CN223845780U - Maxillary dental appliance - Google Patents
Maxillary dental applianceInfo
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- CN223845780U CN223845780U CN202423166531.6U CN202423166531U CN223845780U CN 223845780 U CN223845780 U CN 223845780U CN 202423166531 U CN202423166531 U CN 202423166531U CN 223845780 U CN223845780 U CN 223845780U
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Abstract
本申请揭示了一种上颌牙齿矫正器，包括壳状矫治器，所述壳状矫治器包括壳状矫治器主体和横颚弓，壳状矫治器主体具有多个牙齿收纳腔；横颚弓至少部分跨越所述壳状矫治器主体的齿弓宽度，所述横颚弓的两端分别连接于所述壳状矫治器主体左右两侧的后牙区舌侧处；所述壳状矫治器佩戴于上颌的牙列上时，所述横颚弓与上颚间隔设置，且所述横颚弓背离上颚的一面构成舌作用面。与现有技术相比，本申请的上颌牙齿矫正器在佩戴于上颌的牙列上后，舌头舔压横颚弓的舌作用面时，横颚弓受压朝向上颚弯曲，两侧内收，从而可以带动壳状矫治器本体的后牙区内收，以对颊倾后牙产生矫治力，使其竖直。
This application discloses a maxillary orthodontic appliance, including a shell-shaped appliance. The shell-shaped appliance comprises a shell-shaped appliance body and a transmaxillary arch. The shell-shaped appliance body has multiple tooth-receiving cavities. The transmaxillary arch at least partially spans the width of the dental arch of the shell-shaped appliance body. Both ends of the transmaxillary arch are connected to the lingual side of the posterior tooth region on the left and right sides of the shell-shaped appliance body. When the shell-shaped appliance is worn on the maxillary dentition, the transmaxillary arch is spaced apart from the maxilla, and the side of the transmaxillary arch facing away from the maxilla forms a lingual action surface. Compared with the prior art, when the maxillary orthodontic appliance of this application is worn on the maxillary dentition, the transmaxillary arch is pressed and bends towards the maxilla when the tongue presses against the lingual action surface of the transmaxillary arch, retracting inwards on both sides. This retraction of the posterior tooth region of the shell-shaped appliance body generates a corrective force on the buccal posterior teeth, making them upright.
Description
Technical Field
The application relates to a maxillary dental appliance, and belongs to the technical field of oral appliances.
Background
The dental deformity is one of three diseases of the oral cavity and has high prevalence. Most of the dental deformities are deformity phenomena caused by congenital genetic factors or acquired environmental factors in the growing and developing process, and the dental deformities bring great harm to the local part of the oral cavity and even the whole body, such as affecting the development of the maxillofacial region, affecting the health of the oral cavity, affecting the function of the oral cavity, affecting the appearance of the appearance and the like, and currently, patients mainly correct the dental deformities through surgical operations or wearing an appliance.
During the closing of the interproximal spaces, and particularly during the orthodontic step of the anterior adduction, the appliance can create undesirable arch-expanding forces on the posterior teeth, which can result in unplanned facial tilting of the posterior teeth, which needs to be avoided as much as possible during the orthodontic procedure.
Disclosure of Invention
The application aims to provide a maxillary dental appliance.
To achieve one of the above objects, one embodiment provides a maxillary dental appliance comprising a shell appliance comprising:
a shell-like appliance body having a plurality of tooth receiving cavities;
The shell-shaped appliance comprises a shell-shaped appliance body, a transverse jaw bow, a lingual action surface, a pair of upper jaws and a pair of lower jaw arches, wherein the transverse jaw arches at least partially span the dental arch width of the shell-shaped appliance body, two ends of the transverse jaw arches are respectively connected to lingual sides of rear tooth areas on the left side and the right side of the shell-shaped appliance body, when the shell-shaped appliance is worn on a dental row of an upper jaw, the transverse jaw arches are arranged at intervals with the upper jaw, and one surface of the transverse jaw arches, which is away from the upper jaw, forms the lingual action surface.
In one embodiment of the present application, the transverse jaw arch is connected to the range of the tooth receiving cavity corresponding to the tooth position 5-7.
