Bite adjustment structure for treatment planning
阅读说明：本技术 针对治疗计划的咬合调整结构 (Bite adjustment structure for treatment planning ) 是由 罗希特·塔纳古拉 约翰·莫顿 李春华 巴斯蒂安·皮森帝 程继华 崔智英 于 2015-02-20 设计创作，主要内容包括：包括第一壳体和第二壳体的一系列矫正器,其能够被设计为渐进地实施治疗计划。第一壳体和第二壳体能够具有设计为收容颚的牙齿的腔体。第一数量的咬合调整结构能够由与第一壳体相同的材料形成,从第一壳体延伸,并且被设计为与第二颚的牙齿交界。第一数量的咬合调整结构能够具有针对于治疗计划的第一阶段的第一形状和位置。第二数量的咬合调整结构能够由与第二壳体相同的材料的形成,从第二壳体延伸,并且被设计为与第二颚的牙齿交界。第二数量的咬合调整结构能够具有针对于治疗计划的第二阶段、与第一形状和位置不同的第二形状和位置。(A series of appliances, including a first shell and a second shell, can be designed to progressively deliver a treatment plan. The first and second shells can have cavities designed to receive teeth of the jaw. The first number of bite adjustment structures can be formed of the same material as the first shell, extend from the first shell, and be designed to interface with teeth of the second jaw. The first number of bite adjustment structures can have a first shape and position for a first stage of the treatment plan. The second number of bite adjustment structures can be formed of the same material as the second shell, extend from the second shell, and be designed to interface with teeth of the second jaw. The second number of bite adjustment structures can have a second shape and position different from the first shape and position for a second stage of the treatment plan.)
1. A method, comprising:
positioning a plurality of digital bite adjustment structures on a corresponding plurality of digital teeth of the digital model of the first jaw at a first stage of the treatment plan;
designing the bite adjustment structure having a first shape and position for a first stage of the treatment plan to be designed to interface with teeth of a second jaw;
adjusting the bite adjustment structure by changing a position of the plurality of digital bite adjustment structures on a corresponding plurality of digital teeth of the digital model of the first jaw in a second stage of the treatment plan; and
outputting a digital model of the first jaw for use in the formation of an appliance for the manufacture of a physical model corresponding to the first jaw for the first and second stages of the treatment plan.
2. The method of claim 1, wherein the adjusting further comprises:
changing a shape of the plurality of digital bite adjustment structures on the corresponding plurality of digital teeth of the digital model of the first jaw.
3. The method of claim 1, wherein the adjusting further comprises:
changing positions of the plurality of digital bite adjustment structures on the corresponding plurality of digital teeth of the digital model of the first jaw.
4. The method of claim 1, wherein the adjusting further comprises:
changing an orientation of the plurality of digital bite adjustment structures on the corresponding plurality of digital teeth of the digital model of the first jaw.
5. The method of claim 1, wherein the adjusting further comprises:
changing a size of the plurality of digital bite adjustment structures on the corresponding plurality of digital teeth of the digital model of the first jaw.
6. The method of claim 1, wherein the corresponding plurality of digital teeth of the digital model are front digital teeth of the digital model.
7. The method of claim 6, further comprising:
modeling forces applied to the plurality of bite adjustment structures by a user wearing a corresponding one of the appliances during a first phase of the treatment plan; and
in a first stage of the treatment plan, adjusting a shape of the digital model of the first jaw such that the corresponding one appliance disperses reaction forces corresponding to the force to a plurality of posterior teeth of the first jaw of the user while the corresponding one appliance is worn by the user.
8. The method of claim 1, wherein the positioning is based on a first plurality of forces used to reposition the corresponding plurality of digital teeth a first distance according to a first stage of the treatment plan.
9. The method according to claim 1, wherein the adjustment is made according to a change in a digital model of the first jaw between the first stage of the treatment plan and a second stage of the treatment plan.
10. The method of claim 1, wherein the first shape comprises a notch shaped to receive a cutting edge surface of the second jaw.
11. The method of claim 3, wherein the changing of the position comprises changing a vertical relationship between stages to correct for deep bites.
12. The method of claim 1, wherein adjusting the bite adjustment structure is adjusting a canine tooth guide.
13. The method of claim 11, wherein changing the perpendicular relationship between stages comprises gradually moving the position towards a incisal edge of the respective tooth receiving cavity.
14. The method of claim 1, wherein adjusting the bite adjustment structure is providing a malocclusion between posterior and/or anterior teeth.
15. The method of claim 3, wherein changing the position is based on a change in a pushing in or out of a corresponding tooth on the tooth or the opposing jaw and/or a movement of the corresponding tooth on the tooth or the opposing jaw.
