CN109637316A - Double-layer resin tooth for the training of oral cavity tooth preparation - Google Patents
Double-layer resin tooth for the training of oral cavity tooth preparation Download PDFInfo
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Abstract
The present invention provides a kind of double-layer resin teeth for the training of oral cavity tooth preparation, belong to dentistry field, are related to a kind of double-layer resin tooth.Double-layer resin tooth provided by the invention is able to solve student and is difficult to accurately and efficiently control to the form of tooth preparation amount and Tooth preparation in the actual operation process, cause preparation amount insufficient or excessive, the degree of polymerization is excessive, the rough continuous technical problem in edge, pass through selected color and hardness different double-layer resin tooth endothecium structure material and layer structure material, so that tooth body has apparent sense of touch to distinguish during the grinding process, preferably distinguish dentine and enamel hardness difference, to have " automatic prompting function " to learner, improve the experience of learner, the preparation method of certain dummy can quickly be grasped, including being measured to preparation, the rapid grasp of preparation form.
Description
Technical field
The invention belongs to dentistry field, it is related to a kind of resin tooth, more particularly to a kind of for oral cavity tooth preparation instruction
Experienced double-layer resin tooth.
Background technique
Prosthodontics is the Clinical Science of Stomatology course comprising multi-subject knowledge, is needed theory and practice is close
In conjunction with tooth preparation is extremely important in fixed teaching reparation early period and is main content, and is repaired in clinic most often
Basic clinical technology, but early period student teaching and clinic in exist during it is often found that student is in tooth preparation
Various problems, they are good to the grasp of theoretical study and standard, but cannot reflect well in actual operation, and problem is logical
Often go out preparation amount and Tooth preparation form control, such as: preparation amount it is insufficient or excessive, the degree of polymerization is excessive, edge not only
Sliding continuous the problems such as waiting.
Common resins tooth substitutes natural teeth during tooth preparation teaching, training at present, and tooth preparation is usually with resin tooth
Single layer structure, i.e., its material, quality, color are the same from the inside to surface, and student measures preparation during tooth preparation
And preparation form is judged and is assessed, and beginner is often difficult to hold.In order to solve student in the process of tooth preparation
In preparation is measured and preparation form is not easy the problem of accurately being judged and being assessed, also adopted during tooth preparation teaching, training
Tooth preparation is carried out with the technical solution that tooth preparation resin tooth and instruction former are used in combination；Its resin tooth used for
Single layer structure, i.e., its material, quality, color are the same from the inside to surface, while indicating former with silicon rubber to show preparation
Amount, thus facilitate obtain more it is accurate preparation measure.But indicate that former only indicates the section of limited quantity, it can not be complete
The whole entire Tooth preparation of instruction, and the judgement of preparation amount can only also be measured by range estimation or probe, accuracy and effect
Rate is all difficult to reach perfect condition.
Therefore, student still has in the actual operation process is difficult to accurately the form of tooth preparation amount and Tooth preparation
It is efficiently controlled, causing preparation to be measured, insufficient or excessive, the degree of polymerization is excessive, edge is rough continuous, and learner experiences difference etc.
Problem.
Summary of the invention
The present invention provides a kind of double-layer resin teeth for the training of oral cavity tooth preparation, solve student in practical operation
In the process the form of tooth preparation amount and Tooth preparation is difficult to accurately and efficiently control, causes preparation amount insufficient or mistake
Greatly, the degree of polymerization is excessive, the rough continuous technical problem in edge.
In order to achieve the above object, the present invention provides the following technical scheme that
A kind of double-layer resin tooth for the training of oral cavity tooth preparation, endothecium structure are the preparation volume morphing of standard, outside
Layer structure is the corona shape of standard, is simulation enamel structure, and endothecium structure is different with the color and hardness of layer structure.
Further, the color of the layer structure of the double-layer resin tooth is white or transparent colour system；The double-layer resin
The color of the endothecium structure of tooth is other colors in addition to white and transparent colour system；
Further, the color of the double-layer resin tooth endothecium structure is preferably yellow class.
Further, the hardness of the layer structure material of the double-layer resin tooth is less than the hardness of endothecium structure material；
Further, the layer structure material of the double-layer resin tooth is selected from acrylic resin, melamine, polycarbonate, no
One or more of saturated polyester, phenol and epoxy resin；
Preferably, the layer structure material of the double-layer resin tooth is polymethyl methacrylate；
Further, the endothecium structure material of the double-layer resin tooth is in acrylic resin, melamine, polycarbonate, no
The composite material that additive is formed is added in one or more of saturated polyester, phenol or epoxy resin raw material；Described adds
Adding agent is filler and/or colorant；
Further, the additive is preferably inorganic material powders and/or glass fibre；Endothecium structure material is preferably
The resinous material of glass fiber reinforcement or the composite resin material of inorganic filler enhancing.
