CN113244574A

CN113244574A - Lower jaw grading control training device

Info

Publication number: CN113244574A
Application number: CN202110651591.9A
Authority: CN
Inventors: 吉欣欣; 阮佩琳; 罗志伟; 欧海宁
Original assignee: Fifth Affiliated Hospital of Guangzhou Medical University
Current assignee: Fifth Affiliated Hospital of Guangzhou Medical University
Priority date: 2021-06-10
Filing date: 2021-06-10
Publication date: 2021-08-13

Abstract

The invention provides a lower jaw grading control trainer, which relates to the technical field of medical instruments and comprises the following components: the shell is provided with an opening, the upper jaw support is hinged with the lower jaw support, the first end of the upper jaw support and the first end of the lower jaw support are both positioned in the shell, the second end of the upper jaw support and the second end of the lower jaw support penetrate through the opening and are positioned outside the shell, the second end of the upper jaw support is provided with upper tooth glue, and the second end of the lower jaw support is provided with lower tooth glue; the lower jaw grading control trainer provided by the invention relieves the technical problem that grading training cannot be realized by using a related oral lip closing trainer.

Description

Lower jaw grading control training device

Technical Field

The invention relates to the technical field of medical instruments, in particular to a mandibular grading control trainer.

Background

The lower jaw hierarchical control training ware among the prior art mainly has the lip closure training ware, and the lip closure training ware mainly includes white facing, body, support and spring etc. places during the use between upper and lower lip and tooth, and upper and lower lip wraps the gutta-percha and does the motion of closing the lip for practice the closure of lip and the up-and-down motion of upper and lower jaw, but the closed training ware of lip can't realize the training in grades among the prior art.

Disclosure of Invention

The invention aims to provide a mandibular grading control trainer to relieve the technical problem that the oral lip closing trainer in the related art cannot realize grading training.

The invention provides a mandibular classification control trainer comprising: the upper jaw support is hinged to the lower jaw support, a first end of the upper jaw support and a first end of the lower jaw support are located in the shell, a second end of the upper jaw support and a second end of the lower jaw support penetrate through the opening and are located outside the shell, upper dental cement is arranged at the second end of the upper jaw support, and lower dental cement is arranged at the second end of the lower jaw support;

first elastic component with the upper jaw prop with the lower jaw prop is connected, so that the upper dental cement with the lower dental cement has the motion trend of keeping away from each other, adjust locking Assembly respectively with the upper jaw prop with the lower jaw prop is connected, is used for adjusting and fixing the upper jaw prop with contained angle between the lower jaw prop.

Furthermore, the adjusting and locking assembly comprises a guide groove, a limiting groove and a guide post, the guide groove is arranged in the shell and is arc-shaped with the hinge axis of the maxillary support and the mandibular support as the axis, and the side wall of the guide groove is provided with a plurality of limiting grooves at intervals;

the upper jaw prop and/or the lower jaw prop is equipped with the guide post, the guide post passes the guide way and along its axial correspond ground with the upper jaw prop or the lower jaw prop sliding connection, the lateral wall of guide post be equipped with the spacing arch of spacing groove looks adaptation, work as the guide post drives spacing arch is located when the casing, the guide post can be followed the guide way slides, works as the guide post drives spacing arch is located when the spacing inslot, the guide post rigidity.

Furthermore, adjust locking Assembly still includes the second elastic component, the second elastic component with the guide post is connected, is used for making spacing arch has the butt the motion trend of the inner wall of casing, the guide post can drive spacing arch rotates around its self axis.

Furthermore, the adjusting and locking assembly further comprises a double-fin key, and the double-fin key is located outside the shell and connected with the guide column.

Further, adjust locking Assembly including adjusting pole, slider and retaining member, adjust the pole with the first end of upper jaw is propped up with the slider is articulated, the first end of lower jaw is propped up is equipped with the spout, the slider with spout sliding fit, be equipped with on the casing with the corresponding locking groove of spout, the retaining member can pass the locking groove will the slider is fixed in the spout.

Further, adjust locking Assembly and include locking bolt, the upper jaw prop with the lower jaw prop is equipped with the screw thread through-hole, locking bolt follow the outside of casing passes the casing, and with the upper jaw prop with lower jaw prop screw-thread fit.

Further, the first elastic member includes a coil spring connected to a first end of the maxillary branch and an end of the mandibular branch.

