CN213722533U - Shell-like dental instrument with jaw plate - Google Patents
Shell-like dental instrument with jaw plate Download PDFInfo
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- CN213722533U CN213722533U CN202022743438.2U CN202022743438U CN213722533U CN 213722533 U CN213722533 U CN 213722533U CN 202022743438 U CN202022743438 U CN 202022743438U CN 213722533 U CN213722533 U CN 213722533U
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Abstract
An aspect of the present invention provides a shell-like dental instrument having a jaw plate for adjusting a position of a lower jaw in a front-rear direction, comprising: the shell-shaped main body is integrated into a shell shape, a cavity for accommodating teeth is formed, the occlusal surface of the back tooth area protrudes towards the opposite jaw direction to form a jaw plate mounting table, and the top surface of the jaw plate mounting table protrudes towards the opposite jaw direction to form a first positioning structure; and the jaw plate is fixedly adhered to the jaw plate mounting table, the bottom surface of the jaw plate is recessed towards the jaw direction to form a second positioning structure matched with the first positioning structure, and a guide inclined plane is formed on one side of the front side and the back side of the jaw plate and is used for being matched with the guide inclined plane of the jaw plate to push the lower jaw forwards or backwards, wherein the mechanical strength of the structure of the jaw plate is higher than that of the shell-shaped main body.
Description
Technical Field
The present invention generally relates to a shell-like dental instrument having a jaw plate.
Background
In orthodontic treatment, jaws are often used to guide the lower jaw forward. At present, the shell-shaped dental instrument with a jaw plate is a cavity structure which is formed by integrally pressing a film with a shell-shaped main body, and the inventor of the application finds that the jaw plate has limited structural strength and is easy to bite down in the clinical use process, thereby influencing the correcting effect.
Therefore, there is a need to provide a new shell-like dental instrument with a jaw plate.
SUMMERY OF THE UTILITY MODEL
An aspect of the present invention provides a shell-like dental instrument having a jaw plate for adjusting a position of a lower jaw in a front-rear direction, comprising: the shell-shaped main body is integrated into a shell shape, a cavity for accommodating teeth is formed, the occlusal surface of the back tooth area protrudes towards the opposite jaw direction to form a jaw plate mounting table, and the top surface of the jaw plate mounting table protrudes towards the opposite jaw direction to form a first positioning structure; and the jaw plate is fixedly adhered to the jaw plate mounting table, the bottom surface of the jaw plate is recessed towards the jaw direction to form a second positioning structure matched with the first positioning structure, and a guide inclined plane is formed on one side of the front side and the back side of the jaw plate and is used for being matched with the guide inclined plane of the jaw plate to push the lower jaw forwards or backwards, wherein the mechanical strength of the structure of the jaw plate is higher than that of the shell-shaped main body.
In some embodiments, the bottom surface of the jaw plate is in facial contact with the top surface of the jaw plate mounting table.
In some embodiments, at least one of the lingual side and the buccal side of the jaw plate is recessed inwardly to form a light guide channel for directing external light into the second positioning structure and the bottom surface of the jaw plate to facilitate curing of the light-curable glue.
In some embodiments, at least one recess is formed in the bottom surface of the jaw plate to communicate the second location structure with the exterior.
In some embodiments, the jaw plate forms a continuous, smooth surface with a perimeter of the jaw plate mounting table.
In some embodiments, the jaw plate is a solid structure.
In some embodiments, the first and second positioning structures limit the freedom of the jaw plate on the occlusal surface.
In some embodiments, the first locating feature is a rectangular boss and the second locating feature is a corresponding rectangular recess.
In some embodiments, the top surface of the jaw plate mounting table and the bottom surface of the jaw plate are the same rectangle.
In some embodiments, the occlusal surface of the jaw plate is a concave slope that is higher on one end of the jaw plate than on the other end.
In some embodiments, the tooth receiving cavity has a geometry that matches the patient's teeth.
Drawings
The above and other features of the present application will be further explained with reference to the accompanying drawings and detailed description thereof. It is appreciated that these drawings depict only several exemplary embodiments in accordance with the disclosure and are therefore not to be considered limiting of its scope. The drawings are not necessarily to scale and wherein like reference numerals refer to like parts, unless otherwise specified.
FIG. 1 schematically illustrates a shell-like dental instrument having a jaw plate in one embodiment of the present application;
FIG. 2A schematically illustrates a shell-like body of the shell-like dental instrument of FIG. 1;
FIG. 2B schematically illustrates the jaw plate mounting table of the shell-like body of FIG. 2A;
FIG. 3A schematically illustrates a jaw plate of the shell-like dental instrument of FIG. 1;
FIG. 3B schematically illustrates a jaw plate of the shell-like dental instrument of FIG. 1;
FIG. 4 schematically illustrates the engagement of the upper and lower jaw plates in one embodiment of the present application;
FIG. 5 schematically illustrates a jaw plate in a further embodiment of the present application;
FIG. 5A schematically illustrates a cross-section of the jaw plate shown in FIG. 5;
FIG. 6 schematically illustrates a jaw plate in a further embodiment of the present application;
FIG. 7 schematically illustrates a jaw plate of an embodiment of the present application in cooperation with the jaw plate of FIG. 6; and
fig. 8 schematically illustrates the fit between the jaw plates of fig. 6 and 7 after they have been affixed to the shell-like body.