Further, the endothecium structure material of the double-layer resin tooth can also be oxide material, it is further preferred that
Endothecium structure material is zirconium oxide or aluminium oxide.
The thickness range of the layer structure of the double-layer resin tooth is 0.1-3.5mm.
The thickness range of the layer structure of the double-layer resin tooth is more preferably 0.5-2.5mm.
The preparation method of above-mentioned double-layer resin tooth is normal using CAD/CAM approach, injection moulding method or using plastic products
Membrane pressure forming method.
Further, the CAD/CAM approach includes the following steps:
Go out standard type endothecium structure using existing model preparation, is then collected model data by scanner, the number
Adjustment is designed according to by design software, and output file is inserted into and selected is suitable as endothecium structure material to process equipment
Material in, can batch making go out the endothecium structure of standard type；
The formalness of standard, i.e. tooth are designed by design software on the basis of the model data of the endothecium structure of collection
Enamel portion form, by the model data output file of formalness to process equipment, selection is suitable as layer structure material
Material processed, can batch micro operations go out the layer structure of standard type；
Resulting endothecium structure and layer structure are combined by way of bonding, obtain the resin of double-layer structure
Tooth.
Further, the injection moulding method includes the following steps:
Filling is suitable as the material of endothecium structure material in the standard type metal die for forming endothecium structure
And its solidification is made by heating, form endothecium structure；
Resulting molding endothecium structure is fixed on to the designated position for being used to form the metal die of layer structure, then again
Injection is suitable as the material of layer structure material in a mold, makes inside and outside double-layer structure that knot be fully cured by way of heating
Integrator obtains the resin tooth of double-layer structure.
Compared with prior art, the invention has the following beneficial effects:
It can be exclusively used in the training of tooth preparation provided by the present invention for the double-layer resin tooth of oral cavity tooth preparation training,
The resin tooth of double-layer structure has the function of " automatic prompt " by material firmness change, solves student in actual mechanical process
In the form of tooth preparation amount and Tooth preparation is difficult to accurately and efficiently control, cause preparation amount it is insufficient or excessive, poly-
Right excessive, the rough continuous technical problem in edge, while double-layer resin tooth provided by the invention has student's tooth preparation
Instant alerts function, and can all have instruction in each face of tooth, so that student is to tooth preparation amount and Tooth preparation
Judgement and grasp are more accurate and efficient.
Detailed description of the invention
Fig. 1 is double-layer resin dental structure schematic diagram provided in an embodiment of the present invention；
Note: 1- double-layer resin tooth endothecium structure；2- double-layer resin tooth layer structure.
Specific embodiment
The technical scheme in the embodiments of the invention will be clearly and completely described below, it is clear that described implementation
Example is only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without making creative work belongs to the model that the present invention protects
It encloses.
A kind of endothecium structure of double-layer resin tooth for the training of oral cavity tooth preparation provided in an embodiment of the present invention is mark
Quasi- preparation volume morphing, layer structure are the corona shape of standard, the endothecium structure of the double-layer resin tooth and layer structure
Color and hardness are different.
The color and hardness difference of the endothecium structure of double-layer resin tooth provided in an embodiment of the present invention and layer structure, when pre-
When standby level different with hardness to color, student's preparation can be prompted to have reached the depth of requirement, have to student and mention immediately
Wake up function, and all have prompt in each face of tooth, by such practice, requirement of the student to tooth preparation, Tooth preparation shape
State has very direct understanding, " seamless interfacing " of realization theory study and practical operation.
In an alternative embodiment, the color of the layer structure of the double-layer resin tooth is white or transparent colour system；It is described
The color of the endothecium structure of double-layer resin tooth is other colors in addition to white and transparent colour system, the double-layer resin tooth internal layer knot
The color of structure is yellow class.
The layer structure of double-layer resin tooth provided in an embodiment of the present invention is different with endothecium structure color, layer structure color
Shallower white or Transparent color, endothecium structure color is deeper, selection with layer structure color have differentiation except white and Transparent color
Other colors of system, such as yellow class, more meet the structure of nature tooth, dentine and enamel have apparent area first in this way
Point, and when student is when carrying out tooth preparation, it is visually able to carry out apparent differentiation, when being prepared to the different layer of color
When face, student's preparation can be prompted to have reached the depth of requirement, so that judgement of the student to tooth preparation amount and Tooth preparation
It is more accurate and efficient with grasping.