In one embodiment of the application, the shell-like appliance body has a connection to the transverse jaw arch, the connection being provided at a tooth receiving cavity that receives the facial-tilting posterior teeth.
In one embodiment of the application, the maxillary dental appliance comprises N shell-shaped appliances corresponding to N successive correction steps, wherein N is more than or equal to 2, and each shell-shaped appliance is used for repositioning the target application teeth from the initial layout of the corresponding correction step to the target layout of the corresponding correction step;
Of the N shell-shaped appliances, the distance d from the top end of one side of the transverse jaw arch close to the upper jaw to the position corresponding to the upper jaw is positively correlated with the initial cheek inclination angle of the cheek-inclined posterior teeth corresponding to the correction steps.
In one embodiment of the application, the maxillary dental appliance comprises N shell-shaped appliances corresponding to N successive correction steps, wherein N is more than or equal to 2, and each shell-shaped appliance is used for repositioning the target application teeth from the initial layout of the corresponding correction step to the target layout of the corresponding correction step;
Among the N shell-shaped appliances, the distance d from the top end of one side of the transverse jaw arch close to the upper jaw to the position corresponding to the upper jaw is positively correlated with the initial number of the cheek-tilting posterior teeth corresponding to the correction steps.
In one embodiment of the application, the distance d from the top end of one side of the transverse jaw bow, which is close to the upper jaw, to the position corresponding to the upper jaw is 3-7 mm.
In one embodiment of the present application, d is 5 to 7mm.
In one embodiment of the application, in the sagittal direction, the transverse jaw arch is located in the posterior region of the shell-like appliance body.
In one embodiment of the present application, the transverse jaw bow is in the shape of a bar.
In one embodiment of the application, the connection width of the transverse jaw bow and the shell-shaped appliance body is more than or equal to 2mm.
In one embodiment of the application, the transverse jaw bow comprises a body, wherein a tongue acting part is arranged at a position, close to the midline of the upper jaw, of one side, far away from the upper jaw, of the body, and the tongue acting part protrudes out of the body towards the front tooth direction.
In one embodiment of the present application, the transverse jaw bow comprises a body and at least one bending portion, wherein at least one bending portion is arranged at one end of the body facing the front teeth.
In one embodiment of the present application, the transverse jaw bow includes two bending portions, the two bending portions are respectively disposed at one end of the body facing the front teeth and one end facing away from the front teeth, and openings formed by the two bending portions and the body face each other.
In one embodiment of the present application, the bending portion is arc-shaped and is folded upwards sagittal from the body.
In one embodiment of the present application, the arch is a curved arch having a curved shape substantially identical to the corresponding upper jaw contour.
In one embodiment of the application, the transverse jaw arch and the shell-shaped appliance body are of an integrally formed structure or a split-formed structure.
Compared with the prior art, the upper jaw dental appliance has the beneficial effects that after being worn on the dental column of an upper jaw, when the tongue licks the tongue acting surface of the transverse jaw arch, the transverse jaw arch is pressed and bent towards the upper jaw, and the two sides of the transverse jaw arch are retracted, so that the rear tooth area of the shell-shaped appliance body can be driven to be retracted, and correction force is generated on the tilting rear teeth of the cheek, so that the upper jaw dental appliance is vertical.
Drawings
Fig. 1 is a schematic view showing the structure of an appliance for maxillary teeth according to an embodiment of the present application;
Fig. 2 is a schematic view of a maxillary dental appliance and a force-deformation schematic view according to an embodiment of the present application;
Fig. 3 is a schematic view showing a structure in which the maxillary dental appliance according to an embodiment of the present application is worn on a maxillary dentition;
Fig. 4 is a schematic view showing a structure in which a maxillary dental appliance according to another embodiment of the present application is worn on a maxillary dental column, illustrating a state in which a rear tooth is cheek-inclined;
fig. 5 is a schematic cross-sectional view of a transverse jaw arch in the sagittal direction of an embodiment of the present application.
