CN213070311U - Teaching is with hindering living wisdom tooth and pull out model - Google Patents

Abstract

The embodiment of the utility model provides a teaching is with hindering life wisdom tooth and pull out model, include: the oral cavity and maxillofacial region structure, the fixed adaptor, the oral cavity opening and closing control structure and the consumable material; oral maxillofacial structure includes: the lower jaw is provided with a lower tooth group, and the bottom of the upper jaw is provided with an upper tooth group; the oral opening and closing control structure is movably connected with the mandible; the fixed adapter is fixedly connected with the oral jaw face structure; the consumable materials comprise a mucous layer, a lower jaw impacted wisdom tooth, a lower jaw first molar and a lower jaw second molar, the impacted wisdom tooth pulling model for teaching provided by the embodiment of the utility model is used for a doctor training project, and after training is completed, the bolt is screwed, so that the consumable materials can be replaced conveniently and quickly; the consumptive material adopts emulation material, and the skeleton of operation consumptive material is close real tissue soft or hard degree with the tooth, and the simulation is effectual, can effectively promote the teaching quality that the wisdom tooth that hinders to give birth to pulls out.

Description

Teaching is with hindering living wisdom tooth and pull out model

Technical Field

The utility model relates to a model technical field is used in the teaching, especially relates to a teaching is with hindering life wisdom tooth and pull out model.

Background

At present, three teaching models exist, one is plaster embedded separated tooth or resin tooth, and the defects are described in the text. The second is a resin model, which is the most, and the examination of a medical practitioner is the same at present, so that the simulation of simple tooth extraction is only realized, and the impacted tooth extraction cannot be carried out. The third is to use the pig mandible, the hand feeling of operators is close, but the source is limited, a large number of pigs are suckling pigs at present, the difference with permanent tooth extraction is large, the number of pigs in an adult year is small, and the biological potential safety hazard exists secondly. All existing models cannot simulate the minimally invasive tooth extraction operation in the popularization process at present. In teaching practice, the existing teaching model has the following defects: firstly, the existing model can only simulate the skeleton part of the oral cavity, the gypsum texture is greatly different from the physical performance of the mandible, the real tooth extraction condition cannot be simulated, the mucous membrane part cannot be simulated realistically, and a large amount of mucous membrane parts need to be simulated in oral teaching, so the existing oral model has poor simulation effect and single teaching mode, and is not beneficial to students to study.

SUMMERY OF THE UTILITY MODEL

In to prior art, oral cavity model simulation effect is poor, and teaching mode is single, is unfavorable for the technical problem that the student studied, the embodiment of the utility model provides a teaching is with hindering life wisdom tooth and pull out the model. The specific technical scheme is as follows:

the embodiment of the utility model provides a teaching is with hindering life wisdom tooth and pull out model, include: oral and maxillofacial structures, fixed adapters and consumables;

the oral maxillofacial structure comprising: the lower jaw is provided with a replaceable lower tooth group for operation simulation, and the replaceable lower tooth group consists of two molar teeth and one impacted tooth; an upper tooth group is arranged at the bottom of the maxilla, and the upper tooth group containing a maxilla full dentition consists of 14 teeth in an arrangement manner; the fixed adaptor is fixedly connected with the oral and maxillofacial structure;

the consumable comprises a part of mandible, a mucous layer, impacted wisdom teeth, first molar teeth and second molar teeth, wherein first threaded holes are formed in the part of mandible and are blind holes; the mucous membrane layer is coated with the impacted wisdom teeth; the first molars and the second molars are disposed on the mucosal layer, the portion of the mandible is disposed at a bottom of the mucosal layer, and the mucosal layer extends toward an interior of the oromaxillofacial structure; the impacted wisdom teeth support the second molar; the extension of the mucosal layer is located at the mandibular plica of the wing; the mucosa layer is used for simulating the wing mandibular fold;

be equipped with the connecting piece on the mandible second screw hole has been seted up on the connecting piece, the consumptive material utilizes the bolt fastening to be in on the mandible, first molar, second molar are the same with human oral cavity inside first molar, second molar position, the bolt runs through and threaded connection the second screw thread, bolt threaded connection first screw hole.

