CN209087231U - A kind of centric relation position apparatus for demonstrating - Google Patents

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.Centric relation position apparatus for demonstrating provided by the utility model, 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

A kind of centric relation position apparatus for demonstrating

Technical field

The utility model relates to tutor auxiliary platform apparatus field, in particular to a kind of centric relation position apparatus for demonstrating.

Background technique

Fig. 1 is human body head skeleton structural schematic diagram, and shown in Figure 1, centric relation is lower jaw 101 to the upper jaw 102 Positional relationship is prominent 103 positional relationship in glenoid of condyle.When maxillomandibular tooth not can determine that stable maxillary mandibular relation When, unique one utilizable is stably connected with the positional relationship that position is exactly condyle prominent 103 with glenoid between upper lower jaw.Cause This, clinically can establish central occlusion with centric relation.It is many for the definition of centric relation, in " The Glossary There are seven editions definition in of Prosthodontic Terms ".Latest edition is to the definition of centric relation at present: condyle is prominent Positioned at most upper, the most anteposition of glenoid.

For the clinical case of the complexity such as occlusal reconstruction, determines central occlusion, determine acentric occlusion, determine vertical range It is three most important elements in occlusal reconstruction.Wherein the determination of central occlusion is most crucial problem.When upper lower jaw remains tooth It can not determine that stable upper lower jaw occluding relation or original occluding relation have pathologic, at this moment will need again Establish new central occlusion relationship.That is the most important clinical meaning of centric relation refers to that guiding doctor is raw multiple in occlusal reconstruction etc. Central occlusion relationship is determined in miscellaneous diseases example.

For example, centric relation position is stung with center when " Adult Mandibular retraction patho-occlusion " is studied and treated The different conditions of conjunction will result in the offset of the position of condyle prominent 103, and as can intuitively showing the offset of the position of condyle prominent 103, then Understanding and analysis " Adult Mandibular retraction patho-occlusion " can be brought clearly to Oral preventive medicine and clinical oral doctor Intuitive impression.

In dentistry teaching and training process, used teaching aid is usually common commercial oral orthopaedics model, or Person closes frame using tooth to show the theoretical position of centric relation position Yu central occlusion relationship, but commonly commercial oral orthopaedics model What condyle position was usually fixed, it cannot change, and it is for being showed just according to specific tooth plaster cast to convert that tooth, which closes frame, Middle relationship position and central occlusion position, therefore tooth closes frame showing not intuitively for condyle position.

Utility model content

The technical problem to be solved by the present invention is to provide a kind of centric relation position apparatus for demonstrating, before being reduced or avoided The problem of face is previously mentioned.

In order to solve the above technical problems, the utility model proposes 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, and the upper dental cast is provided with a horizontal brace rod, described Lower dental cast is provided with a fixing clamp, and the upper bracket is fixedly connected with the bottom plate, and the upper bracket includes an axial direction The first upright bar, the location hole for connecting with the horizontal brace rod, the upper bracket diameter are provided in first upright bar To being symmetrical arranged there are two the second upright bar, two second upright bars are symmetrically arranged with the mounting hole for simulating glenoid, and two A mounting hole is detachably connected with a pitman, and the lower jaw simulation frame includes two for simulating the L-type of mandibular Ontology and the cross bar being fixedly connected with two L-type ontologies, the cross bar are detachably connected with the fixing clamp, the L Type ontology is provided with the connecting hole for being rotatably connected with the pitman, and the diameter of the pitman is less than the mounting hole Diameter, be provided with the air bag for simulating articular disc and joint capsule in the mounting hole, the lower jaw simulation frame and it is described on Connecting spring is provided between bracket.

Preferably, the horizontal brace rod is threaded rod, and the location hole is unthreaded hole.

Preferably, the diameter of the mounting hole is more than or equal to 1.5 times than the diameter of the pitman.

Preferably, the air bag is three air bag bodies of sequence setting, including being located at immediately below the mounting hole axis Center sleeve body and monosymmetric side airbag body.

Centric relation position apparatus for demonstrating provided by the utility model can intuitively show the prominent positional relationship with glenoid of condyle Variation brought by teeth occluding relation variation, so as to understand to Oral preventive medicine and clinical oral doctor and point Analysis centric relation position brings clear and intuitive impression.

Detailed description of the invention

Following drawings are only intended to schematically illustrate and explain the present invention, does not limit the model of the utility model It encloses.Wherein,

Fig. 1 is human body head skeleton structural schematic diagram；

Fig. 2 is the decomposed according to a kind of centric relation position apparatus for demonstrating of a specific embodiment of the utility model Stereochemical structure schematic illustration；

Fig. 3 is the schematic illustration of pitman and the coaxially connected state of mounting hole in Fig. 2；

Fig. 4 is the schematic illustration of pitman and the not coaxially connected state of mounting hole in Fig. 2.