16. A method, comprising:
receiving a digital model of a patient's teeth, the digital model including a first jaw and a second jaw and including a deep bite malocclusion of the patient's teeth, and in response to receipt of the digital model:
positioning a plurality of digital bite adjustment structures on a corresponding plurality of digital teeth of the digital model of the first jaw at a first stage of the treatment plan;
designing the bite adjustment structure having a first shape and position for a first stage of the treatment plan to be designed to interface with teeth of a second jaw;
adjusting the bite adjustment structure to help correct the deep bite malocclusion by changing a vertical position of the plurality of digital bite adjustment structures on a corresponding plurality of digital teeth of the digital model of the first jaw at a second stage of the treatment plan; and
outputting a digital model of the first jaw for use in the formation of an appliance, the digital model of the first jaw for use in the manufacture of a physical model corresponding to the first jaw for the first and second stages of the treatment plan.
17. The method of claim 16, wherein changing the vertical position comprises moving a bite adjustment structure toward an incisal edge of the respective tooth receiving cavity.
18. The method of claim 16, wherein the adjusting is performed according to a change in a digital model of an appliance of the first jaw between a first stage of the treatment plan and a second stage of the treatment plan.
19. The method of claim 16, wherein adjusting the bite adjustment structure is providing a malocclusion between posterior and/or anterior teeth.
20. The method of claim 16, wherein changing the vertical position is based on a change in a pushing in or out of a tooth or corresponding tooth on the opposing jaw and/or a movement of a tooth or corresponding tooth on the opposing jaw.
21. The method of claim 16, wherein the adjusting further comprises:
changing an orientation of the plurality of digital bite adjustment structures on the corresponding plurality of digital teeth of the digital model of the appliance of the first jaw.
22. A method, comprising:
positioning a plurality of digital bite adjustment structures at locations on a corresponding plurality of digital tooth receiving cavities of a digital model of an appliance of a first jaw at a first stage of a treatment plan;
designing the bite adjustment structure having a first shape and position for a first stage of the treatment plan to be designed to interface with teeth of a second jaw;
adjusting the bite adjustment structure by changing a position of the plurality of digital bite adjustment structures on the corresponding plurality of digital tooth receiving cavities of the digital model of the appliance of the first jaw at a second stage of the treatment plan; and
outputting a digital model of an appliance of the first jaw for formation of a physical appliance, the digital model of an appliance of the first jaw for manufacture of a physical model corresponding to appliances of the first jaw for first and second stages of the treatment plan.
23. The method of claim 22, wherein the adjusting further comprises:
changing a shape of the plurality of digital bite adjustment structures on the corresponding plurality of digital tooth receiving cavities of the digital model of the appliance of the first jaw.
24. The method of claim 22, wherein the adjusting further comprises:
changing positions of the plurality of digital bite adjustment structures on the corresponding plurality of digital tooth receiving cavities of the digital model of the appliance of the first jaw.
25. The method of claim 22, wherein the adjusting further comprises:
changing an orientation of the plurality of digital bite adjustment structures on the corresponding plurality of digital tooth receiving cavities of the digital model of the appliance of the first jaw.
26. The method of claim 22, wherein the adjusting further comprises:
changing a size of the plurality of digital bite adjustment structures on the corresponding plurality of digital tooth receiving cavities of the digital model of the appliance of the first jaw.
27. The method of claim 22, wherein the corresponding plurality of digital tooth receiving cavities of a digital appliance model are digital tooth receiving cavities for anterior teeth.
28. The method of claim 27, further comprising:
modeling forces applied to the plurality of bite adjustment structures by a user wearing a corresponding one of the appliances during a first phase of the treatment plan; and
adjusting, at a first stage of the treatment plan, a shape of the digital model of the corresponding one appliance of the first jaw such that the corresponding one appliance disperses reaction forces corresponding to the force to a plurality of posterior teeth of a first jaw of a user with the corresponding one appliance worn by the user.
29. The method of claim 22, wherein the positioning is based on a first plurality of forces used to reposition the corresponding plurality of digital teeth a first distance according to a first stage of the treatment plan.
30. The method of claim 22, wherein the first shape comprises a notch shaped to receive a cutting edge surface of the second jaw.
31. The method of claim 22, wherein the adjusting is performed according to a change in a digital model of an appliance of the first jaw between a first stage of the treatment plan and a second stage of the treatment plan.
32. The method of claim 24, wherein the changing of the position includes changing a vertical relationship between stages to correct for deep bites.