10. The appliance comprises a shell-shaped appliance body, 111, a connecting part, 12, a transverse jaw bow, 120, a lingual action surface, 121, a lingual action part, 122, a body, 123, a bending part, 20, posterior teeth, 21, cheek-tilting posterior teeth and 30, and an upper jaw.
Detailed Description
The present application will be described in detail below. These embodiments are not intended to limit the application and structural, methodological, or functional modifications of these embodiments that may be made by one of ordinary skill in the art are included within the scope of the application.
An embodiment of the present application provides a maxillary dental appliance that can be worn on the dentition of the upper jaw for correcting upper teeth.
Referring to fig. 1-4, the maxillary dental appliance includes a shell appliance 10. The shell appliance 10 includes a shell appliance body 11 and a transverse jaw arch 12. The shell-like appliance body 11 has a plurality of tooth receiving cavities for receiving teeth. The transverse jaw bow 12 at least partially spans the dental arch width of the shell-shaped appliance body 11, two ends of the transverse jaw bow 12 are respectively connected to lingual sides of rear tooth areas on the left side and the right side of the shell-shaped appliance body 11, when the shell-shaped appliance 10 is worn on a dental column of a maxilla, the transverse jaw bow 12 and the maxilla 30 are arranged at intervals, and one surface of the transverse jaw bow 12, which is away from the maxilla 30, forms a lingual surface 120.
Thus, after the maxillary dental appliance is worn on the dentition of the upper jaw, the tongue may lick the lingual surface 120 of the mandibular arch 12, and at this time, since the mandibular arch 12 is spaced from the upper jaw 30, that is, there is a space between the mandibular arch 12 and the upper jaw 30, the mandibular arch 12 may be pressed to bend toward the upper jaw 30, and both sides of the mandibular arch 12 may be retracted, thereby driving the rear teeth area of the shell-shaped appliance body 11 to be retracted to generate an orthodontic force for the facial tilting rear teeth 21 to be vertical.
Of course, the maxillary dental appliance includes, but is not limited to, application to scenes in which background art is concerned, and may be used in other scenes in which posterior buccal tipping may occur.
Referring to fig. 2, prior to the tongue licking the mandibular arch 12, the mandibular arch 12 is in the configuration shown at 12 in fig. 2, and as the tongue licking the mandibular arch 12, the mandibular arch 12 is forced to flex toward the upper jaw 30, deforming into the configuration shown at 12' in fig. 2, with both sides retracted.
The shell-shaped appliance 11 the shell-shaped appliance body 11 may be a transparent member formed by a polymer material through a hot-press film forming process, and may be referred to as an invisible appliance, which forms a cavity for accommodating teeth, wherein the cavity includes a plurality of tooth accommodating cavities, and the plurality of tooth accommodating cavities are mutually communicated and jointly form the cavity. The cavity has a geometry that repositions the patient's teeth from the first configuration to the second configuration, the geometry of the cavity being determined based on and substantially conforming to the second configuration of the patient's teeth.
When the shell appliance 10 is worn on the dentition, the shell appliance body 11 is wrapped around the exterior of the dentition and the dentition is visible through the shell appliance body 11, with the teeth in the dentition being received in the respective tooth receiving cavities.
The shell-shaped appliance body 11 is divided into an anterior dental region and a posterior dental region on both sides. The anterior tooth area of the shell-shaped appliance body 11 corresponds to the anterior tooth area in the dentition, and the posterior tooth area of the shell-shaped appliance body 11 corresponds to the posterior tooth area in the dentition, but it is understood that the posterior tooth areas on both sides of the shell-shaped appliance body 11 are divided into a left posterior tooth area and a right posterior tooth area.
The terms "anterior tooth zone" and "posterior tooth zone" are defined herein according to the classification of teeth in pages 36-38 of the "oral medicine guide" 2 nd edition published by the university of Beijing medical press, the anterior tooth zone including incisors, lateral incisors and cuspids, the posterior tooth zone including first premolars, second premolars, first molars, second molars and third molars, the posterior tooth zone being shown as 1-3 in FDI notation, the teeth being shown as 4-8 in FDI notation.
