the application is worn in the initial stage of correction, the mandibular teeth of a patient can have larger biting force on the adjusting part 111, and the cavity structure 111a of the adjusting part 111 is easy to generate biting collapse deformation in the use process, so that the dental appliance can not be worn in the correction process, and the filler in the application can well solve the problems, and the entity filler can effectively improve the deformation resistance of the cavity structure 111a, so that the dental appliance in the initial stage of correction can obtain more reliable and stable correction results.

Embodiments of the present application also provide a method for generating a dental instrument, as shown in fig. 16, including:

step 101, obtaining an initial SPEE curve depth of the current patient dentition, and obtaining a target SPEE curve depth at a correction target position according to a correction plan;

step 102, determining corresponding first digital dental model and second digital dental model of the first shell-like body and the second shell-like body; the lingual side of the anterior teeth area of the first digital dental model is provided with an adjusting part for adjusting the vertical occlusion relation of the anterior teeth of the upper jaw and the lower jaw, and the adjusting part is at least partially connected with the lingual side of the anterior teeth area of the first digital dental model; designing the tooth elevation of the rear tooth area of the second digital dental model according to the SPEE curve depth and the target SPEE curve depth;

Step 103, manufacturing a dental appliance: and manufacturing a first shell-shaped body and a second shell-shaped body according to the first digital dental model and the second digital dental model respectively.

In some embodiments, manufacturing a dental appliance includes: and manufacturing a physical model corresponding to the digital dental model corresponding to the series of dental instruments by adopting an additive manufacturing mode, and manufacturing the series of dental instruments by adopting a hot-pressing film mode according to the physical model. Additive manufacturing can also be called 3D printing, and is a manufacturing technology for manufacturing solid objects by integrating computer-aided design, material processing and forming technology and stacking special metal materials, nonmetal materials and medical biological materials layer by layer in the modes of extrusion, sintering, melting, photo-curing, spraying and the like through a software and numerical control system based on digital model files.

In other embodiments, the manufacturing a dental appliance includes: generating a digital model of the series of dental instruments according to the digital dental models corresponding to the series of dental instruments, and manufacturing the series of dental instruments according to the digital model of the series of dental instruments in an additive manufacturing mode.

It should be noted that each module in this embodiment is a logic module, and in practical application, one logic unit may be one physical unit, or may be a part of one physical unit, or may be implemented by a combination of multiple physical units. In addition, in order to highlight the innovative part of the present invention, units that are not so close to solving the technical problem presented by the present invention are not introduced in the present embodiment, but this does not indicate that other units are not present in the present embodiment.

One embodiment of the invention relates to an electronic device, as shown in fig. 17, comprising at least one processor 401; the method comprises the steps of,

a memory 402 communicatively coupled to the at least one processor 401; wherein,

the memory 402 stores instructions executable by the at least one processor 401 for enabling the at least one processor 401 to perform a method of generating a shell dental instrument.

Where the memory and the processor are connected by a bus, the bus may comprise any number of interconnected buses and bridges, the buses connecting the various circuits of the one or more processors and the memory together. The bus may also connect various other circuits such as peripherals, voltage regulators, and power management circuits, which are well known in the art, and therefore, will not be described any further herein. The bus interface provides an interface between the bus and the transceiver. The transceiver may be one element or may be a plurality of elements, such as a plurality of receivers and transmitters, providing a means for communicating with various other apparatus over a transmission medium. The data processed by the processor is transmitted over the wireless medium via the antenna, which further receives the data and transmits the data to the processor.

The processor is responsible for managing the bus and general processing and may also provide various functions including timing, peripheral interfaces, voltage regulation, power management, and other control functions. And memory may be used to store data used by the processor in performing operations.

One embodiment of the present invention relates to a computer-readable storage medium storing a computer program. The computer program implements the above-described method embodiments when executed by a processor.

That is, it will be understood by those skilled in the art that all or part of the steps in implementing the methods of the embodiments described above may be implemented by a program stored in a storage medium, where the program includes several instructions for causing a device (which may be a single-chip microcomputer, a chip or the like) or a processor (processor) to perform all or part of the steps in the methods of the embodiments of the invention. And the aforementioned storage medium includes: a usb disk, a removable hard disk, a Read-only memory (ROM), a random access memory (RAM, randomAccessMemory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.