33. The method of claim 22, wherein adjusting the bite adjustment structure is adjusting a canine tooth guide.
34. The method of claim 32, wherein changing the perpendicular relationship between stages comprises gradually moving the position towards a incisal edge of the respective tooth receiving cavity.
35. The method of claim 22, wherein adjusting the bite adjustment structure is providing a malocclusion between posterior and/or anterior teeth.
36. The method of claim 24, wherein changing the position is based on a change in a pushing in or out of a corresponding tooth on the tooth or the opposing jaw and/or a movement of the corresponding tooth on the tooth or the opposing jaw.
37. A system, comprising:
a first appliance of a series of appliances to progressively implement a treatment plan for a patient having a first jaw and a second jaw, the first appliance comprising a first shell having a plurality of cavities therein that receive teeth of the first jaw, and the first appliance for a first stage of the treatment plan;
a first plurality of bite adjustment structures formed of the same material as the first shell, extending from the first shell, and having a first height with respect to respective ones of the plurality of cavities of the first shell and respective first planes, thereby enabling respective contacting teeth of a second jaw to slide along the respective planes;
a second appliance of the series of appliances for a second stage of the treatment plan, the second appliance comprising a second shell having a plurality of cavities therein that receive the teeth of the first jaw; and
a second plurality of bite adjustment structures formed of the same material as the second housing, extending from the second housing, and having a second height with respect to respective ones of the plurality of cavities of the second housing.
38. The system of claim 37, wherein the first height is based on an interface with respective contacting teeth of the second jaw when the first appliance is worn and the first and second jaws are toothed.
39. The system of claim 37, wherein the series of appliances comprises a third appliance comprising a third shell for the first stage of the treatment plan having a plurality of cavities therein that receive the teeth of the second jaw.
40. The system of claim 39, wherein the third appliance includes a third bite adjustment structure formed from the same material as the third shell, extending from the third shell, and interfacing with teeth of the first jaw, and wherein the third bite adjustment structure has a shape and position specific to a first stage of the treatment plan.
41. The system of claim 37, wherein the first and second plurality of bite adjustment structures extend from respective cavities of respective shells that receive the anterior teeth.
42. The system of claim 41, wherein the second height is closer to a cutting edge surface of the respective cavity than the first height of the first plurality of bite adjustment structures.
43. The system of claim 37, wherein the first plurality of bite adjustment structures extend from a plurality of cavities of a first shell housing anterior teeth, and wherein the first plurality of bite adjustment structures provide a non-occlusions between the first jaw and the second jaw when the first appliance is worn by the patient.
44. The system of claim 37, wherein the series of appliances comprises a third appliance comprising a third shell having a plurality of cavities therein that receive and reposition the teeth of the first jaw, wherein the third appliance does not include a bite adjustment structure.
45. The system of claim 37, wherein the series of appliances comprises:
a third appliance comprising a third shell having a plurality of cavities therein that receive the teeth of the first jaw;
a third plurality of bite adjustment structures formed from the same material as the third shell extending therefrom, wherein the third plurality of bite adjustment structures have a third height according to a third stage of the treatment plan that is closer to respective incisal edge surfaces of respective cavities than the first and second plurality of bite adjustment structures.
46. A system, comprising:
a first appliance of a series of appliances to progressively implement a treatment plan for a patient having a first jaw and a second jaw, the first appliance comprising a first shell having a plurality of cavities therein that receive teeth of the first jaw at a first stage of the treatment plan;
a first bite adjustment structure formed of the same material as the first shell, extending from the first cavity of the first shell, and having a first position about a incisal edge surface of the first cavity for a first stage of the treatment plan to interface with first teeth of a second jaw to provide a non-occlusal fit between the first and second jaws;
a second appliance of the series of appliances comprising a second shell having a plurality of cavities therein that receive the teeth of the first jaw in a second stage of the treatment plan;
a second bite adjustment structure formed from the same material as the second shell, extending from the cavity of the second shell, and having a second position with respect to the first cavity of the first appliance different from the first position with respect to a incisal edge surface of the cavity of the second appliance, the second position being for a second stage of the treatment plan and designed to interface with a first tooth of the second jaw.
47. The system of claim 46, the first height being based on an interface with a first tooth of the second jaw when the first appliance is worn and the first and second jaws are toothed.
48. The system of claim 46, wherein the first and second bite adjustment structures extend from a cavity of one of first and second shells that receive the anterior teeth.
49. The system of claim 48, wherein the second height is closer to a incisal edge surface of the cavity than the first bite adjustment structure.