Detailed Description
The following detailed description refers to the accompanying drawings, which form a part of this specification. The exemplary embodiments mentioned in the description and the drawings are only for illustrative purposes and are not intended to limit the scope of the present application. Those skilled in the art, having benefit of this disclosure, will appreciate that many other embodiments can be devised which do not depart from the spirit and scope of the present application. It should be understood that the aspects of the present application, as described and illustrated herein, may be arranged, substituted, combined, separated, and designed in a wide variety of different configurations, all of which are within the scope of the present application.
To solve the problems of the conventional shell-shaped dental instruments having jaws, the inventors of the present application developed a new shell-shaped dental instrument having jaws.
Referring to FIG. 1, a shell-like dental instrument 100 having a jaw plate is schematically illustrated in one embodiment of the present application.
Shell-like dental appliance 100 is a shell-like dental appliance worn by the teeth of the upper jaw and includes a shell-like body 101 and a jaw plate 103. The shell-shaped body 101 is formed in an integral shell shape, and forms a cavity for receiving a tooth. The jaw plate 103 is provided on the occlusal surface of the posterior dental area of the shell-shaped body 101 and is protruded toward the jaw direction.
Although fig. 1 illustrates a shell-like dental instrument 100 provided with jaws 103 on only one side, it is to be understood that it is only an exemplary embodiment and that jaws may be provided on both the left and right posterior dental areas, depending on the actual requirements.
Referring to fig. 2A, a shell-like body 101 of the shell-like dental instrument 100 of fig. 1 is schematically illustrated. The shell-shaped body 101 is protruded in the opposite jaw direction from the rear tooth area occlusion surface to form a jaw plate mounting table 105 for mounting the jaw plate 103.
Referring to FIG. 2B, the jaw plate mount 105 of FIG. 2A is schematically illustrated. The jaw plate mounting base 105 has a first surface 1051 located on the opposite side of the shell-like body 101 to the jaw direction, and a first positioning structure 1053 formed to protrude from the first surface 1051 to the jaw direction. In this embodiment, the first surface 1051 is a flat surface, the jaw plate mount 105 is a generally trapezoidal body, and the positioning structure 1053 is a rectangular body.
Referring to fig. 3A and 3B, the jaw plate 103 of fig. 1 is schematically illustrated. The jaw plate 103 is a substantially trapezoidal body, and an occlusal surface 1031 is formed near the jaw direction, a leading inclined surface 1033 is formed near one end of the anterior teeth, and the two are connected with each other, and the included angle between the two is an obtuse angle. Wherein, in the occluded state, the occlusal surface 1031 contacts the opposing teeth. The lead bevel 1033 cooperates with a lead bevel of the opposing jaw plate to push the lower jaw forward. In one embodiment, the ramp 1033 can be outwardly convex to form a plurality of bumps to increase friction with the ramp of the jaw plate.
In one embodiment, the jaw plate 103 is solid to improve its mechanical strength. It will be appreciated in the light of the present application that the jaw plate 103 need not be solid, as long as the structure is mechanically stronger than the shell-like body 101.
The side of the jaw plate away from the opposing jaw (i.e., the bottom) forms a second surface 1035, the geometry of which matches the first surface 1051. Second surface 1035 is recessed inward to form second registration structures 1037 having a geometry that matches first registration structures 1053. By the cooperation of the first positioning structure 1053 and the second positioning structure 1037, the degree of freedom of the jaw plate 103 along the occlusal surface is limited to achieve positioning and mounting of the jaw plate 103.
A plurality of salient points are formed on the surface of the second positioning structure close to the opposite jaw direction so as to increase the surface area and further improve the bonding strength. A plurality of grooves are formed on the second surface 1035 to communicate the second positioning structures 1037 with the outside, so that air can be exhausted during bonding, on one hand, bonding can be smoother, and on the other hand, bonding reliability can be ensured.
In one embodiment, the shell-like body 101 may be fabricated using a hot-press film forming process. For example, a first three-dimensional digital model representing the dentition of a patient is obtained, then a jaw plate mounting table is added to a corresponding portion of the three-dimensional digital model to obtain a second three-dimensional digital model, then a male mold is made by using the second three-dimensional digital model control apparatus, and finally, a shell-shaped body 101 is formed by pressing a film on the male mold.