Further, the casing includes first casing and second casing, the opening is located first casing, the second casing can dismantle connect in first casing is kept away from open-ended one end, coil spring is located in the second casing, and with the upper jaw prop with the connection can be dismantled to the lower jaw prop.

Furthermore, the second shell is connected with the first shell in a clamping mode.

Furthermore, the mandibular advancement grading control trainer also comprises a U-shaped fixed arm, the middle part of the fixed arm is connected with the second end of the mandibular advancement support, the opening of the fixed arm deviates from the mandibular advancement support, and the middle part and the two ends of the fixed arm are both provided with the lower gutta-percha.

The invention provides a mandibular classification control trainer comprising: the shell is provided with an opening, the upper jaw support is hinged with the lower jaw support, the first end of the upper jaw support and the first end of the lower jaw support are both positioned in the shell, the second end of the upper jaw support and the second end of the lower jaw support penetrate through the opening and are positioned outside the shell, the second end of the upper jaw support is provided with upper tooth glue, and the second end of the lower jaw support is provided with lower tooth glue; the first elastic piece is connected with the upper jaw support and the lower jaw support so that the upper dental cement and the lower dental cement have a movement trend of being far away from each other, and the adjusting and locking assembly is connected with the upper jaw support and the lower jaw support respectively and used for adjusting and fixing an included angle between the upper jaw support and the lower jaw support. When the locking component is adjusted to unlock the upper jaw support and the lower jaw support, the upper jaw support and the lower jaw support can rotate around the hinge axis, and the elastic part enables the upper gutta-percha and the lower gutta-percha to have a movement trend of being away from each other, so that the dynamic use of the lower jaw grading control trainer provided by the invention can be realized; when the locking component is adjusted to fix the relative position between the upper jaw support and the lower jaw support, the static use of the lower jaw grading control trainer provided by the invention can be realized, and the upper jaw support and the lower jaw support can be adjusted to different angles and fixed, thereby realizing grading training.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic diagram of a mandibular advancement control trainer according to an embodiment of the present invention;

fig. 2 is a schematic view illustrating connection between a maxillary support and a mandibular support in the mandibular classification control trainer according to the embodiment of the present invention;

fig. 3 is a schematic structural diagram of a guide post in the mandibular advancement control trainer according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a shell in the mandibular advancement control trainer according to an embodiment of the present invention.

Icon: 100-a housing; 110-an opening; 120-a first housing; 130-a second housing; 131-clamping protrusions; 200-maxillary branch; 210-upper moment arm; 211-gutta-percha; 220-lower handle; 230-a hinged axis; 300-mandible branch; 310-lower moment arm; 311-lower gutta-percha; 320-upper handle; 400-a first resilient member; 510-a guide groove; 520-a limiting groove; 530-guide post; 540-limit bump; 550-double wing type key; 600-fixed arm.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1 and 2, a mandibular advancement control trainer according to an embodiment of the present invention includes: the adjustable dental prosthesis comprises a shell 100, a maxillary support 200, a mandibular support 300, a first elastic part 400 and an adjusting and locking assembly, wherein the shell 100 is provided with an opening 110, the maxillary support 200 is hinged with the mandibular support 300, a first end of the maxillary support 200 and a first end of the mandibular support 300 are both positioned in the shell 100, a second end of the maxillary support 200 and a second end of the mandibular support 300 both penetrate through the opening 110 and are positioned outside the shell 100, a second end of the maxillary support 200 is provided with a dental cement 211, and a second end of the mandibular support 300 is provided with a dental cement 311; the first elastic member 400 is connected with the maxillary support 200 and the mandibular support 300 so that the maxillary glue 211 and the mandibular glue 311 have a tendency to move away from each other, and the adjusting and locking assemblies are connected with the maxillary support 200 and the mandibular support 300, respectively, for adjusting and fixing an included angle between the maxillary support 200 and the mandibular support 300.