Embodiments of the present application provide another dental system for bite adjustment, shown with reference to fig. 18, comprising M dental instruments that gradually implement an orthodontic plan in steps, the plurality of dental instruments being designed to gradually flatten the mandibular SPEE curve in a stepwise manner. Each of the M dental instruments is provided with a dental instrument which is provided with a maxillary shell-shaped body for accommodating maxillary dentition and a mandibular shell-shaped body for accommodating mandibular dentition, the M maxillary shell-shaped bodies are provided with adjusting parts for opening the occlusion height of the anterior teeth, the M mandibular shell-shaped bodies are provided with geometric structures for applying a depressing force to the mandibular teeth, the M mandibular shell-shaped bodies are used for realizing the depressing movement of the mandibular anterior teeth in the orthodontic plan step by step, and the M adjusting parts keep the relative position relationship of the anterior teeth in the vertical direction consistent or inconsistent in the orthodontic process, and M is a natural number which is more than or equal to 2. Specifically, the M dental instruments for gradually implementing the orthodontic treatment plan in steps include a dental instrument 100, a dental instrument 200 and a dental instrument 300, the adjusting portion 111 in the dental instrument 100 and the adjusting portion 211 in the dental instrument 200 and the adjusting portion 311 in the dental instrument 300 ensure that the relative positional relationship between the upper and lower teeth in the anterior teeth area is kept consistent during the wearing process, and the second shell 12, the second shell 22 and the second shell 32 are corresponding to the tooth depression in the anterior teeth area in the corresponding orthodontic treatment stage in the orthodontic treatment step.

In some embodiments, when it is desired to design stepwise movement, it is necessary to control the depressing force in each step, and the amount of movement applied to the teeth by the adjusting portion is adjusted by adjusting the relative positional relationship of the teeth of the upper jaw of the adjusting portion. That is, each of the plurality of dental instruments for bite adjustment is gradually moved toward the palate at a vertically lowest point as it advances over time. The design can not only adjust the movement amount of each step, but also keep the vertical relationship of the upper jaw and the lower jaw at the correct position after the correction is finished.

In deep mandibular cases, the patient's mandibular dentition is often accompanied by a deep SPEE curve, and in general, for patients with deeper SPEE, it is necessary to depress the anterior dental area of their mandibular dentition and raise the posterior teeth area, i.e. flatten the mandibular SPEE curve. Especially for low angle horizontal growth type patients, the extension of the back teeth is utilized to increase the height between the back teeth area jaws, so that the facial form can be improved. Thus, in some embodiments, the series of dental appliances are further designed to achieve a stepwise lifting movement of the teeth in the posterior mandibular region.

In some embodiments, the total amount of movement of the series of dental instruments to flatten the mandibular SPEE curve is the sum of the total amount of movement of the mandibular anterior teeth in a depressed position and the total amount of movement of the mandibular posterior teeth in a raised position. Specifically, the series of dental instruments provides a total amount of movement of the mandibular anterior teeth of 1/3-1/2 of the total amount of movement required to flatten the mandibular SPEE curve. Thus, the series of dental instruments provides a total amount of elevating movement of the posterior mandibular teeth of 1/2-2/3 of the total amount of movement required to flatten the mandibular SPEE curve. Typically, the total amount of posterior tooth extension is designed to be between 1mm and 1.5mm, and the single step elevation of the teeth in the mandibular posterior region corresponding to the appliance in each stage of the series of dental appliances is between 0.1mm and 0.2 mm.

The foregoing is merely a preferred embodiment of the present invention, and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.

Likewise, the foregoing is merely specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think about variations or substitutions within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (32)

1. The utility model provides a dental instrument for bite adjustment, its characterized in that includes, holds the first shell body of upper jaw tooth and holds the second shell body of lower jaw tooth, the anterior tooth district lingual side of first shell body is equipped with the adjustment portion of the perpendicular to bite relation of adjustment upper and lower jaw anterior tooth, adjustment portion at least partially connect in the lingual department of first shell body anterior tooth district, when wearing, the adjustment portion is adjacent to the surface to the jaw tooth to the area that the second shell body corresponds lower jaw anterior tooth district tooth exerts the depression force in order to make the tooth chamber that the second shell body held back tooth district tooth drives back tooth district tooth to the direction to the jaw.

2. The dental appliance of claim 1, wherein the tooth receiving cavity of the second shell-like body for receiving the posterior teeth has a geometry with its movement around the teeth.

3. The dental appliance of claim 2, wherein the tooth receiving cavity of the second shell-like body corresponding to the posterior tooth area raised tooth has a point of application proximate the gingival end formed concave in the direction of the tooth.

4. The dental appliance of claim 2, further comprising a raised attachment provided on the buccal and/or lingual side of the posterior teeth, the raised attachment having a mesial-distal length of 1/2-2/3 of the mesial-distal length of its corresponding tooth.

5. The dental instrument of claim 4, wherein the second shell-like body has a raised receiving cavity corresponding to the raised position and conforming to the contour of the raised attachment, the raised attachment interacting with the raised receiving cavity when worn such that a tooth provided with the raised attachment is subjected to a lifting force.