50. The system of claim 46, wherein the series of appliances comprises:
a third appliance of the series of appliances comprising a third shell having a plurality of cavities therein that receive the teeth of the first jaw in a third stage of the treatment plan;
a third bite adjustment structure formed from the same material as the third shell, extending from the cavity of the third shell, and having a third position with respect to the incisal edge surfaces of the cavity of the third appliance different than the first and second positions with respect to the cavities of the first and second appliances, the third position being for a third stage of the treatment plan and designed to interface with the first teeth of the second jaw.
51. The system of claim 46, wherein the first bite adjustment structure provides a non-occlusal fit between the first jaw and the second jaw when the first appliance is worn by the patient.
52. A system, comprising:
a first series of appliances progressively implementing stages of a treatment plan for a patient having a first jaw and a second jaw, each appliance of the first series of appliances comprising a shell having a plurality of cavities therein that receive teeth of the first jaw;
wherein a plurality of appliances in the series of appliances comprise a first bite adjustment structure formed from the same material as a respective shell extending from a respective first cavity of the respective shell, the bite adjustment structure being positioned a distance from a incisal edge surface of the respective first cavity and having a first plane in contact with teeth of a second jaw; and is
Wherein a height with respect to the respective first cavity varies for a plurality of appliances of the series of appliances.
53. The system of claim 52, wherein the stage of the treatment plan repositions the patient's teeth from a first arrangement to a final arrangement, and the distance of the respective bite adjustment structure relative to the incisal edge surface of the respective first cavity decreases for the ongoing stage of the treatment plan.
54. The system of claim 52, wherein the distance is based on an interface with teeth of the second jaw when the respective appliances of the first series of appliances are worn and the first and second jaws are engaged.
55. The system of claim 52, further comprising a second series of appliances that receive the teeth of the second jaw.
56. The system of claim 55, wherein the first plane contacts a incisal edge surface of the second series of appliances.
Background
The present disclosure relates generally to the field of dental treatment. More particularly, the present disclosure relates to systems, methods, computing device readable media, and devices for bite (bite) adjustment structures for treatment plans.
Dental treatment may include, for example, restorative procedures and/or orthodontic procedures. Restorative procedures may be designed to implant a denture (e.g., crown, bridge inlay, filling, veneering, etc.) within a patient's oral cavity. Orthodontic procedures may include repositioning misaligned teeth and altering the bite configuration for improved surface appearance and/or function of the teeth. Orthodontic repositioning can be achieved by, for example, applying a controlled force to one or more teeth over a period of time.
As an example, orthodontic repositioning may be provided by a dental procedure that uses an alignment appliance (appliance) for realigning teeth. Such appliances may use a thin shell of material having elastic properties, referred to as an "aligner," that generally conforms to the teeth of the user, yet is slightly misaligned with the current configuration of the teeth.
The placement of such appliances on the teeth can provide controlled forces at specific locations to gradually move the teeth to new configurations. Repeating this process with successive appliances in a progressive configuration can move the teeth through a series of intermediate arrangements to a final desired arrangement.
Such systems typically use materials such as: which is lightweight and/or transparent to provide a set of appliances that can be used sequentially as the teeth move, new appliances can be implemented to move the teeth further.
In many cases, the patient may be maloccluded, wherein the patient's teeth are not properly aligned. One example of malocclusion is a deep bite, which is a severe condition of overbite in which the patient's lower teeth are overlapped by the upper teeth and the lower incisors come into contact with the gingival tissue in the upper arch of the jaw. Deep bites can cause aesthetic problems and/or problems with health consequences such as damage to the roots of the upper teeth, damage to the gingival tissue of the upper arch of the jaw, and/or wear of the lower teeth from frictional contact with the upper teeth, among others.
Some previous methods of correcting a patient's deep bite condition may include pushing (intrusion) anterior teeth (e.g., incisors and/or canines) and/or pushing (expulsion) posterior teeth (e.g., premolars and/or molars). The extrusion of the posterior teeth may be facilitated by the use of: bite pressure increasing tabs (e.g., metal blocks attached to the inner (lingual) surface of the upper anterior teeth to reduce contact between posterior teeth in the opposing jaw and allow more eruption); an anterior bite plate that contacts the anterior dentition while allowing the posterior teeth to erupt (e.g., in a minor patient); a double occlusal block (e.g., one of the blocks with an inclined occlusal plane (occlualslane) is placed over the upper dentition and the other over the lower dentition to reduce contact between the posterior teeth), etc. However, in adult patients, extrusion of posterior teeth may lead to unstable results. The pushing-in of the anterior teeth may be facilitated by: anchor-like bends (e.g., metal anchors on molars, which are used to apply upward force to incisors); a J-shaped hook-shaped dental appliance; a bow-expanding screw; detour archwires that bypass the premolars and/or canines by extending the span between the molars and incisors to maintain reduced forces, etc. Another previous method of correcting a deep bite condition in a patient may be orthodontic surgical correction.