In one embodiment, the geometry of the cavity in which the shell-like body 101 receives the teeth matches the patient's teeth, except for the jaw plate mount 105.
It will be appreciated in light of the present disclosure that first surface 1051 and second surface 1035 are not limited to planar surfaces, and that they may be any suitable surface configuration, so long as they are compatible with each other. Similarly, the first positioning structure 1053 and the second positioning structure 1037 are not limited to rectangular bodies, and can be any suitable geometric shape, as long as they are matched with each other.
Referring to fig. 4, the fit of the maxillo plate 103 and the mandible plate 203 is schematically illustrated. The maxillomandibular plate 103 is fixed to a maxillomandibular plate mount 105 integrally formed on a shell-like body of a maxillomandibular shell-like dental instrument, and the mandible plate 203 is fixed to a mandible plate mount 205 integrally formed on a shell-like body of a mandible shell-like dental instrument.
Because the mandibular jaw plate 203 is located in an area near the cuspids, it is shorter in length than the maxillary jaw plate 103. In one embodiment, the occlusal surface of the mandibular jaw plate 203 is a curved surface.
The peripheral surfaces of the maxillary plate 103 and the maxillary plate mount 105 form a continuous and smooth surface, and the overall feeling between the two is improved. Similarly, the circumference of the mandibular jaw plate 203 and mandibular jaw plate mount 205 also form a continuous, smooth surface.
In the process of the upper and lower jaws occluding, the guiding inclined plane 1033 of the upper jaw plate 103 is contacted with the guiding inclined plane 2033 of the lower jaw plate 203, and the guiding inclined plane 1033 generates forward extrusion force to the guiding inclined plane 2033 along with the depth of the occlusion, thereby pushing the lower jaw forward.
Referring to fig. 5, a maxillary plate 103a of a further embodiment of the present application is schematically illustrated. The structure is generally similar to the maxillomandibular plate 103 shown in fig. 3A and 3B, but light guide grooves 1041a are formed at both sides of the cheek and tongue to be recessed inward, respectively, for guiding external light to the second positioning structures 1037a to facilitate curing of the light curing adhesive. Wherein the jaw plate 103a is made of a light transmissive material, e.g. a transparent polymer material.
In one embodiment, the jaw plate can be symmetrical in the front-back direction and the left-right direction respectively, namely, the front side and the back side of the jaw plate form the guide inclined planes, so that the installation is free from the directional requirement and convenient to install.
Referring to fig. 6, a jaw plate 103b in a further embodiment of the present application is schematically illustrated. Similar to the above embodiment, the jaw plate 103b may be adhesively fixed to a jaw plate mount formed on the shell-like body. The occlusal surface 1031b of the jaw plate 103b is a slightly concave slope, and one end of the slope 1033b is higher than the other end, or the other end is higher than the other end.
Referring to FIG. 7, there is schematically shown an opposing jaw plate 203b of an embodiment of the present application that cooperates with the jaw plate 103b of FIG. 6, and is similar in structure to the jaw plate 103b, except that it is shorter than the jaw plate 103b and is mounted adjacent to the cuspid area of the shell-like body. The occlusal surface 2031b of the jaw plate 203b is also a slightly concave slope with one end higher than the other end near the leading slope 2033b, or the end opposite the jaw plate.
Referring to fig. 8, the fit between the jaws 103b and 203b of fig. 6 and 7 is schematically illustrated. Since the jaw plate 103b is fixed to the jaw plate mount 105b formed on the shell body 101b of the maxillary shell-like dental instrument and the jaw plate 203b is fixed to the jaw plate mount 205b formed on the shell body 201b of the mandibular shell-like dental instrument, the occlusal surface of the occlusal surface 1031b of the jaw plate 103b and the occlusal surface 2031b of the jaw plate 203b is a slightly concave slope surface which is inclined downward from one end of the slope surface toward the other end, and thus can be brought into better contact with the opposing teeth.
In the conventional shell-shaped dental instrument having the jaw plate, the jaw plate is formed by integrally pressing a film with the shell-shaped body, which corresponds to a cavity formed in the shell-shaped body, and thus, the mechanical strength thereof is weak. Because the occlusal surface of the teeth has uneven geometry, the occlusal surface of the jaw plate is generally in point contact with the teeth of the jaw in the occlusal state. In this case, the partial pressure is large at the contact part between the occlusal surface of the jaw plate and the teeth of the jaw, and the jaw plate is easily collapsed due to occlusion because of its low mechanical strength.