In addition, the sagittal plane (SAGITTAL PLANE) is an anatomical term. The human body is divided into a left part and a right part, the left and the right tangential planes are sagittal planes, and the tangential planes with the same left and right are called median sagittal planes. According to the technical terminology of medical imaging published in 2020, the sagittal direction is a direction in which the X-ray centerline is incident from the front or rear of the subject's body, parallel to the sagittal plane.
The transverse jaw bow 12 is connected in the range of the tooth receiving cavity corresponding to the tooth position 5-7, namely, one end of the transverse jaw bow 12 connected with the left rear tooth zone of the shell-shaped appliance main body 11 is positioned at the tooth receiving cavity corresponding to the tooth position 5-7 of the left rear tooth zone, and one end of the transverse jaw bow 12 connected with the right rear tooth zone of the shell-shaped appliance main body 11 is positioned at the tooth receiving cavity corresponding to the tooth position 5-7 of the right rear tooth zone. After the shell-shaped appliance 10 is worn on the dentition of the upper jaw, the tongue can lick the tongue acting surface 120 of the transverse jaw arch 12, so that the transverse jaw arch 12 bends towards the upper jaw 30, the two sides of the transverse jaw arch 12 are retracted, and the area of the shell-shaped appliance main body 11 corresponding to the 5-7 tooth positions connected with the transverse jaw arch 12 is subjected to relatively large retraction force, so that the correction of the cheek inclination can be realized by acting on the transverse jaw arch 12 through the tongue under the condition that the 5-7 tooth has a cheek inclination trend or has cheek inclination.
The shell-like appliance body 11 has a connection portion 111 to the transverse jaw arch 12.
Referring to fig. 4, in the case where the crown of the rear tooth 20 is inclined to the buccal side, that is, the crown is inclined to the buccal side, the connection part 111 is provided at the tooth accommodating cavity accommodating the facial-inclined rear tooth 21. In this way, when the crown of the posterior tooth 20 is already inclined, the connecting portion 111 is provided in the tooth accommodating cavity accommodating the inclined posterior tooth 21, and the tongue can be used to apply force to the transverse jaw 12, so that the transverse jaw 12 is pressed and bent toward the upper jaw 30, and both sides of the transverse jaw are retracted, and enough arch contracting force is provided for the shell-shaped appliance body 11, thereby realizing the correction of the inclined posterior tooth 21.
In one embodiment, the maxillary dental appliance comprises N shell-shaped appliances corresponding to N successive correction steps, wherein N is greater than or equal to 2 and is a natural number.
In the correction of the maxillary dental appliance aiming at the target treatment teeth, the target treatment teeth are repositioned from an initial layout to a target layout, the whole correction process is divided into N successive correction steps, and each correction step repositions the target treatment teeth from the initial layout of the correction step to the target layout of the correction step. Basically, among the N correction steps, the target layout of the Mth correction step (1≤M < N), i.e., the initial layout of the M+1th correction step.
In the maxillary dental appliance, N shell appliances 10 correspond to N successive appliance steps, respectively. Each shell appliance 10 is used to achieve repositioning of the target appliance from the initial placement of the corresponding appliance to the target placement of the corresponding appliance.
In this embodiment, the target treatment teeth include, but are not limited to, the facial-tilting posterior 21.
Of the N shell-like appliances 10, the distance d from the top end of the side of the mandibular arch 12 near the upper jaw 30 to its position corresponding to the upper jaw 30 is positively correlated with the initial facial tilt angle of the facial-tilt posterior 21 corresponding to the correction step, which refers to the angle in the facial-lingual direction between the facial-tilt posterior 21 and its position in the vertical state, and the initial facial tilt angle refers to the facial tilt angle of the facial-tilt posterior 21 corresponding to the initial layout of the correction step. In other words, if the initial buccal inclination angle of the buccal inclined posterior 21 of the M+1th correction step is smaller than the initial buccal inclination angle of the buccal inclined posterior 21 of the M+1th correction step, among the N correction steps, the d in the M+1th shell-shaped correction device 10 is smaller than the d in the M th shell-shaped correction device 10, wherein the M th shell-shaped correction device 10 corresponds to the M th correction step, and the M+1th shell-shaped correction device 10 corresponds to the M+1th correction step.