Drawings
Fig. 1 illustrates a perspective view of a tooth position adjustment appliance including a plurality of bite adjustment structures applied to a set of teeth according to one or more embodiments of the present disclosure.
Fig. 2 illustrates a perspective view of a digital model of a jaw including a plurality of bite adjustment structures positioned on incisors according to various embodiments of the present disclosure.
Fig. 3A illustrates a perspective view of a portion of a digital model of a jaw corresponding to a first stage of treatment including a plurality of digital bite adjustment structures positioned thereon according to a plurality of embodiments of the present disclosure.
Fig. 3B illustrates a perspective view of a portion of a digital model of a jaw corresponding to a second stage of treatment including a plurality of digital bite adjustment structures positioned thereon according to a plurality of embodiments of the present disclosure.
Fig. 3C illustrates a perspective view of a portion of a digital model of a jaw corresponding to a third stage of treatment including a plurality of digital bite adjustment structures positioned thereon according to a plurality of embodiments of the present disclosure.
Fig. 3D illustrates a perspective view of a portion of a digital model of a jaw corresponding to a fourth stage of treatment including a plurality of digital bite adjustment structures positioned thereon according to a plurality of embodiments of the present disclosure.
Fig. 4 illustrates a perspective view of a digital model of a jaw including a plurality of digital bite adjustment structures positioned on digital canines, according to various embodiments of the present disclosure.
Fig. 5 illustrates a perspective view of a digital model of a jaw including a plurality of digital bite adjustment structures positioned on digital posterior teeth, in accordance with various embodiments of the present disclosure.
Fig. 6 illustrates a perspective view of a portion of a tooth position adjustment appliance including a plurality of bite adjustment structures positioned thereon according to various embodiments of the present disclosure.
Figure 7A illustrates a cross-sectional view of a portion of the appliance shown in figure 6 taken along cut line 7A-7A, according to various embodiments of the present disclosure.
Figure 7B illustrates a cross-sectional view of a portion of the appliance shown in figure 6 taken along cut line 7B-7B, in accordance with various embodiments of the present disclosure.
Figure 7C illustrates a cross-section similar to the cross-section shown in figure 7B of a portion of the first appliance and the second appliance, according to a number of embodiments of the present disclosure.
Figure 7D illustrates a cross-section similar to the cross-section shown in figure 7B of a portion of the first appliance and the second appliance, in accordance with a number of embodiments of the present disclosure.
Fig. 8 illustrates an interface between a plurality of bite adjustment structures on a tooth position adjustment appliance and a plurality of teeth on an opposing jaw according to a plurality of embodiments of the present disclosure.
Fig. 9A illustrates jaws in a first perpendicular relationship in accordance with various embodiments of the present disclosure.
Fig. 9B illustrates jaws in a second perpendicular relationship in accordance with various embodiments of the present disclosure.
Fig. 10 illustrates correction for overbite and superocclusions according to various embodiments of the present disclosure.
Fig. 11 illustrates a system for bite adjustment structure for a treatment plan in accordance with one or more embodiments of the present disclosure.
Detailed Description
In contrast to some previous approaches, various embodiments of the present disclosure feature tooth positioning appliances (e.g., aligners) that include a plurality of bite adjustment structures positioned thereon in a treatment-specific manner. For example, the bite adjustment structure can be placed according to the stage of treatment associated with the appliance. All appliances in one, several, or a series of appliances can include bite adjustment structures that are positioned (e.g., with shape and position) for various stages of a treatment plan associated with each appliance. In some embodiments, the bite adjustment structure can be formed from the same material as the appliance and/or formed simultaneously with the appliance.
In the following detailed description of the present disclosure, reference is made to the accompanying drawings that form a part hereof, and in which is shown by way of illustration how various embodiments of the disclosure may be practiced. These embodiments are described in sufficient detail to enable those skilled in the art to practice the embodiments of this disclosure, and it is to be understood that other embodiments may be utilized and that steps and/or structural changes may be made without departing from the scope of the present disclosure. As used herein, a "plurality" of a particular thing can be referred to as more than one such thing (e.g., a plurality of bite adjustment structures can be referred to as more than one bite adjustment structure).