Optionally, the oromaxillofacial structure further comprises: frontal, temporal, nasal, lacrimal, hyoid, and mandibular plica; the frontal bone, the temporal bone, the nasal bone, the tear bone and the hyoplastron are all made of high polymer resin materials; the labial ligament, the buccal frenulum, the wing mandibular fold, the upper and lower dental arches and the pharyngeal door are all made of soft materials; the oral cavity jaw face structure is manufactured into all parts through die casting according to the three-dimensional data of the head structure, and all the parts are fixedly connected according to a preset rule.

Optionally, the adhesive film layer is made of an elastic material.

Optionally, the fixed adaptor includes a fixed rod, a first universal connector, a second universal connector, and a clamping structure; one end of the fixing rod is fixedly connected with the first universal connector, and the working end of the first universal connector is fixedly connected with the oral jaw face structure; the other end of the fixed rod is fixedly connected with the second universal connector; and the working end of the second universal connector is fixedly connected with the clamping structure.

Optionally, a bearing plate is fixedly arranged at the bottom of the mandible, and a hole is formed in the side wall of the bearing plate;

the oral cavity opening and closing control structure comprises an annular hoop, a transmission rod, a locking bolt, a support rod and a slide block; a limiting groove is formed in the side wall of the fixing rod, and the length direction of the limiting groove is parallel to the axis of the fixing rod; one end of the support rod is fixedly connected to the transmission rod, the other end of the support rod is fixedly connected to the sliding block, the sliding block is connected with the limiting groove in a sliding mode, and a triangle is formed among the transmission rod, the support rod and the fixed rod;

one end of the transmission rod is fixedly connected to the side wall of the fixed rod, the other end of the transmission rod is movably connected with the bearing plate through the hole, and the other end of the transmission rod is positioned in the hole; the axis of the transmission rod is perpendicular to the axis of the fixed rod.

Optionally, a soft material is covered on the outer side surface of the oral maxillofacial structure.

Optionally, the maxilla is detachably connected to the mandible in a rotatable manner.

Optionally, the impacted wisdom tooth is a resin tooth or a porcelain tooth.

Optionally, the tooth is a resin tooth or a porcelain tooth.

Optionally, in the oral cavity of the oral cavity maxillofacial structure, an internal structure of the human oral cavity is simulated.

The embodiment of the utility model provides a teaching is with hindering life wisdom tooth and pull out model, include: oral and maxillofacial structures, fixed adapters and consumables;

oral maxillofacial structure includes: the lower jaw is provided with a replaceable lower tooth group for operation simulation, and the replaceable lower tooth group consists of two molars and one impacted tooth which are arranged; the upper teeth group is arranged at the bottom of the upper jaw, and the upper teeth group comprises a fixed upper jaw full dentition which is formed by arranging at least two 14 teeth; the fixed adapter is fixedly connected with the oral jaw face structure; the consumable comprises a part of mandible, a mucous membrane layer, a impacted wisdom tooth, a first molar and a second molar, wherein a first threaded hole is formed in the part of mandible and is a blind hole; the mucous membrane layer is coated with the impacted wisdom teeth; the first molar and the second molar are arranged on the mucosa layer, part of the mandible is arranged at the bottom of the mucosa layer, and the mucosa layer extends towards the interior of the oral maxillofacial structure; the impacted wisdom tooth supports the second molar; the extension of the mucosal layer is located at the mandibular plica of the alar jaw; the mucous layer is used for simulating the wing mandibular fold; be equipped with the connecting piece on mandible, seted up the second screw hole on the connecting piece, the consumptive material utilizes the bolt fastening on mandible, and first molar, second molar are the same with human oral cavity inside first molar, second molar position, and the bolt runs through and threaded connection second screw, the first screw hole of bolt threaded connection. By adopting the model for pulling out the impacted wisdom tooth for teaching provided by the embodiment of the utility model, a learner can perform anesthesia training for lower alveolar resistance, when the training model is opened, the posterior part of the impacted wisdom tooth can be seen, a mucous membrane layer is arranged in front of a tongue and palate arch, the mucous membrane layer and the mucous membrane plica of a rope strip are positioned at the same position, namely, the mucous membrane layer replaces the wing mandible plica, and the learner can perform anesthesia training by utilizing the mucous membrane layer; secondly, after the gum simulation material on the surface of the impacted tooth is cut open, the tooth crown of the impacted tooth is exposed, and the operation training of the impacted wisdom tooth extraction is carried out; finally, the wound is cleaned and the suture training is finished, the impacted wisdom tooth pulling model for teaching provided by the embodiment of the utility model is used for a doctor training project, the technical problems that the existing oral cavity model has a single teaching mode and is not beneficial to the learning of students are solved, in addition, the consumable materials in the embodiment of the utility model are respectively fixed on jaws through bolts, and after the training is finished, the bolts are screwed, so that the consumable materials can be replaced conveniently and quickly; the utility model discloses mucous membrane layer in the consumptive material adopts simulation material, accomplishes maximum approaching with oral cavity inner structure, and the skeleton of operation consumptive material is close real tissue soft or hard degree with the tooth, has solved the poor problem of current oral cavity model simulation effect, can effectively promote the teaching quality that the wisdom tooth that hinders takes out.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below.