Specific embodiment

For a clearer understanding of the technical features, objectives and effects of the utility model, now compareing Detailed description of the invention Specific embodiment of the present utility model.Wherein, identical component uses identical label.

Fig. 2 is the decomposed according to a kind of centric relation position apparatus for demonstrating of a specific embodiment of the utility model Stereochemical structure schematic illustration, Fig. 3 are the schematic illustration of pitman and the coaxially connected state of mounting hole in Fig. 2；Fig. 4 is Fig. 2 The schematic illustration of middle pitman and the not coaxially connected state of mounting hole.Fig. 2 is mainly used for principle statement, therefore only gives point The three-dimensional explanatory view of the part-structure of solution state.Referring to fig. 2 to shown in Fig. 4, the utility model provides a kind of center pass It is position apparatus for demonstrating comprising, bottom plate 1, upper bracket 2, lower jaw simulate frame 3, upper dental cast 4 and lower dental cast 5, the upper tooth mould Type 4 is provided with a horizontal brace rod 41, and the lower dental cast 5 is provided with a fixing clamp 51, the upper bracket 2 and the bottom Plate 1 is fixedly connected, the first upright bar 21 of the upper bracket 2 an including axial direction, be provided in first upright bar 21 for The location hole 211 that the horizontal brace rod 41 connects, the second upright bar 22 that there are two 2 radial symmetric of the upper bracket settings, two Second upright bar 22 is symmetrically arranged with the mounting hole 221 for simulating glenoid, and two mounting holes 221 are connect with one Stick 6 is detachably connected, lower jaw simulation frame 3 include two L-type ontologies 31 for simulating mandibular and with two L The cross bar 32 that type ontology 31 is fixedly connected, the cross bar 32 are detachably connected with the fixing clamp 51, and the L-type ontology 31 is arranged There is the connecting hole 311 for being rotatably connected with the pitman 6, the diameter of the pitman 6 is less than the mounting hole 221 Diameter, is provided with the air bag for simulating articular disc and joint capsule in the mounting hole 221, the lower jaw simulation frame 3 with it is described Connecting spring 7 is provided between upper bracket 2.

Shown in Figure 1, the upper bracket 2 is fixed on the bottom plate 1, simulates frame 3, the upper tooth mould for the lower jaw Type 4 and the lower dental cast 5 provide installation spacial flex, are cross-shaped structure at the top of the upper bracket 2, with the upper bracket 2 Axial first upright bar 21 corresponding with the connecting portion of the bottom 1 is used to install the upper dental cast 4, by adjusting Position of the horizontal brace rod 41 in the location hole 211, can also adjust the position of the upper dental cast 4.It is described Horizontal brace rod 41 can be threaded rod, and the location hole 211 can be unthreaded hole, (can not regarded in figure by nut thus Control position of the horizontal brace rod 41 in the location hole 211 out).

The diameter of the mounting hole 221 in two second upright bars 22 can be greater than than the diameter of the pitman 6 Equal to 1.5 times.Fig. 3 is the schematic illustration of pitman and the coaxially connected state of mounting hole in Fig. 2；Fig. 4 be Fig. 2 in pitman with The schematic illustration of the not coaxially connected state of mounting hole, as shown in figure 3 and figure 4, the air bag can be the three of sequence setting to ginseng A air bag body, including being located at center sleeve body 201 and monosymmetric lateral gas immediately below 221 axis of mounting hole Utricule 202, the center sleeve body 201 and the side airbag body 202 can individually carry out inflation/deflation control, and (inflating port is being schemed In be not shown), the center sleeve body 201 and the side airbag body 202 are close to the mounting hole 221 in full state Shaft core position, can ensure that control the pitman 6 close to the upper side wall of the mounting hole 221 in this way, it is as shown in Figure 4, left The side airbag body 202 and the center sleeve body 201 of side exist in inflated condition, the side airbag body 202 on right side Deflation status can thus make the pitman 6 close to the upper right side side wall of the mounting hole 221.Certainly, the air bag It is also possible to multiple air bag bodies of the sequential connection around the mounting hole 221, as long as the company can be controlled by inflation/deflation Take over the baton 6 offset.

The pitman 6 and the connecting hole 311 are coaxially connected, in this way, the change in location of the pitman 6 can body Reveal the L-type ontology 31, that is to say the change in location of lower jaw simulation frame 3, due to the lower dental cast 5 pass through it is described solid Clamp 51 is connected on the cross bar 32, and therefore, the change in location of the lower jaw simulation frame 3 can also drive the lower dental cast 5 change in location, so as to intuitively show the relationship of centric relation position, central occlusion position.The L-type ontology 31 can be placed in Between two second upright bars 22 or except, as long as the pitman 6 and the connecting hole 311 are coaxial, the L-type ontology 31 position does not just influence the rotation of lower jaw simulation frame 3.