When the initial cheek inclination angle of the cheek-tilting posterior teeth 21 is relatively large, by setting the distance d between the top end of one side of the lateral jaw arch 12, which is close to the upper jaw 30, and the position corresponding to the upper jaw 30, to be relatively large, the lateral jaw arch 12 can have a larger movement space when moving towards the upper jaw 30, and when the tongue applies force to the lateral jaw arch 12, the bending degree of the lateral jaw arch 12 towards the upper jaw 30 is larger, so that a larger arch shrinking force can be provided for the shell-shaped appliance main body 11, a larger negative torque can be provided for the shell-shaped appliance main body 11, and a larger lingual correcting force can be provided for the cheek-side posterior teeth 20.
In addition, in the N shell-shaped appliances 10, the distance d from the top end of the side of the transverse jaw arch 12 near the upper jaw 30 to the position corresponding to the upper jaw 30 is positively correlated with the initial number of the buccal tilted posterior teeth 21 corresponding to the correction step, and the initial number of the buccal tilted posterior teeth 21 refers to the number of the buccal tilted posterior teeth 21 corresponding to the initial layout of the correction step. In other words, if the initial number of the buccal pouring back teeth 21 of the M+1th correction step is smaller than the initial number of the buccal pouring back teeth 21 of the M+1th correction step, the d in the M+1th shell-shaped correction device 10 is smaller than the d in the M th shell-shaped correction device 10, wherein the M th shell-shaped correction device 10 corresponds to the M th correction step, and the M+1th shell-shaped correction device 10 corresponds to the M+1th correction step, among the N correction steps.
When the initial number of the cheek-tilting posterior teeth 21 is relatively large, the distance d between the top end of one side of the lateral jaw arch 12, which is close to the upper jaw 30, and the position corresponding to the upper jaw 30 is relatively large, so that the lateral jaw arch 12 can have a larger movement space when moving towards the upper jaw 30, and when the tongue applies force to the lateral jaw arch 12, the bending degree of the lateral jaw arch 12 towards the upper jaw 30 is larger, so that the area of the adduction region of the shell-shaped appliance main body 11 is larger, and lingual correction force is provided for the plurality of cheek-side posterior teeth 20.
The distance d from the top end of one side of the transverse jaw bow 12, which is close to the upper jaw 30, to the position corresponding to the upper jaw 30 is 3-7 mm. Within this range, the mandibular arch 12 may be made to have sufficient space to move toward the upper jaw 30, thereby providing sufficient arch retraction force to the shell-like appliance body 11, and thus may create an orthodontic force on the facial-tilting posterior 21.
Preferably, the distance d from the top end of one side of the transverse jaw bow 12, which is close to the upper jaw 30, to the position corresponding to the upper jaw 30 is 5-7 mm. This range may allow the mandibular arch 12 to provide a stronger orthodontic force to the facial tilting posterior 21 as it moves toward the upper jaw 30.
In the sagittal direction, the transverse jaw arch 12 is located in the posterior region of the shell-like appliance body 11. In other words, the left tooth No. 4 (first premolar) is connected to the right tooth No. 4 (first premolar) to form a first line, the left tooth No. 8 (third molar) is connected to the right tooth No. 8 (third molar) to form a second line, and the transverse jaw arch 12 is located between the first line and the second line in the sagittal direction.
In this way, sufficient space can be provided in the mouth to accommodate the transverse jaw arch 12 and ensure a distance d between the top end of the side of the transverse jaw arch 12 adjacent to the upper jaw 30 and the position corresponding to the upper jaw 30, and normal tongue movement can be avoided.
Referring to fig. 1-2, the transverse jaw bow 12 is in the shape of a bar. The transverse jaw bow 12 needs to cross the jaw part to connect the rear teeth 20 at two sides, and the transverse jaw bow 12 is designed to be strip-shaped, so that on one hand, the transverse jaw bow 12 has enough strength, and on the premise of accurately applying force, the material consumption is saved, and the cost is reduced.
Referring to fig. 2, the projected pattern of the shape of the transverse jaw arch 12 on the occlusal surface is a symmetrical pattern about the dental centerline L. The symmetrical patterns are used for realizing the consistent direction of the expansion force, and the expansion effect is consistent.