Fig. 1 is a schematic structural view of a teaching impacted wisdom tooth removing model according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of an oral maxillofacial structure provided by an embodiment of the present invention;

FIG. 3 is a schematic structural diagram of a consumable according to an embodiment of the present invention;

fig. 4 is a schematic side view of a teaching impacted wisdom tooth removing model according to an embodiment of the present invention;

fig. 5 is a schematic structural diagram of an oral opening and closing control structure provided by an embodiment of the present invention;

fig. 6 is a schematic structural diagram of an interior of an oral cavity according to an embodiment of the present invention;

fig. 7 is a schematic view of a separation structure of the transmission rod and the bearing plate according to the embodiment of the present invention;

fig. 8 is a partial schematic structural view of a fixing adaptor according to an embodiment of the present invention;

fig. 9 is a schematic view of a simulation structure of a stopping wisdom tooth removing model for teaching according to an embodiment of the present invention;

FIG. 10 is a schematic view of a consumable part of the present invention;

fig. 11 is a schematic view of another consumable material transfer structure provided by an embodiment of the present invention.

Reference numerals:

1 oral cavity jaw face structure, 2 consumptive materials, 3 connecting pieces, 4 maxilla, 5 mandible, 6 lower teeth group, 7 upper teeth group, 8 teeth, 9 fixed adaptor, 10 mucosa layer, 11 fixed cover, 12 impacted wisdom tooth, 13 second molar, 14 first molar, 15 gum simulation material, 16 frontal bone, 17 temporal bone, 18 nasal bone, 19 tear bone, 20 hyoid bone, 21 spring, 22 bolt, 23 dead lever, 24 first universal connector, 25 second universal connector, 26 joint structure, 27 bearing plate, 28 holes, 29 annular staple bolt, 30 transfer line, 31 locking bolt, 32 bracing piece, 33 slider, 34 spacing groove, 35 cover the soft material outside oral cavity jaw face.

Detailed Description

The technical solution in the embodiment of the present invention will be described below with reference to the accompanying drawings in the embodiment of the present invention.

An object of the embodiment of the utility model is to provide a teaching is with hindering life wisdom tooth and pulls out the model to it is poor to solve among the prior art oral cavity simulation effect, and the teaching mode is single, is unfavorable for the technical problem of student's study.

Please refer to fig. 1-11, the embodiment provides the embodiment of the present invention provides a model for pulling out impacted wisdom teeth for teaching, which includes: oral cavity maxillofacial portion structure, fixed adaptor, consumptive material.

The oral maxillofacial structure comprising: the lower jaw bone is provided with a replaceable lower tooth group for operation simulation, and the replaceable lower tooth group consists of two molar teeth and one impacted tooth which are arranged; an upper tooth group is arranged at the bottom of the maxilla, and the upper tooth group comprises a fixed maxilla whole dentition and is formed by arranging at least two 14 teeth; the fixed adaptor is fixedly connected with the oral and maxillofacial structure.