6. The dental appliance of claim 1 or 4, wherein the buccal side of the second shell-like body housing the tooth receiving cavity of the posterior tooth is provided with a traction structure for suspending a traction member, the traction structure being pulled by the traction member and applying an auxiliary elevating force to the teeth wrapped around the tooth receiving cavity of the posterior tooth.

7. The dental appliance of claim 6, wherein the traction structure is formed by extension of the buccal side of the tooth receiving cavity of the second shell-like body receiving the posterior teeth toward the gingival end.

8. The dental instrument of claim 6, wherein the traction structure is unconnected to the corresponding tooth receiving cavity in a mesial-distal direction.

9. The dental instrument of claim 8, wherein the traction structure has a gap between another portion of the tooth receiving cavity surface in the mesial-distal direction.

10. The dental instrument of claim 1, wherein the second shell body has a geometry that allows it to accommodate progressive movement of anterior teeth from the first position to the second position.

11. The dental appliance of claim 10, wherein the second shell body is adapted to receive the tooth receiving cavity of the anterior teeth area to apply a depressing force to the wrapped teeth.

12. The dental appliance of claim 11, wherein the second shell body has a vertically smaller height of the tooth receiving cavity for receiving the anterior teeth than a vertically smaller height of the crown for receiving the teeth.

13. The dental appliance of claim 12, wherein the second shell body has a height difference in a vertical direction between a tooth receiving cavity for receiving the anterior teeth and a tooth crown thereof of between 0.1mm and 0.2 mm.

14. The dental instrument of claim 11 or 12, further comprising a hold down attachment disposed on a surface of the cuspid or molar adjacent to the anterior teeth, the hold down attachment applying a vertically downward force to the second shell body to cause the second shell body to apply a hold down force to the anterior teeth when worn.

15. The dental instrument of claim 14, wherein a surface of the depression attachment adjacent the gingival end is a concave curved surface concavely formed toward the jaw.

16. The dental instrument of claim 15, wherein the second shell body has a depressed receiving cavity conforming to the contour of the depressed attachment at a location corresponding to the depressed attachment.

17. The dental instrument of claim 16, wherein the concave curve applies a vertically downward force to the depressed receiving cavity when worn.

18. The dental instrument of claim 1, wherein the adjustment portion includes a cavity structure formed by a lingual side of the anterior tooth area of the first shell body extending in a posterior-to-jaw direction and a posterior tooth direction.

19. The dental instrument of claim 18, wherein the surface of the cavity structure adjacent the pair of jaws is a plane parallel to the occlusal plane.

20. The dental instrument of claim 19, wherein the planar surface has bite formations thereon for locating mandibular positions, the bite formations being the same shape as teeth of the anterior mandibular region.

21. The dental instrument of claim 18, wherein the surface of the cavity structure adjacent the counter jaw is a ramp that directs the anterior movement of the mandible.

22. The dental instrument of claim 18, wherein the adjustment portion has a mechanical strength greater than a mechanical strength of the first shell-like body.

23. The dental instrument of claim 22, wherein the adjustment portion further comprises a filler positioned within the cavity structure.

24. The dental instrument of claim 18, wherein the cavity structure extends in a palatal direction adjacent a lingual end of the jaw facing surface to form a reinforcement against bite induced deformation of the cavity structure.

25. A dental instrument as in claim 24, wherein at least a portion of the reinforcement portion conforms to the palate and conforms to the curvature of the palate when worn.

26. A dental appliance system comprising M dental appliances according to any one of claims 1 to 25, the M dental appliances being designed to gradually flatten the mandibular SPEE curve in a stepwise manner, wherein a second shell-like body of the M dental appliances is used to achieve a stepwise depression movement of the mandibular anterior teeth in the appliance plan and a simultaneous elevation movement of the mandibular posterior teeth in the appliance plan, M being a natural number of 2 or more.

27. The dental appliance system of claim 26, wherein the M dental appliances depress at least a portion of the anterior mandibular teeth by an amount of 1/3 to 1/2 of the total amount of movement required to flatten the mandibular SPEE curve.

28. The dental appliance system of claim 27, wherein one of the dental instruments for bite adjustment has a single step depression of between 0.1mm and 0.2mm for at least a portion of the anterior mandibular teeth area teeth.

29. The dental appliance system of claim 26, wherein the M dental appliances raise at least a portion of the posterior mandibular teeth by 1/2-2/3 of the total amount of movement required to flatten the mandibular SPEE curve.

30. The dental appliance system of claim 29, wherein one of the dental instruments for bite adjustment has a single step up of between 0.1mm and 0.2mm for at least a portion of the posterior mandibular teeth.

31. The dental appliance system of claim 26, wherein each of the M dental appliances has a relative positional relationship with its corresponding first shell-like body.

32. The dental appliance system of claim 26, wherein each of the M dental appliances is progressively moved closer to the palate at a vertically lowest point as the appliance progresses.