In one embodiment, the teeth receiving cavities connected at both ends of the transverse jaw arch 12 correspond to the same teeth positions so that the applied expanding force or contracting force is symmetrical.
The transverse jaw arch 12 is in the shape of a curved arch having a curved shape that is approximately the same as the corresponding palate contour. By providing the arches 12 in a curved arch, the arches 12 can be made more resilient so that a stronger arch expanding force can be applied.
The transverse jaw bow 12 and the shell-shaped appliance main body 11 can adopt an integrated molding structure or a split molding structure, wherein the transverse jaw bow 12 and the shell-shaped appliance main body 11 can be of an integrated film pressing molding structure or a direct 3D printing molding structure, and can also be formed by split connection of structures such as clamping, bonding, magnetic attraction and the like.
In one embodiment, the connection width of the transverse jaw bow 12 and the shell-shaped appliance body 11 is more than or equal to 2mm, so that the acting force of the tongue borne by the transverse jaw bow 12 is effectively transmitted to the shell-shaped appliance body 11, and the connection strength of the two can be ensured.
In one embodiment, the connection 111 is adjacent to the gingival margin of the tooth receiving cavity to which it is connected so that the force transfer location is as close as possible to the root of the tooth when the mandibular arch 12 is forced to move the tooth accurately to avoid facial tilting of the tooth due to the force transfer location being too high.
The transverse jaw bow 12 comprises a body 122, wherein a tongue action part 121 is arranged at a position, which is far away from the upper jaw 30 and is close to the midline of the upper jaw 30, of the body 122, and the tongue action part 121 protrudes out of the body 122 towards the front tooth direction. Thus, the side of the tongue acting portion 121 facing away from the upper jaw 30 forms at least a part of the tongue acting surface 120, so that a larger acting surface can be provided to the tongue, and the lingual muscle burden can be reduced.
Referring to fig. 5, in one embodiment, the mandibular arch 12 includes a body 122 and at least one bend 123, with at least one bend 123 being provided at an end of the body 122 facing the anterior teeth. The bending part 123 can prevent the edge of the transverse jaw bow 12 from being too sharp to scratch the tongue, and can strengthen the strength of the transverse jaw bow 12.
Preferably, the transverse jaw bow 12 includes two bending portions 123, the two bending portions 123 are respectively disposed at one end of the body 122 facing the front teeth and one end facing away from the front teeth, and openings formed by the two bending portions 123 and the body 122 face each other. That is, the two bending portions 123 are respectively disposed at the front and rear sagittal ends of the body 122 of the transverse jaw bow 12, so that the front and rear sagittal ends of the transverse jaw bow 12 can be protected from scratching the oral cavity.
The bending portion 123 is arc-shaped and is folded upwards from the sagittal direction of the body 122, so that the bending portion 123 can be prevented from contacting the tongue to scratch the tongue.
In summary, the present application has the beneficial effects that after the maxillary dental appliance is worn on the dentition of the upper jaw, the tongue can lick the lingual surface 120 of the transverse jaw arch 12, and at this time, because the transverse jaw arch 12 is spaced from the upper jaw 30, that is, the space is provided between the transverse jaw arch 12 and the upper jaw 30, the transverse jaw arch 12 is pressed and can bend towards the upper jaw 30, and both sides of the transverse jaw arch 12 are retracted, so that the rear tooth area of the shell-shaped appliance body 11 can be driven to be retracted to generate an correcting force for the facial tilting rear tooth 21, so that the appliance is vertical.
It should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined as appropriate to form other embodiments that will be understood by those skilled in the art.
The above list of detailed descriptions is only specific to practical embodiments of the present application, and they are not intended to limit the scope of the present application, and all equivalent embodiments or modifications that do not depart from the spirit of the present application should be included in the scope of the present application.
