CN109064863A - A kind of application method of centric relation position apparatus for demonstrating - Google Patents
A kind of application method of centric relation position apparatus for demonstrating Download PDFInfo
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- CN109064863A CN109064863A CN201811211836.0A CN201811211836A CN109064863A CN 109064863 A CN109064863 A CN 109064863A CN 201811211836 A CN201811211836 A CN 201811211836A CN 109064863 A CN109064863 A CN 109064863A
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- 238000000034 method Methods 0.000 title claims abstract description 17
- 238000004088 simulation Methods 0.000 claims description 25
- 230000007935 neutral effect Effects 0.000 claims description 9
- 210000000281 joint capsule Anatomy 0.000 claims description 3
- 241001653121 Glenoides Species 0.000 abstract description 7
- 239000003814 drug Substances 0.000 abstract description 2
- 230000003449 preventive effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- 206010061274 Malocclusion Diseases 0.000 description 2
- 230000002146 bilateral effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 210000000988 bone and bone Anatomy 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001575 pathological effect Effects 0.000 description 1
- 239000011505 plaster Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/28—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine
- G09B23/283—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for medicine for dentistry or oral hygiene
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- Medicinal Chemistry (AREA)
- Public Health (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Computational Mathematics (AREA)
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- Chemical & Material Sciences (AREA)
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- Mathematical Physics (AREA)
- Pure & Applied Mathematics (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Dental Tools And Instruments Or Auxiliary Dental Instruments (AREA)
- Instructional Devices (AREA)
Abstract
A kind of centric relation position apparatus for demonstrating comprising, bottom plate, upper bracket, lower jaw simulate frame, upper dental cast and lower dental cast.Its application method includes the following steps that step A needs to prepare the upper dental cast and the lower dental cast according to teaching, and step B makes the upper dental cast and the lower dental cast fitting.Step C makes the upper dental cast and the lower dental cast form central occlusion, observes movement relation when central occlusion.Step D simulates different centric relation positions, thus influence of the observable difference centric relation position to occluding relation.The application method of centric relation position apparatus for demonstrating provided by the present invention, the variation of teeth occluding relation brought by the prominent variation with the positional relationship of glenoid of condyle can intuitively be showed, bring clear and intuitive impression so as to understand to Oral preventive medicine and clinical oral doctor and analyze centric relation position.
Description
Technical Field
The invention relates to the field of teaching auxiliary tools, in particular to a use method of a centering relation position demonstration device.
Background
Fig. 1 is a schematic diagram of the bone structure of a human head, and as shown in fig. 1, the central relationship is the positional relationship between a lower jaw 101 and an upper jaw 102, and the positional relationship between a condyle 103 in a glenoid fossa. When the maxillary and mandibular teeth do not define a stable maxillomandibular relationship, the only stable connection available between the maxillomandibular teeth is the positional relationship of the condyles 103 to the glenoid fossa. Therefore, the median relationship can be clinically used to establish median occlusion. There are many definitions of The median relationship, and seven versions are already defined in "The Glossaryof Prosthodontic Terms". The current latest version of the definition of the centering relationship is: the condyles are located at the uppermost and foremost position of the glenoid fossa.
For complex clinical cases such as occlusal reconstruction, determining median occlusion, determining non-median occlusion, and determining vertical distance are the three most important factors in occlusal reconstruction. With determination of median occlusion being the most central problem. When the residual upper and lower jaws can not determine the stable occlusion relation of the upper and lower jaws or the original occlusion relation has pathological problems, a new median occlusion relation needs to be established again. That is, the most important clinical meaning of the median occlusal relationship is to guide the doctor to determine the median occlusal relationship in complicated cases such as occlusion reconstruction.
For example, when studying and treating "adult mandibular posterior malocclusion", the different states of the mesial relation position and the mesial occlusion cause a shift in the position of the condyles 103, and if the shift in the position of the condyles 103 can be visually displayed, it can bring clear and intuitive feelings to the oral medical students and oral clinicians for understanding and analyzing "adult mandibular posterior malocclusion".