The figures herein follow a numbering convention in which the first digit corresponds to the figure number and the remaining digits identify an element or component in the drawing. Similar numbers may be used to identify similar elements or components between different figures. For example, 106 may reference element "06" in fig. 1, and a similar element may reference 606 in fig. 6. As will be appreciated, elements shown in the various embodiments herein can be added, exchanged, and/or removed to provide a number of additional embodiments of the present disclosure. Additionally, as will be understood, the proportion and the relative scale of the elements provided in the figures are intended to illustrate specific embodiments of the present disclosure, and should not be taken in a limiting sense.
Fig. 1 illustrates a perspective view of a tooth position adjustment appliance 102 including a plurality of bite adjustment structures 106 applied to a set of teeth 104 in accordance with one or more embodiments of the present disclosure. In some embodiments, an appliance according to the present disclosure can include a plurality of progressive tooth position adjustment appliances. Appliances such as appliance 102 shown in fig. 1 can be used to progressively deliver a treatment plan, for example, by affecting progressive repositioning of individual teeth in the jaw and other suitable uses. Appliances such as appliance 102 can be manufactured according to a virtual tooth model that has caused the positions of a plurality of teeth to be adjusted according to one or more embodiments of the present disclosure.
The appliance can include any positioners, retainers, and/or other removable appliances for completing and maintaining tooth positioning in connection with dental treatment. These appliances may be used by the treatment person in the executed treatment plan. For example, a treatment plan can include the use of a set of appliances created according to the models described herein.
The orthotic (e.g., orthotic 102 in fig. 1) can be fabricated, for example, from a polymeric shell, and/or formed from other materials, having a plurality of cavities therein (e.g., cavity 107-1, cavity 107-2, collectively referred to herein as cavity 107). Cavity 107 can be designed (e.g., shaped) to receive one or more teeth 104 and/or to apply a force to reposition one or more teeth 104 of a jaw from one tooth arrangement to a successive tooth arrangement. The shell may be designed to fit over a plurality of teeth 104 present in the upper and/or lower jaw, or in most cases over all of the teeth 104.
The orthotic 102 can include a plurality of bite adjustment structures 106 formed from the same material as the shell. In some embodiments, the bite adjustment structure 106 can be formed from the same material as the housing as a continuous body. The bite adjustment structure 106 can be formed simultaneously with the shell (e.g., from the same base material), such as during a vacuum forming process, the material is vacuum formed over a model of the teeth that is formed based on data representing the user's teeth.
The housing can include cavities 107 (e.g., each cavity 107 corresponding to a tooth, respectively). The bite adjustment structure 106 can be part of the cavity 107. Cavities such as cavity 107-3 that do not include bite adjustment structure 106 can be shaped to match a particular tooth. For example, cavity 107-3 can be shaped to mate with three surfaces of a corresponding tooth to be received therein. The three surfaces can be an anterior (buccal) surface 128, a posterior (lingual) surface 126, and an occlusal (incisal edge) surface 124. Cavity 107-3 may be slightly misaligned with the current configuration of a particular tooth (e.g., to facilitate alignment of the particular tooth to a desired configuration), however cavity 107-3 can generally conform to the shape of the particular tooth such that there is not too much space between cavity 107-3 and the particular tooth when appliance 102 is worn.
In contrast, a cavity, such as cavity 107-1, including bite adjustment structure 106 can be shaped to match the two surfaces of a particular tooth. For incisors or canines, the two surfaces can be the anterior (buccal) surface 128 and the occlusal (incisal) surface 124. An interior (lingual) surface 126 of cavity 107-1 can include bite adjustment structure 106 extending therefrom. The bite adjustment structure 106 can form a portion of the cavity 107-1 such that when worn on a particular tooth, there is a space between the tooth and the bite adjustment structure 106. Fig. 7B and 7C illustrate this space in more detail.
The bite adjustment structure 106 can extend from the appliance 102 toward the inside of the mouth (in the buccal-lingual direction) and is designed to interface with a tooth of a jaw opposite the jaw on which the appliance 102 is intended to be worn. For example, the appliance 102 can be designed to fit over teeth in the user's upper jaw, and the bite adjustment structure 106 can be designed to interface with teeth in the user's lower jaw. The shape (e.g., size and/or contour, angle, etc.) and location (e.g., location on the cavity) of each bite adjustment structure 106 can be tailored to the stage of the treatment plan for which the appliance 102 is designed. For example, successive appliances created according to a treatment plan may have bite adjustment structures 106 shaped and/or positioned differently. The particular bite adjustment structure 106 can have a shape and position specific to a particular stage of the treatment plan based on at least one of the interface with the particular tooth of the opposing jaw, the intended use, and the orientation of the tooth on which the bite adjustment structure 106 is positioned. The bite adjustment structure 106 having a shape and position specific to a particular stage of treatment can have an advantageous effect over previous methods that use universal and/or uniform attachments that are not specific to a treatment stage, and therefore, may not accurately provide the desired correction for a treatment stage during their use. Such inaccurate treatment can lead to disadvantages such as extended treatment plans, the need to revise treatment plans, and/or unnecessary user discomfort. In contrast, various embodiments of the present disclosure allow for more timely, accurate, and/or comfortable execution of a treatment plan.