It is provided with connecting spring 7 between the lower jaw simulation frame 3 and the upper bracket 2, the connecting spring 7, which can be, to be set There are two setting, one end is connected on the upper bracket 2, and the other end is arranged on the L-type ontology 31, in this way, can ensure described The contact of upper dental cast 4 and the lower dental cast 5, and can teaching process be manually operated the lower dental cast 5 with it is described on Dental cast 4 separates, and can also demonstrate the lower dental cast 5 with the upper dental cast 4 in central occlusion position and centric relation position Occluding relation.

The application method of centric relation position apparatus for demonstrating provided by the utility model are as follows:

Step A needs to prepare the upper dental cast 4 and the lower dental cast 5 according to teaching, and the upper dental cast 4 is filled It fits on the upper bracket 2, by the lower assembly of dental cast 5 on lower jaw simulation frame 3.That is, can be as needed According to all ages and classes stage tooth model the characteristics of, the upper dental cast is prepared using injection molding using plastic material 4 and the lower dental cast 5, during the preparation process, it can be integrally formed the fixing clamp 51 according to the size of the cross bar 32, in this way It can ensure the interference fit of the fixing clamp 51 and the cross bar 32, the connection of the lower dental cast 5 when so as to ensure assembly Tightness.The horizontal brace rod 41 can by being made of the integrally formed plastic material of ontology with the upper dental cast 4, After the ontology of the upper dental cast 4 can be formed into, modes are connected through a screw thread etc. using metallic rod and are fixed on the upper tooth mould It is made on the ontology of type 4.

Step B makes the lower jaw simulate frame 3 and connect with the upper bracket 2, then make the connection by connecting spring 7 Hole 311 is corresponding with 221 position of mounting hole, is inserted into the pitman 6, by the L-type ontology 31 and two the second upright bars 22 It is rotatably connected.To make the upper dental cast 4 and the lower dental cast 5 be bonded.

Step C adjusts position of the horizontal brace rod 41 in the location hole 211, so as to adjust the upper tooth mould The position of type 4 makes the upper dental cast 4 and the lower dental cast 5 form central occlusion, can be manually rotated the lower jaw simulation frame 3, Observe movement relation when central occlusion.

Step D adjusts the air bag as needed, by changing position of the pitman 6 in the mounting hole 221 Different centric relation positions are simulated, thus influence of the observable difference centric relation position to occluding relation.

Centric relation position apparatus for demonstrating provided by the utility model can intuitively show the prominent positional relationship with glenoid of condyle Variation brought by teeth occluding relation variation, so as to understand to Oral preventive medicine and clinical oral doctor and point Analysis centric relation position brings clear and intuitive impression.

It will be appreciated by those skilled in the art that although the utility model is described in the way of multiple embodiments , but not each embodiment only contains an independent technical solution.So narration is in specification just for the sake of clear For the sake of, the skilled in the art should refer to the specification as a whole is understood, and by skill involved in each embodiment Art scheme, which is regarded as, can be combined with each other into the modes of different embodiments to understand the protection scope of the utility model.

The above descriptions are merely exemplary embodiments of the present utility model, the model being not intended to limit the utility model It encloses.Any those skilled in the art, under the premise of not departing from the conceptions and principles of the utility model made equivalent variations, Modification and combination, should belong to the range of the utility model protection.

Claims (4)

1. a kind of centric relation position apparatus for demonstrating, which is characterized in that it includes that bottom plate, upper bracket, lower jaw simulate frame, upper tooth mould Type and lower dental cast, the upper dental cast are provided with a horizontal brace rod, and the lower dental cast is provided with a fixing clamp, institute It states upper bracket to be fixedly connected with the bottom plate, the upper bracket includes first upright bar an of axial direction, is set in first upright bar It is equipped with the location hole for connecting with the horizontal brace rod, the second upright bar that there are two the upper bracket radial symmetric settings, two A second upright bar is symmetrically arranged with the mounting hole for simulating glenoid, and two mounting holes and a pitman are removable Connection is unloaded, the lower jaw simulation frame includes two and is used to simulate the L-type ontology of mandibular and fixes with two L-type ontologies The cross bar of connection, the cross bar are detachably connected with the fixing clamp, and the L-type ontology is provided with for can with the pitman The connecting hole of connection is rotated, the diameter of the pitman is less than the diameter of the mounting hole, is provided with and is used in the mounting hole The air bag of articular disc and joint capsule is simulated, is provided with connecting spring between the lower jaw simulation frame and the upper bracket.

2. centric relation position apparatus for demonstrating according to claim 1, which is characterized in that the horizontal brace rod is screw thread Bar, the location hole are unthreaded holes.

3. centric relation position apparatus for demonstrating according to claim 1, which is characterized in that described in the diameter ratio of the mounting hole The diameter of pitman is more than or equal to 1.5 times.

4. centric relation position apparatus for demonstrating according to claim 1, which is characterized in that the air bag is the three of sequence setting A air bag body, including being located at center sleeve body and monosymmetric side airbag body immediately below the mounting hole axis.