The consumable comprises a part of mandible, a mucous layer, impacted wisdom teeth, first molar teeth and second molar teeth, wherein first threaded holes are formed in the part of mandible and are blind holes; the mucous membrane layer is coated with the impacted wisdom teeth; the first molars and the second molars are disposed on the mucosal layer, the portion of the mandible is disposed at a bottom of the mucosal layer, and the mucosal layer extends toward an interior of the oromaxillofacial structure; the impacted wisdom teeth support the second molar; the extension of the mucosal layer is located at the mandibular plica of the wing; the mucosal layer is used to simulate the winged mandibular folds.

Be equipped with the connecting piece on the mandible second screw hole has been seted up on the connecting piece, the consumptive material utilizes the bolt fastening to be in on the mandible, first molar, second molar are the same with human oral cavity inside first molar, second molar position, the bolt runs through and threaded connection the second screw thread, bolt threaded connection first screw hole.

In an embodiment of the present invention, the mandible has a complete structure, and the mandible includes a mandible body, a mandible head, a coronal process and a mandible angle; foretell maxilla's rear end and mandible rear end can set up the through-hole through double-end nail swing joint at maxilla's rear end, correspond the position with the maxilla through-hole at the rear end of mandible and also set up the through-hole, later correspond two above-mentioned through-holes and place to run through the double-end nail in two above-mentioned through-holes, it can to set up spacing disk at the both ends of double-end nail. In a similar way, can also realize rotating according to above-mentioned connected mode with another rear end of maxilla and another rear end of mandible and be connected, of course, the embodiment of the utility model provides a scheme that contains not only is limited in the above-mentioned mode that utilizes the double-end nail and realizes rotating the connection, adopts other structures or connecting piece or the adaptor that can realize rotating the connection, all can use in the technical scheme of the embodiment of the utility model. The embodiment of the utility model provides a mandible, the structural integrity has the main sign at the anatomical process, the student of being convenient for is to the study of mandible structure.

The fixed adaptor is fixedly connected with the oral and maxillofacial structure; the embodiment of the utility model provides an in, above-mentioned fixed adaptor can directly purchase and obtain, utilizes current adaptor, and the structure of oral cavity maxillofacial region is fixed and is taught on dental chair or desktop, belongs to the conventional technical means in this field, the embodiment of the utility model discloses do not specifically inject concrete model and the kind of above-mentioned fixed adaptor.

Referring to fig. 3, the consumable includes a mucosal layer, a supratrochlear wisdom tooth, a first molar, a second molar; the mucous layer is made of gum simulation materials, and each gum simulation material is internally provided with an impacted wisdom tooth which abuts against the second molar; the mucosa layer is arranged to extend towards the inside of the oral cavity and is adhered to the lower jaw plica of the wing; the mucosal layer is used to simulate the winged mandibular folds. Above-mentioned gum emulation material can be the material similar to the gum soft tissue, soft silica gel prosthesis for example, the root that will hinder the wisdom tooth is inlayed in above-mentioned gum emulation material, the tip that hinders the wisdom tooth supports and holds the side at first molar, with the emulation growth situation that hinders the wisdom tooth, can set up multiple situation, for example, hinder the wisdom tooth subtotal and spill gum emulation material, hinder the wisdom tooth and do not spill gum emulation material, hinder half the gum emulation material that spills of wisdom tooth, be convenient for make the student master comprehensive condition.

As preferred real-time mode, the embodiment of the utility model provides a teaching is with hindering life wisdom tooth and pulls out the model in, the oral cavity has complete labial ligament, the cheek frenulum, wing lower jaw fold, upper and lower dental arch, the pharyngeal door, 24 fixed crowns, set up 14 on the maxilla, constitute the group of going up the tooth, set up 10 on the mandible, constitute down the group of going up the tooth, the palate, the appearance at the bottom of the tongue and the mouth, through fixed consumptive material, constitute complete model, in practical application, the user establishes the consumptive material cover on the group of going down the tooth, and utilize the bolt fastening, after the training is accomplished, directly screw down the bolt, it can to change above-mentioned consumptive material, concrete need decides according to the actual training process, be convenient for in the operation. When the model is operated for the first time, the operation is gentle, the purpose of skilled use is gradually achieved, and the model is prevented from being damaged.