In some embodiments, the edge 101 of cavity 107 opposite the occlusal (incisal) surface 124 of cavity 107 can be contoured to extend beyond the gum line 108 of the user. The extension of the housing beyond the gum line 108 of the jaw can help distribute reaction forces (e.g., opposing the multiple forces applied to the bite adjustment structure 106) to other portions of the jaw.
Although not specifically illustrated, in some embodiments, the upper appliance (the appliance designed to fit over the teeth of the user's upper jaw) and the lower appliance (the appliance designed to fit over the teeth of the user's lower jaw) can include a plurality of bite adjustment structures for a particular stage in the treatment plan. Bite adjustment structures can be included on only one of the upper and lower appliances at a particular stage in the treatment plan. A particular stage in the treatment plan may not include any bite adjustment structures on either the upper or lower appliance. Particular stages in the treatment plan can include bite adjustment structures on the cavities corresponding to the incisors, canines, premolars, and/or molars, and/or combinations thereof.
The bite adjustment structure on the upper appliance can be designed to interface with teeth of the lower jaw, and the bite adjustment structure on the lower appliance can be designed to interface with teeth of the upper jaw. As used herein, a bite adjustment structure that is "designed to interface with teeth of an opposing jaw" can mean that the bite adjustment structure is designed to interface with teeth of the opposing jaw that are covered or not covered by another appliance. In some embodiments, the bite adjustment structure on the cavity of the first appliance can be designed to interface with a correspondingly disposed structure on the cavity of the second appliance on the opposing jaw (e.g., as illustrated and described in fig. 7D).
The upper appliance can include a plurality of bite adjustment structures 106 on an interior side (e.g., lingual side) of a cavity 107 designed to receive the upper anterior teeth. The plurality of bite adjustment structures 106 are capable of interfacing with the lower anterior teeth and receiving internal forces from the lower anterior teeth when the user bites (e.g., thereby providing a non-bite (dis) occlusion between the user's posterior teeth). In some embodiments, the appliance 102 can be designed to selectively distribute a reaction force (as opposed to an internal force created by a user's bite) to the posterior superior dentition.
The bite adjustment structure 106 can be designed to provide a non-bite between opposing jaws. Providing a malocclusion between opposing jaws can allow for adjustment (e.g., correction) of the perpendicular relationship between the upper and lower jaws. That is, the bite adjustment structure 106 can be designed and intended to adjust the vertical relationship between the upper and lower jaws, and/or the vertical relationship between individual teeth in the upper and lower jaws. In some embodiments, the orthotic 102 can be designed to: the plurality of teeth 104 on which the appliance 102 is worn are repositioned while the bite adjustment structure 106 provides a non-occlusions between the opposing jaws. Providing a non-bite fit between the opposing jaws can help prevent the appliances on the opposing jaws from interacting (e.g., contacting, allowing force interaction, etc.) with each other (e.g., other than at the bite adjustment structure 106). Providing a non-occlusal fit between opposing jaws enables adjustment of a user's occlusal plane (e.g., a global occlusal plane). Such adjustment can be temporary (e.g., while wearing the appliance 102) and/or more permanent (e.g., by allowing the pushing out of teeth such as molars). For example, the bite adjustment structure 106 can be designed to: when the user bites, a non-bite between the opposing posterior teeth is provided (e.g., in some cases, multiple anterior teeth of the user may contact bite adjustment structures 106 on the appliance worn on the opposing jaws, which can prevent the user's posterior teeth from biting). As used herein, "non-occlusions" include providing spaces between corresponding teeth of opposing jaws such that the teeth do not bind to and/or contact each other.
Fig. 2 illustrates a perspective view of a digital model 214 of a jaw including a plurality of bite adjustment structures 210 positioned on incisors according to various embodiments of the present disclosure. Various embodiments of the present disclosure include instructions executable by a processor (e.g., software) that are fixable in a non-transitory computing device readable medium to model a jaw (e.g., including teeth, roots, gums, and/or support structures, etc.) of a user. The instructions can be executed to create and/or modify a treatment plan to incrementally adjust the user's teeth and/or bite, among other adjustments, via application of a series of appliances as described herein. The instructions can be executed to provide a modified model of the jaw of the user for each of the various stages of the treatment plan to fabricate a physical model corresponding to the digital model 214 (e.g., via rapid prototyping such as stereolithography). The physical model can be used to fabricate an appliance thereon (e.g., via thermoforming).