In the process of oral medicine teaching and training, the used teaching aid is usually a common oral orthopaedic model sold in the market, or the theoretical position of the central relation position and the central occlusion relation is displayed by utilizing the occlusal frame, but the condylar position of the common oral orthopaedic model sold in the market is usually fixed and cannot be changed, and the occlusal frame is used for converting and displaying the central relation position and the central occlusal position according to a specific tooth plaster model, so that the displaying of the condylar position by the occlusal frame is not intuitive.
Disclosure of Invention
The object of the present invention is to provide a device for demonstrating the neutral position of a vehicle, which reduces or avoids the above mentioned problems.
In order to solve the technical problems, the invention provides a use method of a central relation position demonstration device, the central relation position demonstration device comprises a bottom plate, an upper bracket, a lower jaw simulation frame, an upper tooth model and a lower tooth model, wherein the upper tooth model is provided with a horizontal connecting rod, the lower tooth model is provided with a fixing clamp, the upper bracket is fixedly connected with the bottom plate, the upper bracket comprises an axial first vertical rod, a positioning hole for connecting with the horizontal connecting rod is arranged on the first vertical rod, two second vertical rods are radially and symmetrically arranged on the upper bracket, mounting holes for simulating a joint socket are symmetrically arranged on the two second vertical rods, the two mounting holes are detachably connected with a connecting rod, the lower jaw simulation frame comprises two L-shaped bodies for simulating a lower jaw and a cross rod fixedly connected with the two L-shaped bodies, the cross rod is detachably connected with the fixing clamp, the L-shaped body is provided with a connecting hole which is rotatably connected with the connecting rod, the diameter of the connecting rod is smaller than that of the mounting hole, an air bag used for simulating a joint disc and a joint capsule is arranged in the mounting hole, and a connecting spring is arranged between the lower jaw simulation frame and the upper support. The use method of the medical device comprises the following steps,
step A, preparing the upper tooth model and the lower tooth model according to teaching requirements, assembling the upper tooth model on the upper bracket, and assembling the lower tooth model on the lower jaw simulation frame.
And step B, connecting the lower jaw simulation frame with the upper frame through a connecting spring, enabling the connecting hole to correspond to the mounting hole in position, inserting the connecting rod, and rotatably connecting the L-shaped body with the two second vertical rods so as to enable the upper tooth model and the lower tooth model to be attached.
And C, adjusting the position of the horizontal connecting rod in the positioning hole so as to adjust the position of the upper tooth model, forming the middle occlusion between the upper tooth model and the lower tooth model, manually rotating the lower jaw simulation frame, and observing the motion relation during the middle occlusion.
And D, adjusting the air bag as required, and simulating different neutral relation positions by changing the positions of the connecting rods in the mounting holes, so that the influence of the different neutral relation positions on the occlusion relation can be observed.
Preferably, the horizontal connecting rod is a threaded rod, and the positioning hole is a light hole.
Preferably, the diameter of the mounting hole is 1.5 times or more greater than the diameter of the connecting rod.
Preferably, the gasbag is three gasbag bodies that the order sets up, includes the middle gasbag body that is located directly below the mounting hole axis and the lateral gasbag body of bilateral symmetry.
The use method of the median relationship position demonstration device provided by the invention can intuitively show the change of the tooth occlusion relationship caused by the change of the position relationship between the condyles and the glenoid fossa, thereby bringing clear and intuitive feeling to oral medical students and oral clinicians for understanding and analyzing the median relationship position.
Drawings
The drawings are only for purposes of illustrating and explaining the present invention and are not to be construed as limiting the scope of the present invention. Wherein,
FIG. 1 is a schematic diagram of the skeleton structure of a human head;
FIG. 2 is a schematic diagram of a partially exploded perspective view of a neutral position demonstration apparatus according to an embodiment of the present invention;
FIG. 3 is a schematic view of the coaxial connection between the connecting rod and the mounting hole in FIG. 2;
fig. 4 is a schematic view illustrating a state in which the connection rod is not coaxially connected with the mounting hole in fig. 2.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings. Wherein like parts are given like reference numerals.