Need to explain be that the oral cavity control structure that opens and shuts is used for controlling the relative maxilla motion of mandible, can be the joint fixed knot who describes through the semicircle, realize the function of the relative maxilla motion of mandible, for example, the joint fixed knot who describes of above-mentioned semicircle constructs the same with the principle of compasses, with two legs replacement cost utility model of compasses maxilla and mandible, the structure of the relative maxilla motion of above-mentioned realization mandible can also be bearing structure, utilize external auxiliary assembly, support above-mentioned mandible towards the maxilla motion. The simulation of the motion of the oral cavity switch of the impacted wisdom tooth pulling model for teaching is realized.

It should be noted that, in this embodiment, in the consumable material adopted, the mucous membrane layer set to simulate the gum of human body, under the wrapping effect of the mucous membrane layer, the impacted wisdom tooth can be set according to the actual clinical case, specifically, the impacted wisdom tooth with different tooth curvature and different radian can be made, for example, the tooth radian and tooth curvature encountered in clinic can be made into the model corresponding to the impacted wisdom tooth model, and the impacted wisdom tooth model with different strength can be set, wherein, the strength can refer to the clinical situation, the strength of the impacted wisdom tooth can be set, the specific setting method can be that the material with different hardness is selected, the material is made by using 3D printing technology, the 3D printing technology for making the tooth and the material for obtaining different hardness all belong to the conventional technical means in the field, and the skilled person can look up the material hardness table, the method can be obtained without creative labor, and after the materials are obtained, the existing 3D printing technology and equipment thereof are utilized to complete the preparation of the impacted wisdom tooth model; in practical application, the impacted tooth prepared by the means enables an operator to achieve the effect of minimally invasive tooth extraction through reasonable cutting on the basis of analyzing the appearance of the tooth body, and finally completes teaching and training of minimally invasive tooth extraction. The specific minimally invasive tooth extraction surgery can be found in papers of rigid body mechanics analysis of minimally invasive tooth extraction published in western oral medicine journal, volume 35, stage 2, and month 4 in 2019.

The embodiment of the utility model provides an in, above-mentioned oral cavity jaw facial structure is when needs are clean, separates mandible and maxilla, and direct with the clear water wash can, be convenient for maintain the maintenance.

Specifically, the oromaxillofacial structure includes: the lower jaw is provided with a replaceable lower tooth group for operation simulation, and the replaceable lower tooth group consists of two molars and one impacted tooth which are arranged; the upper teeth group is arranged at the bottom of the upper jaw, and the upper teeth group comprises fixed upper jaw full dentition which is formed by arranging at least two 14 teeth; the fixed adapter is fixedly connected with the oral jaw face structure; the consumable comprises a part of mandible, a mucous membrane layer, a impacted wisdom tooth, a first molar and a second molar, wherein a first threaded hole is formed in the part of mandible and is a blind hole; the mucous membrane layer is coated with the impacted wisdom teeth; the first molar and the second molar are arranged on the mucosa layer, part of the mandible is arranged at the bottom of the mucosa layer, and the mucosa layer extends towards the interior of the oral maxillofacial structure; the impacted wisdom tooth supports the second molar; the extension of the mucosal layer is located at the mandibular plica of the alar jaw; the mucous layer is used for simulating the wing mandibular fold; be equipped with the connecting piece on mandible, seted up the second screw hole on the connecting piece, the consumptive material utilizes the bolt fastening on mandible, and first molar, second molar are the same with human oral cavity inside first molar, second molar position, and the bolt runs through and threaded connection second screw, the first screw hole of bolt threaded connection. By adopting the model for pulling out the impacted wisdom teeth for teaching provided by the embodiment of the utility model, trainees can perform lower alveolar resistance anesthesia training, when the training model is opened, the trainees can see the rear part of the impacted wisdom teeth and have a mucous membrane layer in front of a tongue and palate arch, the mucous membrane layer and the mucous membrane plica of a rope strip are positioned at the same position, namely the mucous membrane layer replaces the wing mandible plica, and the trainees can perform anesthesia training by utilizing the mucous membrane layer; secondly, after the gum simulation material on the surface of the impacted tooth is cut open, the tooth crown of the impacted tooth is exposed, and the operation training of the impacted wisdom tooth extraction is carried out; finally, the wound is cleaned and the suture training is finished, and the impacted wisdom tooth pulling model for teaching provided by the embodiment of the utility model is adopted, so that training items of students are increased, the technical problems that the existing oral cavity model has a single teaching mode and is not beneficial to learning of students are solved, in addition, consumable materials are respectively fixed on jaws through bolts in the embodiment of the utility model, and after the training is finished, the bolts are screwed, so that the consumable materials can be replaced conveniently and quickly; the utility model discloses mucosa layer in the consumptive material adopts simulation material, accomplishes maximum approaching with oral cavity inner structure, and the skeleton of operation consumptive material is close true tissue hardness degree with the tooth, has solved the poor problem of current oral cavity model simulation effect.