According to various embodiments of the present disclosure, instructions can be executed to position a plurality of digital bite adjustment structures 210 on a corresponding plurality of digital teeth 212 of a digital model 214 of a jaw. The instructions can be executed to position the digital bite adjustment structure 210 on the digital teeth of the digital model 214 of the jaw at a particular stage of treatment and/or to adjust the position of the digital bite adjustment structure 210 for a subsequent stage of treatment. The digital model 214 of the jaws can be different at various stages of treatment (e.g., the positioning of the digital teeth can be changed) according to the treatment plan. Instructions can be executed to adjust the position of the digital bite adjustment structure 210 (e.g., to help achieve a desired change in the digital model 214 of the jaw) based on changes in the digital model 214 of the jaw between treatment stages and/or based on expected changes in subsequent treatment stages.
For each stage of treatment, the instructions can be executed to model the force applied to the digital model 214 of the jaw by the appliance corresponding to that stage (simulating the actual force applied to the user's solid jaw by a physical solid appliance). These forces can include forces applied to the digital model 214 of the jaw by appliances that are slightly out of alignment with the current configuration of the digital teeth and/or include internal forces applied to the aligner by the user (e.g., when the user is biting on the bite adjustment structure). Instructions can be executed to adjust the shape of the digital model 214 of the jaw such that the corresponding appliances formed thereon disperse reaction forces (as opposed to internal forces applied by the user to the bite adjustment structure) to a plurality of posterior teeth of the user's solid jaw.
Any of the plurality of digital models illustrated and/or described herein (e.g., fig. 2, 3A-3D, 4, 5, etc.) can represent stages of a treatment plan, can be used to model forces applied to the digital models, can be used to create physical models, for the shaping of solid appliances thereon, can be used to directly manufacture the solid appliances (without the need to create physical models), and the like.
The positioning and/or adjustment of the positioning of the digital bite adjustment structure 210 on the digital model 214 of the jaw can be automatic (e.g., by software operations based on modeling the forces for a particular stage of treatment), manual (e.g., by operations of an operator interacting with the digital model via an interface with a computing device), or a combination thereof. Likewise, the shape (e.g., size, orientation (e.g., various angles relative to a reference)) and/or attachment position (on the digital teeth) of the digital bite adjustment structure 210 can be automatically set by software, by manual operation (e.g., an operator can specify the necessary criteria for the digital bite adjustment structure 210 and/or modify default criteria provided by the software), or a combination of both.
As described herein, bite adjustment structures can be used to provide non-occlusions and/or to adjust canine guidance among other uses. The instructions to position the digital bite adjustment structure 210 can incorporate the results of the instructions to model the forces used to reposition the digital teeth 212. For example, the instructions can be executed to model a first amount of force for repositioning a corresponding number of digital teeth 212 a first distance according to a first stage of the treatment plan (the "first" representing an arbitrary stage, not necessarily an initial stage), and the instructions can be executed to incorporate results that simulate the first amount of force in order to position the digital bite adjustment structure 212. The instructions executed to adjust the position of the digital bite adjustment structure 212 can incorporate the results of the following instructions: the instructions are executed to calculate a second amount of force to reposition a second number of digital teeth 212 a second distance according to a second stage of the treatment plan (e.g., a stage subsequent to the first stage, not necessarily consecutive).
According to various embodiments of the present disclosure, there is no need to attach a physical bite adjustment structure to a user's physical teeth in order to manufacture an appliance including a bite adjustment structure therein. With digital modeling, an impression of the user's teeth (without a solid attachment) can be made, and digital bite adjustment structures 210 can be added with software. Such an embodiment may be beneficial in reducing the sitting time of a user in a professional's office and/or reducing the use of materials associated with the physical attachment, which can reduce costs. Such an embodiment can be beneficial in reducing discomfort that a user may have associated with a physical attachment, even if the physical attachment is temporary.
Fig. 3A illustrates a perspective view of a portion of a
Fig. 3B illustrates a perspective view of a portion of a
The "first phase" does not necessarily refer to the initial phase of the treatment plan, but may be a relative term with respect to other phases. For example, the "first phase" may be the second phase of a 50-phase treatment plan, while the "second phase" shown in fig. 3B may be the tenth phase of a 50-phase treatment plan, while the "third phase" shown in fig. 3C may be the 30 th phase of a 50-phase treatment plan, and the "fourth phase" shown in fig. 3D may be the 40 th phase of a 50-phase treatment plan.
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