Fig. 2 is a schematic partially exploded perspective view of a device for demonstrating a neutral position according to an embodiment of the present invention, and fig. 3 is a schematic view of a coaxial connection state between a connecting rod and a mounting hole in fig. 2; fig. 4 is a schematic view illustrating a state in which the connection rod is not coaxially connected with the mounting hole in fig. 2. Fig. 2 is mainly used for the principle representation, and therefore only a perspective schematic view of a partial structure in an exploded state is given. Referring to fig. 2 to 4, the present invention provides a centric relation position demonstration apparatus, which comprises a bottom plate 1, an upper bracket 2, a lower jaw simulation frame 3, an upper tooth model 4 and a lower tooth model 5, wherein the upper tooth model 4 is provided with a horizontal connecting rod 41, the lower tooth model 5 is provided with a fixing clip 51, the upper bracket 2 is fixedly connected with the bottom plate 1, the upper bracket 2 comprises an axial first upright rod 21, the first upright rod 21 is provided with a positioning hole 211 for connecting with the horizontal connecting rod 41, the upper bracket 2 is radially and symmetrically provided with two second upright rods 22, the two second upright rods 22 are symmetrically provided with mounting holes 221 for simulating a glenoid fossa, the two mounting holes 221 are detachably connected with a connecting rod 6, the lower jaw simulation frame 3 comprises two L-shaped bodies 31 for simulating a lower jaw and a cross rod 32 fixedly connected with the two L-shaped bodies 31, the cross bar 32 is detachably connected with the fixing clip 51, the L-shaped body 31 is provided with a connecting hole 311 for rotatably connecting with the connecting rod 6, the diameter of the connecting rod 6 is smaller than that of the mounting hole 221, an air bag for simulating a joint disc and a joint capsule is arranged in the mounting hole 221, and a connecting spring 7 is arranged between the lower jaw simulation frame 3 and the upper bracket 2.
Referring to fig. 1, the upper bracket 2 is fixed on the bottom plate 1 to provide an installation and display space for the lower jaw simulation frame 3, the upper dental model 4 and the lower dental model 5, the top of the upper bracket 2 is a cross structure, the first vertical rod 21 in the axial direction corresponding to the connection part of the upper bracket 2 and the bottom 1 is used for installing the upper dental model 4, and the position of the upper dental model 4 can be adjusted by adjusting the position of the horizontal connecting rod 41 in the positioning hole 211. The horizontal connecting rod 41 may be a threaded rod, and the positioning hole 211 may be a light hole, so that the position of the horizontal connecting rod 41 in the positioning hole 211 can be controlled by a nut (not shown).
The diameters of the mounting holes 221 of the two second uprights 22 may be greater than or equal to 1.5 times the diameter of the connecting rod 6. FIG. 3 is a schematic view of the coaxial connection between the connecting rod and the mounting hole in FIG. 2; fig. 4 is a schematic view illustrating a state in which the connection rod is not coupled to the mounting hole in fig. 2, referring to fig. 3 and 4, the airbag can be three airbag bodies arranged in sequence, including a middle airbag body 201 positioned right below the axis of the mounting hole 221, and lateral air bags 202 with bilateral symmetry, wherein the middle air bag 201 and the lateral air bags 202 can be independently controlled by inflation and deflation (inflation ports are not shown in the figure), both the middle airbag body 201 and the side airbag body 202 can approach the axial center position of the mounting hole 221 in a full state, this ensures control of the connecting rod 6 close to the upper side wall of the mounting hole 221, as shown in fig. 4, with the lateral air bag body 202 and the middle air bag body 201 on the left side in an inflated state, the lateral air bag body 202 on the right side in a deflated state, this makes it possible to bring the connecting rod 6 close to the upper right side wall of the mounting hole 221. Of course, the airbag may be a plurality of airbag bodies connected in sequence around the mounting hole 221, as long as the offset of the connecting rod 6 can be controlled by inflation and deflation.