Further, referring to fig. 2 and fig. 6, the oral maxillofacial structure further includes: frontal, temporal, nasal, lacrimal, hyoid, and mandibular plica; the frontal bone, the temporal bone, the nasal bone, the tear bone and the hyoplastron are all made of high polymer materials; the labial ligament, the buccal frenulum, the wing mandibular fold, the upper and lower dental arches and the pharyngeal door are all made of soft materials; the oral cavity jaw face structure is manufactured into all parts through die casting according to the three-dimensional data of the head structure, and all the parts are fixedly connected according to a preset rule. In particular, the above-mentioned method for obtaining the parts by die-casting is known in the art, the method for making the dies is known in the art, and the method for moulding the bone prosthesis of the respective parts by means of the dies is known in the art, and the application uses moulding methods which are conventional in the art and are not modified.

Furthermore, the material of the mucous layer is soft material. Mucosa layer in the embodiment of the present invention, analogy is wing lower jaw fold, in hindering the operation of giving birth to the wisdom tooth and extracting, need carry out anesthesia to the patient, however, in current model, there is not the function of relevant training injection anesthesia, in this embodiment, the mucosa layer of the emulation wing lower jaw fold that adds, the scholars can simulate the injection on the mucosa layer, simulation anesthesia process. The soft material needs to have a certain elasticity, but the main characteristic is soft, can be turned up and reset, and can be sewn. The elasticity should not be too large. In the actual configuration process, the elasticity of the gum can be referred to for setting, and the optimal scheme is that the elasticity of the soft material is equal to the elasticity of the gum; of course, in this embodiment, the elasticity of the soft material is not equal to the elasticity of the gum, and the present invention is also within the scope of the application.

Further, referring to fig. 4 and 8, the fixing adaptor includes a fixing rod, a first universal connector, a second universal connector, and a clamping structure; one end of the fixing rod is fixedly connected with the first universal connector, and the working end of the first universal connector is fixedly connected with the oral jaw face structure; the other end of the fixed rod is fixedly connected with the second universal connector; and the working end of the second universal connector is fixedly connected with the clamping structure.

As a preferred embodiment, the fixing adaptor works as follows: the working end of the first universal connector is the rotatable end, the rotatable end is fixedly connected with the oral cavity maxillofacial structure, the top of the oral cavity maxillofacial structure can be connected, the rear part of the oral cavity maxillofacial structure can also be connected through a third party auxiliary part, the bottom of the oral cavity maxillofacial structure can also be connected, the purpose is to connect the oral cavity maxillofacial structure with a fixed rod through a first universal connecting part, the oral cavity maxillofacial structure can rotate relative to the fixed rod, the fixed rod can be made of metal materials or other hard materials, the effect of supporting the oral cavity maxillofacial structure can be achieved, the other end of the fixed rod is connected with a second universal connector, the working end of the second universal connector can be fixedly connected with a clamping structure through the rotatable end, and the clamping structure is used for fixedly connecting the fixed rod and the first universal connector, The universal connector of second and the oral cavity jaw facial structure who is connected with first universal connector working end support on the workstation or dental chair, and above-mentioned joint structure can be a checkpost, also can be two editions form thing, through bolt-up connection's structure, the embodiment of the utility model provides a do not specifically inject the concrete structure of above-mentioned joint structure.