Specifically, the upper jaw support 200 comprises an upper force arm 210 and a lower handle 220 which are fixedly connected with each other, the lower jaw support 300 comprises a lower force arm 310 and an upper handle 320 which are fixedly connected with each other, the upper handle 320 and the lower handle 220 are both positioned in the casing 100, the upper force arm 210 and the lower force arm 310 are both positioned outside the casing 100, the upper tooth glue 211 is arranged at one end of the upper force arm 210, which is far away from the lower handle 220, the lower tooth glue 311 is arranged at one end of the lower force arm 310, which is far away from the upper handle 320, the upper jaw support 200 is hinged with the lower jaw support 300 through a hinge shaft 230, the hinge shaft 230 is connected with the casing 100, and the axis of the hinge shaft 230 passes through the connection between the upper force arm 210 and the lower handle 220 and the connection between the lower force arm 310 and the upper handle 320. The first elastic member 400 is connected between the upper handle 320 and the lower handle 220, when the distance between the upper gutta-percha 211 and the lower gutta-percha 311 is the largest, the first elastic member 400 is in a natural state, and when the distance between the upper gutta-percha 211 and the lower gutta-percha 311 is smaller than the largest value, the first elastic member 400 is in a compressed state, so that the upper gutta-percha 211 and the lower gutta-percha 311 have a movement tendency of being away from each other. The adjusting and locking assembly is connected with the housing 100, the upper handle 320 and the lower handle 220, respectively, for adjusting an angle between the upper force arm 210 and the lower force arm 310 and fixing the angle after the adjustment is completed.

In some embodiments, the adjusting and locking assembly includes a guide groove 510, a limiting groove 520 and a guide post 530, the guide groove 510 is disposed in the housing 100 and has an arc shape with the hinge axis of the maxillary support 200 and the mandibular support 300 as the axis, and a plurality of limiting grooves 520 are disposed at intervals on the sidewall of the guide groove 510; the maxillary support 200 and/or mandibular support 300 is provided with a guide post 530, the guide post 530 passes through the guide slot 510 and is slidably connected to the maxillary support 200 or mandibular support 300 along the axial direction thereof, a limit protrusion 540 fitted to the limit slot 520 is provided on the sidewall of the guide post 530, the guide post 530 is slidable along the guide slot 510 when the guide post 530 drives the limit protrusion 540 to be located in the housing 100, and the position of the guide post 530 is fixed when the guide post 530 drives the limit protrusion 540 to be located in the limit slot 520.

Specifically, the guide groove 510 penetrates through the side wall of the housing 100 and is disposed opposite to the upper handle 320 and the lower handle 220, two side walls of the guide groove 510 are respectively provided with the same number of limiting grooves 520, and the limiting grooves 520 of the two side walls are disposed opposite to each other in a one-to-one correspondence manner. The guide posts 530 may be provided only on the upper handle 320, or the guide posts 530 may be provided only on the lower handle 220, or the guide posts 530 may be provided on both the upper handle 320 and the lower handle 220, in this embodiment, the guide posts 530 are provided on both the upper handle 320 and the lower handle 220, and the guide posts 530 on the upper handle 320 are slidably connected to the upper handle 320 in the axial direction thereof, and the guide posts 530 on the lower handle 220 are fixedly connected to the lower handle 220. As shown in fig. 3, two limit protrusions 540 are provided on the guide post 530, the two limit protrusions 540 are symmetrically arranged about the axis of the guide post 530, the guide post 530 on the lower handle 220 is fixed at one end of the guide groove 510 through the limit protrusion 540, so as to fix the position of the lower handle 220, when the limit protrusion 540 on the upper handle 320 is located in the casing 100, the guide post 530 on the upper handle 320 can slide along the guide groove 510, so as to implement the dynamic use of the mandibular grading control trainer provided by the embodiment of the present invention, when the guide post 530 drives the limit protrusion 540 to slide along the axis thereof, and the limit protrusion 540 is clamped into the limit groove 520, the position of the upper handle 320 is fixed, so as to implement the static use of the mandibular grading control trainer provided by the embodiment of the present invention, furthermore, the limit protrusions 540 are matched with different limit grooves 520, and the included angles between the upper force arm 210 and the lower force arm 310 are different, thereby enabling hierarchical training.

Further, the adjusting and locking assembly further comprises a second elastic member connected to the guiding post 530 for making the limiting protrusion 540 have a movement tendency to abut against the inner wall of the casing 100, and the guiding post 530 can drive the limiting protrusion 540 to rotate around its own axis.