Claims (16)
1. A maxillary dental appliance comprising a shell appliance, wherein the shell appliance comprises:
a shell-like appliance body having a plurality of tooth receiving cavities;
The shell-shaped appliance comprises a shell-shaped appliance body, a transverse jaw bow, a lingual action surface, a pair of upper jaws and a pair of lower jaw arches, wherein the transverse jaw arches at least partially span the dental arch width of the shell-shaped appliance body, two ends of the transverse jaw arches are respectively connected to lingual sides of rear tooth areas on the left side and the right side of the shell-shaped appliance body, when the shell-shaped appliance is worn on a dental row of an upper jaw, the transverse jaw arches are arranged at intervals with the upper jaw, and one surface of the transverse jaw arches, which is away from the upper jaw, forms the lingual action surface.
2. The maxillary dental appliance of claim 1, wherein the transverse jaw arch is connected within a range of the tooth receiving cavity corresponding to the number 5-7 tooth positions.
3. The maxillary dental appliance according to claim 1 or 2, wherein the shell-like appliance body has a connection portion connected to the mandibular arch, the connection portion being provided at a tooth receiving cavity receiving the facial tilting posterior.
4. The maxillary dental appliance according to claim 1, wherein the maxillary dental appliance comprises N shell appliances corresponding to N successive appliance steps, respectively, N being 2 or more; each shell appliance is configured to reposition a target appliance from an initial placement for a corresponding appliance to a target placement for the corresponding appliance;
Of the N shell-shaped appliances, the distance d from the top end of one side of the transverse jaw arch close to the upper jaw to the position corresponding to the upper jaw is positively correlated with the initial cheek inclination angle of the cheek-inclined posterior teeth corresponding to the correction steps.
5. The maxillary dental appliance according to claim 1, wherein the maxillary dental appliance comprises N shell appliances corresponding to N successive appliance steps, respectively, N being 2 or more; each shell appliance is configured to reposition a target appliance from an initial placement for a corresponding appliance to a target placement for the corresponding appliance;
Among the N shell-shaped appliances, the distance d from the top end of one side of the transverse jaw arch close to the upper jaw to the position corresponding to the upper jaw is positively correlated with the initial number of the cheek-tilting posterior teeth corresponding to the correction steps.
6. The maxillary dental appliance according to claim 1, wherein a distance d from a top end of a side of the arch near the upper jaw to a position thereof corresponding to the upper jaw is 3 to 7mm.
7. The maxillary dental appliance of claim 6, wherein d is 5-7 mm.
8. The maxillary dental appliance of claim 1, wherein in the sagittal direction the transverse jaw arch is located in the posterior region of the shell appliance body.
9. The maxillary dental appliance of claim 1, wherein the transverse jaw arch is strip-shaped.
10. The maxillary dental appliance of claim 1, wherein the connection width of the transverse jaw arch to the shell appliance body is ≡2mm.
11. The maxillary dental appliance of claim 1, wherein the arch includes a body having a lingual portion disposed on a side thereof remote from the upper jaw near a midline of the upper jaw, the lingual portion protruding from the body in a front tooth direction.
12. The maxillary dental appliance of claim 1, wherein the transverse jaw arch includes a body and at least one bend, at least one of the bends being located at an end of the body facing the front teeth.
13. The maxillary dental appliance of claim 12, wherein the arch includes two folds, the folds being located at an end of the body facing the front teeth and an end facing away from the front teeth, respectively, and the folds and the opening formed by the body facing each other.
14. The maxillary dental appliance of claim 12, wherein the fold is arcuate and folds sagittal upward from the body.
15. The maxillary dental appliance of claim 1, wherein the transverse jaw arch is in a curved arch shape having a curved shape substantially the same as the corresponding maxillary profile.
16. The maxillary dental appliance of claim 1, wherein the transverse jaw arch is of unitary or split construction with the shell appliance body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202423166531.6U CN223845780U (en) | 2024-12-20 | 2024-12-20 | Maxillary dental appliance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202423166531.6U CN223845780U (en) | 2024-12-20 | 2024-12-20 | Maxillary dental appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223845780U true CN223845780U (en) | 2026-01-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202423166531.6U Active CN223845780U (en) | 2024-12-20 | 2024-12-20 | Maxillary dental appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223845780U (en) |
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2024
- 2024-12-20 CN CN202423166531.6U patent/CN223845780U/en active Active
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