Further, referring to fig. 5 and 7, a bearing plate is fixedly arranged at the bottom of the mandible, and a hole is formed in the side wall of the bearing plate;

the oral cavity opening and closing control structure comprises an annular hoop, a transmission rod, a locking bolt, a support rod and a slide block; a limiting groove is formed in the side wall of the fixing rod, and the length direction of the limiting groove is parallel to the axis of the fixing rod; one end of the support rod is fixedly connected to the transmission rod, the other end of the support rod is fixedly connected to the sliding block, the sliding block is connected with the limiting groove in a sliding mode, and a triangle is formed among the transmission rod, the support rod and the fixing rod.

One end of the transmission rod is fixedly connected to the side wall of the fixed rod, the other end of the transmission rod is movably connected with the bearing plate through the hole, and the other end of the transmission rod is positioned in the hole; the axis of the transmission rod is perpendicular to the axis of the fixed rod.

Specifically, the bracing piece is used for supporting above-mentioned transfer line, the fixed annular staple bolt that is provided with in one end of transfer line, the other end and the aforesaid offer the hole sliding connection on the holding board, when the user needs to close the model, loosen the locking bolt on the annular staple bolt, move the transfer line rebound, at this moment, slide in the spacing groove at the slider, because slider and bracing piece fixed connection, so, under the supporting action of bracing piece, the transfer line level rebound, at this moment, the part that the transfer line is located downthehole moves towards opening or the bottom in hole, under the driving action of transfer line, the holding board rebound, the holding board level is fixed in the bottom of mandible, at this moment, when the holding board rebound, the mandible follows the rebound, until to the mandible with the mandible closed.

As preferred embodiment, be provided with the spring between maxilla and mandible, the one end fixed connection of spring maxilla, other end fixed connection mandible, above-mentioned spring are compression spring, are convenient for when the student is opened in needs model oral cavity, directly with the chamber control structure that opens and shuts move down can, under the spring action of spring, the relative maxilla of mandible is opened, and is concrete, through the position of adjusting the chamber control structure that opens and shuts, controls the degree of opening in model oral cavity.

Furthermore, a soft material is covered and arranged on the outer side surface of the oral and maxillofacial structure.

Specifically, the soft materials that each bone prosthesis corresponds can set different colours into, the discernment of being convenient for, and on the other hand covers on the lateral surface of oral cavity jaw facial structure and sets up soft materials, when the student trains, touches above-mentioned soft materials after, and the sense of touch is lifelike, is similar to head skin.

Further, the maxilla can be dismantled with the mandible and rotate and be connected. When the model needs to be cleaned, the mandible is removed, so that the cleaning blockage is reduced, and the cleaning is convenient.

Further, the impacted wisdom tooth is a resin tooth or a porcelain tooth. Has the hardness similar to that of real teeth so as to ensure that the trainee has the experience close to the real experience when practicing.

Further, the tooth is a resin tooth or a porcelain tooth. The hardness of the tooth brush is similar to that of a real tooth, so that the student can have a near-real experience during practice.

Furthermore, the internal structure of the oral cavity of the human body is simulated in the oral cavity of the oral cavity jaw face structure.

Specifically, the internal structure of the oral cavity of the human body can be simulated by 1:1 through a 3D printing technology and printed through a simulation material, so that the internal structure of the oral cavity is obtained.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

All the embodiments in the present specification are described in a related manner, and the same and similar parts among the embodiments may be referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims (10)