The second elastic component includes rubber pad or coil spring etc. and in this embodiment, the second elastic component includes coil spring, is equipped with the cylindrical groove on the last handle 320, and guide post 530 and cylindrical groove sliding fit, coil spring are located between the diapire in cylindrical groove and guide post 530 to be connected with the diapire in cylindrical groove and guide post 530, when spacing arch 540 and the inner wall butt of casing 100, coil spring is in compression state. When the guide post 530 is rotated to enable the two limiting protrusions 540 to be located in the guide groove 510, the guide groove 510 and the limiting protrusions 540 can slide along the guide groove 510, so that dynamic training is achieved, when the included angle between the upper force arm 210 and the lower force arm 310 needs to be fixed, the guide post 530 is pressed and located in the shell 100, the guide post 530 slides in the guide groove 510 to adjust the included angle between the upper force arm 210 and the lower force arm 310, when the angle between the upper force arm 210 and the lower force arm 310 is adjusted to a needed angle, the limiting protrusions 540 are opposite to the limiting grooves 520 in the corresponding positions and release the guide post 530, the limiting protrusions 540 enter the corresponding limiting grooves 520 under the action of restoring force of the second elastic element, and accordingly the positions of the guide post 530 and the upper handle 320 are fixed. The arrangement of the second elastic member enables the limiting protrusion 540 to be automatically clamped into the limiting groove 520 from the inside of the housing 100, so that the angle between the upper force arm 210 and the lower force arm 310 can be conveniently fixed.

The adjustment locking assembly further includes a double-wing key 550, the double-wing key 550 being located outside the housing 100 and connected to the guide post 530. The operator can press or rotate the guide post 530 through the double-wing key 550, thereby facilitating the operation.

Further, the outer wall of the housing 100 is provided with angle scale marks, and the scale marks are arranged along the side wall of the guide groove 510, so that quantitative analysis is facilitated.

As another embodiment, the adjusting and locking assembly includes an adjusting lever, a sliding member, and a locking member, the adjusting lever is hinged to the first end of the upper jaw support 200 and the sliding member, the first end of the lower jaw support 300 is provided with a sliding groove, the sliding member is slidably engaged with the sliding groove, the housing 100 is provided with a locking groove corresponding to the sliding groove, and the locking member can pass through the locking groove to fix the sliding member to the sliding groove.

The side of the upper handle 320 opposite to the inner wall of the casing 100 is provided with a sliding groove, the sliding groove extends along the length direction of the upper handle 320, the sliding member is in a flat plate shape and is in sliding fit with the sliding groove, one end of the adjusting rod is hinged with the lower handle 220, the other end of the adjusting rod is hinged with the sliding member, and the hinge axes at the two ends are both vertical to the sliding member. The housing 100 is provided with a locking groove corresponding to the position and shape of the sliding groove, and the locking member includes a locking screw which passes through the locking groove from the outside of the housing 100 to be engaged with the threaded through hole of the sliding member. When the locking screw unlocks the sliding part, the sliding part can slide in the sliding groove, so that dynamic use of the lower jaw grading control trainer provided by the embodiment of the invention is realized, when the sliding part is locked in the sliding groove by abutting against the bottom wall of the sliding groove through rotating the locking screw, static use of the lower jaw grading control trainer provided by the embodiment of the invention can be realized, when the included angle between the upper force arm 210 and the lower force arm 310 is adjusted, the sliding part slides in the sliding groove, and after the required angle is adjusted, the sliding part is locked in the sliding groove through the locking part, so that decomposition training is realized.

As another embodiment, the adjustment locking assembly includes a locking bolt, and the maxillary support 200 and the mandibular support 300 are provided with threaded through-holes, and the locking bolt passes through the housing 100 from the outside of the housing 100 and is screw-engaged with the maxillary support 200 and the mandibular support 300. The housing 100 is provided with a through-hole through which a locking bolt passes from the outside of the housing 100 and is screw-engaged with the maxillary and mandibular supports 200 and 300 in turn. When the bolt is screwed to enable the lower jaw support 300 to be matched with the shell 100 to clamp the upper jaw support 200, the included angle between the upper force arm 210 and the lower force arm 310 is fixed, static use is achieved, when the locking bolt is unscrewed, the upper jaw support 200 and the lower jaw support 300 can rotate relatively, and therefore dynamic use is achieved.

Further, the first elastic member 400 may include a rubber pad, a coil spring, or the like, and in this embodiment, the first elastic member 400 includes a coil spring connected to the first end of the maxillary support 200 and the one end of the mandibular support 300. Specifically, the coil spring is located between the upper handle 320 and the lower handle 220, and two ends of the coil spring are respectively connected with the upper handle 320 and the lower handle 220, when the distance between the upper gutta-percha 211 and the lower gutta-percha 311 is the largest, the coil spring is in a natural state, and when the distance between the upper gutta-percha 211 and the lower gutta-percha 311 is smaller than the largest, the coil spring is in a compressed state, so that the upper gutta-percha 211 and the lower gutta-percha 311 have a movement trend of being away from each other, so that the upper gutta-percha 211 and the lower gutta-percha 311 can be automatically restored to the original positions, and the coil spring provides resistance for training.