The connecting rod 6 is coaxially connected with the connecting hole 311, so that the position change of the connecting rod 6 can embody the position change of the L-shaped body 31, namely the lower jaw simulation frame 3, and the position change of the lower jaw simulation frame 3 can drive the position change of the lower jaw simulation frame 5 due to the fact that the lower jaw simulation frame 5 is connected to the cross rod 32 through the fixing clip 51, so that the relationship between the center relation position and the center occlusion position can be visually displayed. The L-shaped body 31 can be placed between or outside the two second vertical rods 22, and as long as the connecting rod 6 is coaxial with the connecting hole 311, the position of the L-shaped body 31 has no influence on the rotation of the lower jaw simulation frame 3.
A connecting spring 7 is arranged between the lower jaw simulation frame 3 and the upper bracket 2, two connecting springs 7 can be arranged, one end of each connecting spring is connected to the upper bracket 2, the other end of each connecting spring is arranged on the L-shaped body 31, so that the upper tooth model 4 can be ensured to be in contact with the lower tooth model 5, the lower tooth model 5 can be manually operated to be separated from the upper tooth model 4 in the teaching process, and the occlusion relation between the lower tooth model 5 and the upper tooth model 4 in the center occlusion position and the center relation position can be demonstrated.
The application method of the center relation position demonstration device provided by the invention comprises the following steps:
step A, preparing the upper tooth model 4 and the lower tooth model 5 according to teaching requirements, assembling the upper tooth model 4 on the upper bracket 2, and assembling the lower tooth model 5 on the lower jaw simulation frame 3. That is to say, according to the characteristics of the tooth models at different age stages, the upper tooth model 4 and the lower tooth model 5 can be prepared by injection molding by using plastic materials, and in the preparation process, the fixing clip 51 can be integrally formed according to the size of the cross rod 32, so that the interference fit between the fixing clip 51 and the cross rod 32 can be ensured, and the connection tightness of the lower tooth model 5 during assembly can be ensured. The horizontal connecting rod 41 may be made of a plastic material integrally formed with the body of the upper model 4, or may be made by fixing a metal rod to the body of the upper model 4 by means of screw connection or the like after the body of the upper model 4 is made.
And step B, connecting the lower jaw simulation frame 3 with the upper bracket 2 through a connecting spring 7, then enabling the connecting hole 311 to correspond to the mounting hole 221 in position, inserting the connecting rod 6, and rotatably connecting the L-shaped body 31 with the two second vertical rods 22. Thereby fitting the upper dental model 4 and the lower dental model 5.
And step C, adjusting the position of the horizontal connecting rod 41 in the positioning hole 211 so as to adjust the position of the upper tooth model 4, forming the median occlusion between the upper tooth model 4 and the lower tooth model 5, manually rotating the lower jaw simulation frame 3, and observing the motion relation during the median occlusion.
And D, adjusting the air bag as required, and simulating different neutral relation positions by changing the positions of the connecting rods 6 in the mounting holes 221 so as to observe the influence of the different neutral relation positions on the occlusion relation.
The use method of the median relationship position demonstration device provided by the invention can intuitively show the change of the tooth occlusion relationship caused by the change of the position relationship between the condyles and the glenoid fossa, thereby bringing clear and intuitive feeling to oral medical students and oral clinicians for understanding and analyzing the median relationship position.
It should be appreciated by those of skill in the art that while the present invention has been described in terms of several embodiments, not every embodiment includes only a single embodiment. The description is given for clearness of understanding only, and it is to be understood that all matters in the embodiments are to be interpreted as including technical equivalents which are related to the embodiments and which are combined with each other to illustrate the scope of the present invention.
The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent alterations, modifications and combinations can be made by those skilled in the art without departing from the spirit and principles of the invention.