In an alternative embodiment, the hardness of the layer structure material of the double-layer resin tooth is less than endothecium structure material
Hardness；
The layer structure material of the double-layer resin tooth be selected from acrylic resin, melamine, polycarbonate, unsaturated polyester (UP),
One or more of phenol and epoxy resin；The layer structure material of the double-layer resin tooth is polymethyl methacrylate；
The endothecium structure material of the double-layer resin tooth be acrylic resin, melamine, polycarbonate, unsaturated polyester (UP),
The composite material that additive is formed is added in one or more of phenol or epoxy resin raw material；Or the double-layer resin tooth
Endothecium structure material be oxide material, be selected from zirconium oxide or aluminium oxide.
The hardness of the layer structure material of double-layer resin tooth provided in an embodiment of the present invention is less than the hard of endothecium structure material
Degree, layer structure material is softer, and preferred polymethylacrylic acid material is more suitable for doing outer section i.e. enamel because of its translucency
Part.And internal layer material is the composite material or the bigger oxide material of hardness of the bigger addition additive of hardness, is such as aoxidized
Zirconium and aluminium oxide.Double-layer resin tooth ectonexine hardness i.e. provided in an embodiment of the present invention is different, has during the grinding process obvious
Sense of touch distinguish, it is different and different from existing interim resin dental structure preferably to distinguish dentine and enamel hardness, faces
When tooth be that outer layer hardness is big, the big enamel of simulation hardness, internal layer hardness is small, the low dentine of simulation hardness, and the present invention is real
The double-layer resin tooth for applying example offer is that outer layer hardness is small, and convenient for polishing, and internal layer hardness is big, when standby burr is polished to internal layer knot
When structure, because material hardness is big, prompt preparation can be played the role of in place, and be not easy by vehicle needle damage -form because hardness is higher.
Therefore, when being prepared to the different level of hardness, student's preparation can be prompted to have reached the depth of requirement, had immediately to student
Prompting function solves student and is difficult to accurately and efficiently to the form of tooth preparation amount and Tooth preparation in the actual operation process
It is controlled, causing preparation to be measured, insufficient or excessive, the degree of polymerization is excessive, the rough continuous technical problem in edge.
In an alternative embodiment, additive described in endothecium structure material is filler and/or colorant；Or it is described
Additive be inorganic material powders and/or glass fibre.
Endothecium structure material provided in an embodiment of the present invention is poly- in acrylic resin, melamine, polycarbonate, unsaturation
The composite material that additive is added in one or more of ester, phenol or epoxy resin raw material can by the addition of additive
To improve the color of endothecium structure material, the hardness of material is improved, it is preferable that the addition such as inorganic material powders, glass fibre is added
Agent, for example, when the composite resin material of resinous material or inorganic filler enhancing that endothecium structure material is glass fiber reinforcement
When, compared with layer structure material, endothecium structure material hardness is bigger, color is easier to distinguish, student to tooth preparation require with
And form has more direct understanding.
In an alternative embodiment, the thickness range of the layer structure of the double-layer resin tooth is 0.1-3.5mm, preferably
0.5-2.5mm；Layer structure thickness is not limited to 0.5mm, 1mm, 1.5mm, 2mm, 2.5mm, 3mm.
The embodiment of the present invention is defined the thickness range of the layer structure of the double-layer resin tooth of offer, so that student
It is easier to recognize the depth whether preparation reaches requirement when carrying out tooth preparation, improves the experience of learner, it can
Enough preparation methods for quickly grasping certain dummy, including the rapid grasp to preparation amount, preparation form.
The preparation method of double-layer resin tooth provided by the invention can use CAD/CAM approach or injection moulding method.
CAD/CAM approach provided by the invention includes the following steps:
Go out standard type endothecium structure using existing model preparation, is then collected model data by scanner, the number
Adjustment is designed according to by design software, and output file is inserted into and selected is suitable as endothecium structure material to process equipment
Material in, can batch making go out the endothecium structure of standard type；
The formalness of standard, i.e. tooth are designed by design software on the basis of the model data of the endothecium structure of collection
Enamel portion form, output file are selected the material for being suitable as layer structure material to be processed, can be criticized to process equipment
Amount produces the layer structure of standard type；
Resulting endothecium structure and layer structure are combined by way of bonding, the tree of double-layer structure can be obtained
Rouge tooth.