As shown in fig. 4, the housing 100 includes a first housing 120 and a second housing 130, the opening 110 is disposed on the first housing 120, the second housing 130 is detachably connected to an end of the first housing 120 away from the opening 110, and the coil spring is disposed in the second housing 130 and detachably connected to the maxillary support 200 and the mandibular support 300.

The second housing 130 and the first housing 120 may be connected by a screw or a snap, in this embodiment, the second housing 130 and the first housing 120 are connected by a snap. Specifically, be equipped with the joint recess on the first casing 120, be equipped with on the second casing 130 with the protruding 131 complex joint arch 131 of joint, joint arch 131 realizes being connected with dismantling of first casing 120 with the joint recess cooperation second casing 130. The opposite side surfaces of the upper handle 320 and the lower handle 220 are respectively provided with a spring socket, and the two ends of the spiral spring are detachably connected with the upper handle 320 and the lower handle 220 through the spring sockets respectively. After the second housing 130 is detached from the first housing 120, the coil springs with different elastic forces may be replaced to adjust the resistance, and the spring with a larger resistance may be replaced to perform a further resistance exercise when the resistance exercise with the smallest resistance is completed, thereby improving the chewing strength and the jaw control ability through the resistance exercise.

Further, mandibular advancement control trainer still includes fixed arm 600 that is the U type, and the middle part of fixed arm 600 is connected with the second end of mandible branch 300, and the opening deviates from mandible branch 300, and the middle part and the both ends of fixed arm 600 all are equipped with down gutta-percha 311.

As shown in fig. 2, the middle portion of the fixing arm 600 is fixedly connected to the lower force arm 310, two free ends extend in a direction away from the lower force arm 310, the upper end surface of the middle portion of the fixing arm 600 is provided with a lower gutta-percha 311, and the lower gutta-percha 311 and the upper gutta-percha 211 are both semi-U-shaped, so that the upper incisor and the lower incisor are clamped and are not easy to slip, and do not move due to the change of the mouth shape and the lower jaw position. The two opposite side surfaces of the two free ends of the fixing arm 600 are also provided with the lower gutta-percha 311, the upper gutta-percha 211 and the lower gutta-percha 311 are provided with anti-skidding structures, the fixing arm 600 is designed into a square and round fastening molar at the molar position by combining the growth characteristics of the mandible teeth, the mandible is fixed through the fixing arm 600 during training of mandible grading control, the situation that compensatory action or mandible jerky and the like influence treatment effect is avoided, and meanwhile, tongue and mandible separation movement can be promoted by independently training tongue movement through fixing the mandible.

The mandibular advancement control trainer provided by the embodiment of the invention comprises: the adjustable dental prosthesis comprises a shell 100, a maxillary support 200, a mandibular support 300, a first elastic part 400 and an adjusting and locking assembly, wherein the shell 100 is provided with an opening 110, the maxillary support 200 is hinged with the mandibular support 300, a first end of the maxillary support 200 and a first end of the mandibular support 300 are both positioned in the shell 100, a second end of the maxillary support 200 and a second end of the mandibular support 300 both penetrate through the opening 110 and are positioned outside the shell 100, a second end of the maxillary support 200 is provided with a dental cement 211, and a second end of the mandibular support 300 is provided with a dental cement 311; the first elastic member 400 is connected with the maxillary support 200 and the mandibular support 300 so that the maxillary glue 211 and the mandibular glue 311 have a tendency to move away from each other, and the adjusting and locking assemblies are connected with the maxillary support 200 and the mandibular support 300, respectively, for adjusting and fixing an included angle between the maxillary support 200 and the mandibular support 300. When the locking assembly is adjusted to unlock the upper jaw support 200 and the lower jaw support 300, the upper jaw support 200 and the lower jaw support 300 can rotate around the hinge axis, and the elastic piece enables the upper gutta-percha 211 and the lower gutta-percha 311 to have a movement trend of being away from each other, so that the dynamic use of the lower jaw grading control trainer provided by the embodiment of the invention can be realized; when the locking component is adjusted to fix the relative position between the upper jaw support 200 and the lower jaw support 300, the static use of the lower jaw grading control trainer provided by the embodiment of the invention can be realized, and the upper jaw support 200 and the lower jaw support 300 can be adjusted to different angles and fixed, so that grading training can be realized.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A mandibular advancement control trainer, comprising: the adjustable jaw bone forceps comprise a shell (100), a maxillary support (200), a mandibular support (300), a first elastic part (400) and an adjusting and locking assembly, wherein the shell (100) is provided with an opening (110), the maxillary support (200) is hinged to the mandibular support (300), the first end of the maxillary support (200) and the first end of the mandibular support (300) are both positioned in the shell (100), the second end of the maxillary support (200) and the second end of the mandibular support (300) penetrate through the opening (110) and are positioned outside the shell (100), the second end of the maxillary support (200) is provided with a tooth paste (211), and the second end of the mandibular support (300) is provided with a mandibular tooth paste (311);