Conversely, the jaw plate of the present application is a jaw plate mounting table fixedly mounted to the shell-like body in an adhesive manner, and is less likely to be broken by occlusion because its mechanical strength is higher than that of the shell-like body. Further, although the jaw plate is in point contact with the opposing jaw teeth, since it is in surface contact with the jaw plate mount, the force applied to the jaw plate mount is uniformly distributed over the entire force-applied surface (i.e., the contact surface between the jaw plate and the jaw plate mount), and in this case, the jaw plate mount is not easily broken. Furthermore, the jaw plate has a certain height, so that the cavity height of the jaw plate mounting platform is smaller than that of the traditional jaw plate integrally formed with the shell-shaped main body, and the overall mechanical strength of the shell-shaped dental instrument is further ensured.
While various aspects and embodiments of the disclosure are disclosed herein, other aspects and embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification. The various aspects and embodiments disclosed herein are for purposes of illustration only and are not intended to be limiting. The scope and spirit of the application are to be determined only by the claims appended hereto.
Likewise, the various diagrams may illustrate an exemplary architecture or other configuration of the disclosed methods and systems that is useful for understanding the features and functionality that may be included in the disclosed methods and systems. The claimed subject matter is not limited to the exemplary architectures or configurations shown, but rather, the desired features can be implemented using a variety of alternative architectures and configurations. In addition, to the extent that flow diagrams, functional descriptions, and method claims do not follow, the order in which the blocks are presented should not be limited to the various embodiments which perform the recited functions in the same order, unless the context clearly dictates otherwise.
Unless otherwise expressly stated, the terms and phrases used herein, and variations thereof, are to be construed as open-ended as opposed to limiting. In some instances, the presence of an extensible term or phrases such as "one or more," "at least," "but not limited to," or other similar terms should not be construed as intended or required to imply a narrowing in instances where such extensible terms may not be present.
Claims (11)
1. A shell-like dental instrument having a jaw plate for adjusting a position of a lower jaw in an anterior-posterior direction, comprising:
the shell-shaped main body is integrated into a shell shape, a cavity for accommodating teeth is formed, the occlusal surface of the back tooth area protrudes towards the opposite jaw direction to form a jaw plate mounting table, and the top surface of the jaw plate mounting table protrudes towards the opposite jaw direction to form a first positioning structure; and
the jaw plate is fixedly attached to the jaw plate mounting table, the bottom surface of the jaw plate is recessed towards the jaw direction to form a second positioning structure matched with the first positioning structure, and a guide inclined plane is formed on one side of the front side and the back side of the jaw plate and is used for being matched with the guide inclined plane of the jaw plate to push the lower jaw forwards or backwards, wherein the mechanical strength of the structure of the jaw plate is higher than that of the shell-shaped main body.
2. A shell-like dental instrument as in claim 1, wherein the bottom surface of the jaw plate is in face contact with the top surface of the jaw plate mount.
3. A shell-like dental implement according to claim 1, wherein at least one of the lingual and buccal sides of the jaw plate is recessed inwardly to form a light-directing channel for directing external light into the second locating formation and the bottom surface of the jaw plate to promote curing of the light-curable glue.
4. A shell-like dental instrument as in claim 1, wherein the jaw plate has at least one recess formed in a bottom surface thereof communicating the second locator structure with the exterior.
5. A shell-like dental instrument as in claim 1, wherein the jaws form a continuous, smooth surface with the circumference of the jaw mounting table.
6. A shell-like dental instrument as in claim 1, wherein the jaw plate is a solid structure.
7. A shell-like dental instrument as in claim 1, wherein the first and second locating features limit the freedom of the jaw plate on the occlusal surface.
8. A shell-like dental instrument as in claim 1, wherein the first detent structure is a rectangular boss and the second detent structure is a corresponding rectangular recess.
9. A shell-like dental instrument as in claim 8, wherein the top surface of the jaw plate mount and the bottom surface of the jaw plate are the same rectangle.
10. A shell-like dental implement according to claim 1, wherein the occlusal surface of the jaw plate is a concave ramp surface which is higher at one end opposite the jaw plate than at the other end.
11. A shell-like dental implement according to claim 1, wherein the geometry of the tooth-receiving cavity matches the patient's tooth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022743438.2U CN213722533U (en) | 2020-11-24 | 2020-11-24 | Shell-like dental instrument with jaw plate |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022743438.2U CN213722533U (en) | 2020-11-24 | 2020-11-24 | Shell-like dental instrument with jaw plate |
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| CN213722533U true CN213722533U (en) | 2021-07-20 |
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| CN202022743438.2U Active CN213722533U (en) | 2020-11-24 | 2020-11-24 | Shell-like dental instrument with jaw plate |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024056001A1 (en) * | 2022-09-13 | 2024-03-21 | 上海时代天使医疗器械有限公司 | Dental instrument and preparation method therefor |
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- 2020-11-24 CN CN202022743438.2U patent/CN213722533U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024056001A1 (en) * | 2022-09-13 | 2024-03-21 | 上海时代天使医疗器械有限公司 | Dental instrument and preparation method therefor |
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