The CAD/CAM approach provided in an embodiment of the present invention for preparing double-layer resin tooth can be existing by collecting with batch micro operations
The design for having model data to carry out into design software at any time adjusts, and output file can manufacture endothecium structure to process equipment,
Then it is transferred to process equipment by software design layer structure data in interior model of a layered structure data, can be processed outer layer
Structure, prepares that tooth body structure is more accurate compared with existing model, and manufacturing process error is small using this method, more convenient, fast
It is prompt.Scanning mode described in the embodiment of the present invention is that storehouse is swept or mouth is swept；This Process Design software is EXOCAD, 3shape, Dental
Wings or inlab.
Injection moulding method provided by the invention includes the following steps:
Filling is suitable as the material of endothecium structure material in the standard type metal die for forming endothecium structure
And its solidification is made by heating, form endothecium structure；
Resulting molding endothecium structure is fixed on to the designated position for being used to form the metal die of layer structure, then again
Injection is suitable as the material of layer structure material in a mold, makes inside and outside double-layer structure that knot be fully cured by way of heating
The resin tooth of double-layer structure can be obtained in integrator.
The injection moulding method provided in an embodiment of the present invention for preparing double-layer resin tooth is made by way of being heating and curing
Ectonexine structure, which is fully cured, to be combined into one to obtain double-layer structure resin tooth, and not only manufacturing process is easy, while obtained
Resin dental structure is more firm.
It is not excluded for that double-layer resin tooth can also be prepared using the common membrane pressure forming method of plastic products.
Double-layer resin tooth and preparation method thereof provided by the embodiment of the present invention is introduced in detail in order to become apparent from, and below will
It is described in conjunction with specific embodiments.
Embodiment 1
As shown in Figure 1, the double-layer resin tooth for the training of oral cavity tooth preparation includes endothecium structure 1 and layer structure 2,
Middle endothecium structure is the preparation volume morphing of standard, and layer structure is the corona shape of standard, and the color of layer structure is white, interior
The color of layer structure is yellow, and the hardness of layer structure material is less than the hardness of endothecium structure material；
Layer structure material is polymethyl methacrylate；Endothecium structure material is to be added in polymethyl methacrylate
Inorganic material powders；Layer structure with a thickness of 2mm.
The preparation method of the double-layer resin tooth uses CAD/CAM approach, includes the following steps:
Go out standard type endothecium structure using existing model preparation, then by model data in such a way that scanner storehouse is swept
It collects, which is designed adjustment by EXOCAD design software, and output file is inserted into inorganic material powders and increases to process equipment
In strong resin material, can batch making go out the endothecium structure of standard type；
The external shape of standard is designed by EXOCAD design software on the basis of the model data of the endothecium structure of collection
State, i.e. enamel portion forms, output file select polymethyl methacrylate materials to be processed to process equipment
Batch micro operations go out the layer structure of standard type；
Resulting endothecium structure and layer structure are combined by way of bonding, the tree of double-layer structure can be obtained
Rouge tooth.
Embodiment 2
The difference from embodiment 1 is that: the color of the layer structure of double-layer resin tooth is Transparent color, the color of endothecium structure
For yellow.
Embodiment 3
The difference from embodiment 1 is that: the layer structure material is melamine, polycarbonate and unsaturated polyester (UP)；Internal layer
Structure material is that glass fibre is added in melamine, polycarbonate and unsaturated polyester (UP).
Embodiment 4
The difference from embodiment 1 is that: the layer structure material is unsaturated polyester (UP), phenol and epoxy resin；Internal layer
Structure material is zirconium oxide.
Embodiment 5
The difference from embodiment 1 is that: the layer structure material is unsaturated polyester (UP), phenol and epoxy resin；Internal layer
Structure material is aluminium oxide.
Embodiment 6
The difference from embodiment 1 is that: layer structure with a thickness of 0.1mm.
Embodiment 7
The difference from embodiment 1 is that: layer structure with a thickness of 3.5mm.
Embodiment 8
The difference from embodiment 1 is that: the preparation method of the double-layer resin tooth uses injection moulding method, including as follows
Step:
The polymethyl of inorganic material powders is added in filling in the standard type metal die for forming endothecium structure
Sour methyl esters composite material simultaneously makes its solidification by heating, forms endothecium structure；
Resulting molding endothecium structure is fixed on to the designated position for being used to form the metal die of layer structure, then again
Polymethyl methacrylate is injected in a mold, is fully cured inside and outside double-layer structure by way of heating and is combined into one,
The resin tooth of double-layer structure can be obtained.