first elastic component (400) with upper jaw prop (200) with lower jaw prop (300) are connected, so that upper dental cement (211) with lower dental cement (311) have the motion trend of keeping away from each other, adjust locking Assembly respectively with upper jaw prop (200) with lower jaw prop (300) are connected, are used for adjusting and fixing upper jaw prop (200) with contained angle between lower jaw prop (300).

2. The mandibular advancement control trainer according to claim 1, wherein the adjustment locking assembly includes a guide groove (510), a stop groove (520), and a guide post (530), the guide groove (510) being provided in the housing (100) and having an arc shape centered on the hinge axis of the maxillary support (200) and the mandibular support (300), the guide groove (510) having a plurality of the stop grooves (520) spaced apart from each other along a side wall thereof;

the maxilla prop (200) and/or the mandible prop (300) are/is provided with the guide post (530), the guide post (530) passes through the guide groove (510) and corresponds along the axial direction thereof with the maxilla prop (200) or the mandible prop (300) are in sliding connection, the side wall of the guide post (530) is provided with a limit bulge (540) matched with the limit groove (520), when the guide post (530) drives the limit bulge (540) to be positioned in the shell (100), the guide post (530) can slide along the guide groove (510), and when the guide post (530) drives the limit bulge (540) to be positioned in the limit groove (520), the position of the guide post (530) is fixed.

3. Mandibular advancement control trainer according to claim 2, wherein the adjustment locking assembly further comprises a second elastic member connected to the guiding stud (530) for imparting a tendency for the restraining projection (540) to move against the inner wall of the housing (100), the guiding stud (530) being capable of bringing the restraining projection (540) into rotation about its own axis.

4. The mandibular advancement control trainer of claim 3, wherein the adjustment locking assembly further comprises a double-wing key (550), the double-wing key (550) being located outside the housing (100) and connected to the guide post (530).

5. The mandibular advancement control trainer of claim 1, wherein the adjustment and locking assembly comprises an adjustment lever pivotally connected to the first end of the maxillary support (200) and the sliding member, a sliding block slidably engaged with the sliding block at the first end of the mandibular support (300), and a locking member extending through the locking block to secure the sliding block to the sliding block, wherein a locking slot corresponding to the sliding block is formed in the housing (100).

6. The mandibular advancement control trainer of claim 1, wherein the adjustment locking assembly comprises a locking bolt, and wherein the maxillary support (200) and the mandibular support (300) are provided with threaded through holes, the locking bolt passing through the housing (100) from outside the housing (100) and being in threaded engagement with the maxillary support (200) and the mandibular support (300).

7. The mandibular advancement control trainer according to any one of claims 1-6, wherein the first resilient member (400) comprises a coil spring connected to a first end of the maxillary support (200) and an end of the mandibular support (300).

8. The mandibular advancement control trainer of claim 7, wherein the housing (100) comprises a first housing (120) and a second housing (130), the opening (110) being defined in the first housing (120), the second housing (130) being removably attached to the first housing (120) at an end remote from the opening (110), the coil spring being located within the second housing (130) and being removably attached to the maxillary support (200) and the mandibular support (300).

9. The mandibular advancement control trainer of claim 8, wherein the second housing (130) is snap-fit connected to the first housing (120).

10. The mandibular advancement control trainer according to any one of claims 1 to 6, further comprising a fixed arm (600) having a U-shape, wherein the fixed arm (600) has a middle portion connected to the second end of the mandibular support (300) and an opening facing away from the mandibular support (300), and wherein the middle portion and both ends of the fixed arm (600) are provided with the lower gutta percha (311).