Claims (4)
1. A use method of a central relation position demonstration device is characterized by comprising a bottom plate, an upper bracket, a lower jaw simulation frame, an upper tooth model and a lower tooth model, wherein the upper tooth model is provided with a horizontal connecting rod, the lower tooth model is provided with a fixing clamp, the upper bracket is fixedly connected with the bottom plate, the upper bracket comprises an axial first vertical rod, a positioning hole used for being connected with the horizontal connecting rod is formed in the first vertical rod, two second vertical rods are radially and symmetrically arranged on the upper bracket, mounting holes used for simulating joint sockets are symmetrically formed in the two second vertical rods, the two mounting holes are detachably connected with a connecting rod, the lower jaw simulation frame comprises two L-shaped bodies used for simulating lower jaws and cross rods fixedly connected with the two L-shaped bodies, and the cross rods are detachably connected with the fixing clamp, the L-shaped body is provided with a connecting hole which is used for being rotatably connected with the connecting rod, the diameter of the connecting rod is smaller than that of the mounting hole, an air bag used for simulating a joint disc and a joint capsule is arranged in the mounting hole, and a connecting spring is arranged between the lower jaw simulation frame and the upper support. The use method of the medical device comprises the following steps,
step A, preparing the upper tooth model and the lower tooth model according to teaching requirements, assembling the upper tooth model on the upper bracket, and assembling the lower tooth model on the lower jaw simulation frame.
And step B, connecting the lower jaw simulation frame with the upper frame through a connecting spring, enabling the connecting hole to correspond to the mounting hole in position, inserting the connecting rod, and rotatably connecting the L-shaped body with the two second vertical rods so as to enable the upper tooth model and the lower tooth model to be attached.
And C, adjusting the position of the horizontal connecting rod in the positioning hole so as to adjust the position of the upper tooth model, forming the middle occlusion between the upper tooth model and the lower tooth model, manually rotating the lower jaw simulation frame, and observing the motion relation during the middle occlusion.
And D, adjusting the air bag as required, and simulating different neutral relation positions by changing the positions of the connecting rods in the mounting holes, so that the influence of the different neutral relation positions on the occlusion relation can be observed.
2. The method of claim 1, wherein the horizontal connecting bar is a threaded bar and the locating hole is a light hole.
3. The method of claim 1, wherein the diameter of the mounting hole is 1.5 times or more greater than the diameter of the connecting rod.
4. The method of claim 1, wherein the airbag is a sequence of three airbag bodies including a center airbag body directly below the mounting hole axis and bilaterally symmetric side airbag bodies.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811211836.0A CN109064863B (en) | 2018-10-18 | 2018-10-18 | Application method of center relation position demonstration device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811211836.0A CN109064863B (en) | 2018-10-18 | 2018-10-18 | Application method of center relation position demonstration device |
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| Publication Number | Publication Date |
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| CN109064863A true CN109064863A (en) | 2018-12-21 |
| CN109064863B CN109064863B (en) | 2020-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811211836.0A Active CN109064863B (en) | 2018-10-18 | 2018-10-18 | Application method of center relation position demonstration device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115294844A (en) * | 2022-07-18 | 2022-11-04 | 东南大学 | Bionic occlusal frame |
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2018
- 2018-10-18 CN CN201811211836.0A patent/CN109064863B/en active Active
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|---|---|---|---|---|
| CN2298789Y (en) * | 1997-05-28 | 1998-12-02 | 徐颂成 | Whole dental prosthesis jaw position relation detecting and checking device |
| JP2008006144A (en) * | 2006-06-30 | 2008-01-17 | Tsukio Yamanaka | Articulator and facebow, useful for odontotherapy by mounting maxillomandibular model on articulator so as to rapidly and accurately reproduce all mandibular positions in odontotherapy, and recording position of condyle corresponding to condyle head of lower jaw |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115294844A (en) * | 2022-07-18 | 2022-11-04 | 东南大学 | Bionic occlusal frame |
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| CN109064863B (en) | 2020-07-03 |
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