1. The utility model provides a teaching is with hindering life wisdom tooth and pulls out model which characterized in that includes: oral and maxillofacial structures, fixed adapters and consumables;

the oral maxillofacial structure comprising: the lower jaw is provided with a lower tooth group, the lower tooth group is divided into three parts, wherein the dentition between second bicuspids at two sides is a fixed dentition group, and the left and right tooth grinding areas respectively form a replaceable operation dentition group consisting of two grinding teeth and one wisdom tooth; an upper tooth group is arranged at the bottom of the maxilla, is a fixed dentition and consists of 14 teeth in an arrangement manner; the fixed adaptor is fixedly connected with the oral and maxillofacial structure;

the consumable comprises a part of mandible, a mucous layer, impacted wisdom teeth, first molar teeth and second molar teeth, wherein first threaded holes are formed in the part of mandible and are blind holes; the mucous layer is coated with the impacted wisdom teeth; the first molars and the second molars are arranged on the mucous membrane layer, the partial mandible is arranged at the bottom of the mucous membrane layer, and the mucous membrane layer extends towards the interior of the oral maxillofacial structure; the impacted wisdom teeth support the second molar; the extension of the mucosal layer is located at the mandibular plica of the wing; the mucosa layer is used for simulating the wing mandibular fold;

be equipped with the connecting piece on the mandible second screw hole has been seted up on the connecting piece, the consumptive material utilizes the bolt fastening to be in on the mandible, first molar, second molar are the same with human oral cavity inside first molar, second molar position, the bolt runs through and threaded connection the second screw thread, bolt threaded connection first screw hole.

2. The educational impacted wisdom tooth extraction model of claim 1, wherein the oromaxillofacial structure further comprises: frontal bone, temporal bone, nasal bone, tear bone, hyoid bone, labial ligament, buccal frenulum, wing and mandibular plica, upper and lower dental arches, pharyngeal door; the frontal bone, the temporal bone, the nasal bone, the tear bone and the hyoplastron are all made of high polymer materials; the labial ligament, the buccal frenulum, the wing mandibular fold, the upper and lower dental arches and the pharyngeal door are all made of soft materials; the oral cavity jaw face structure is manufactured into all parts through die casting according to the three-dimensional data of the head structure, and all the parts are fixedly connected according to a preset rule.

3. The model of claim 1, wherein the mucous layer is made of soft material.

4. The educational arrhythmic wisdom tooth removal model as recited in claim 1, wherein the fixing adaptor comprises a fixing rod, a first universal connector, a second universal connector, a clamping structure; one end of the fixing rod is fixedly connected with the first universal connector, and the working end of the first universal connector is fixedly connected with the oral jaw face structure; the other end of the fixed rod is fixedly connected with the second universal connector; and the working end of the second universal connector is fixedly connected with the clamping structure.

5. The model for extracting impacted wisdom teeth as defined in claim 4, further comprising an oral cavity opening and closing control structure, wherein a bearing plate is fixedly arranged at the bottom of the mandible, and a hole is formed on the side wall of the bearing plate;

the oral cavity opening and closing control structure comprises an annular hoop, a transmission rod, a locking bolt, a support rod and a slide block; a limiting groove is formed in the side wall of the fixing rod, and the length direction of the limiting groove is parallel to the axis of the fixing rod; one end of the support rod is fixedly connected to the transmission rod, the other end of the support rod is fixedly connected to the sliding block, the sliding block is connected with the limiting groove in a sliding mode, and a triangle is formed among the transmission rod, the support rod and the fixed rod;

one end of the transmission rod is fixedly connected to the side wall of the fixed rod, the other end of the transmission rod is movably connected with the bearing plate through the hole, and the other end of the transmission rod is positioned in the hole; the axis of the transmission rod is perpendicular to the axis of the fixed rod.

6. The model of claim 1, wherein a soft material is covered on the lateral surface of the maxillofacial structure.

7. The educational impacted wisdom tooth extraction model of claim 1, wherein the maxilla is detachably and rotatably connected with the mandible.

8. The extraction model of the impacted wisdom tooth for teaching as claimed in claim 1, wherein the impacted wisdom tooth is a resin tooth or a porcelain tooth.

9. The educational impacted wisdom tooth extraction model of claim 1, wherein the teeth are resin teeth or porcelain teeth.

10. The model for teaching extraction of arrhythmic wisdom teeth as defined in claim 1, wherein the oral cavity of the oral maxillofacial structure simulates the internal structure of the human oral cavity.

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