Embodiment 9
The difference from embodiment 1 is that: the preparation method of the double-layer resin tooth uses injection moulding method, including as follows
Step:
Melamine, polycarbonate and unsaturated polyester (UP) are filled in the standard type metal die for forming endothecium structure
The middle composite material that glass fibre is added simultaneously makes its solidification by heating, forms endothecium structure；
Resulting molding endothecium structure is fixed on to the designated position for being used to form the metal die of layer structure, then again
Melamine, polycarbonate and unsaturated polyester (UP) are injected in a mold, make inside and outside double-layer structure that knot be fully cured by way of heating
The resin tooth of double-layer structure can be obtained in integrator.
Comparative example 1
The difference from embodiment 1 is that: the color of layer structure is white, and the color of endothecium structure is Transparent color.
Comparative example 2
The difference from embodiment 1 is that: layer structure material is zirconium oxide；Endothecium structure material is in polymethylacrylic acid
Inorganic material powders are added in methyl esters.
Comparative example 3
The difference from embodiment 1 is that: layer structure material is that glass is added in melamine, polycarbonate and unsaturated polyester (UP)
The composite material of glass fiber；Endothecium structure material is that inorganic material powders are added in polymethyl methacrylate.
Comparative example 4
The difference from embodiment 1 is that: layer structure with a thickness of 0.05mm.
Comparative example 5
The difference from embodiment 1 is that: layer structure with a thickness of 4mm.
Contrast on effect
Double-layer resin tooth made from embodiment 1-9 and comparative example 1-5 is exclusively used in tooth preparation training, discovery uses real
The trainer for applying double-layer resin tooth made from a 1-9 experiences with better learner, is mark inside double-layer resin tooth obtained
Quasi- preparation volume morphing, outside are the corona shape of standard, and color is different, more meets the structure of nature tooth, endothecium structure tooth sheet
Matter and layer structure enamel have apparent color to distinguish, and endothecium structure hardness is greater than layer structure, when standby dental alveolus stylus printer
When being ground to endothecium structure, that is, when being prepared to the color level different with hardness, the effect of preparation in place can be prompted, student is prompted
Preparation has reached the depth of requirement, and because endothecium structure material hardness is big, is not easy by vehicle needle damage -form；So that student couple
The present invention provides a kind of double-layer resin teeth for the training of oral cavity tooth preparation, and it is right in the actual operation process to solve student
Tooth preparation amount and the form of Tooth preparation are difficult to accurately and efficiently be controlled, and preparation is caused to measure the insufficient or excessive, degree of polymerization
Excessive, the rough continuous technical problem in edge, double-layer resin tooth provided by the invention have instant alerts to student's tooth preparation
Function, and can all have instruction in each face of tooth, so that judgement and the palm of the student to tooth preparation amount and Tooth preparation
It is more accurate and efficient to hold.
And when double-layer resin tooth made from comparative example 1-5 being used to carry out tooth preparation training, there are outer layer colors in tooth body
Unconspicuous problem is distinguished with hardness, student is difficult to accurately judge and comment in the form control of preparation amount and Tooth preparation
Estimate, the problems such as preparation amount is insufficient or excessive, the degree of polymerization is excessive, edge is rough continuous occurs, learner's experience is poor.
Claims (9)
1. a kind of double-layer resin tooth for the training of oral cavity tooth preparation, it is characterised in that: the internal layer knot of the double-layer resin tooth
Structure is the preparation volume morphing of standard, and layer structure is the corona shape of standard, the endothecium structure and outer layer of the double-layer resin tooth
The color and hardness of structure are different.
2. double-layer resin tooth according to claim 1, it is characterised in that: the color of the layer structure of the double-layer resin tooth
For white or transparent colour system；The color of the endothecium structure of the double-layer resin tooth is other face in addition to white and transparent colour system
Color, the color of the double-layer resin tooth endothecium structure are yellow class.
3. double-layer resin tooth according to claim 1, it is characterised in that: the layer structure material of the double-layer resin tooth
Hardness is less than the hardness of endothecium structure material；
The layer structure material of the double-layer resin tooth is selected from acrylic resin, melamine, polycarbonate, unsaturated polyester (UP), phenol
One or more of with epoxy resin；The layer structure material of the double-layer resin tooth is polymethyl methacrylate；
The endothecium structure material of the double-layer resin tooth is in acrylic resin, melamine, polycarbonate, unsaturated polyester (UP), phenol
Or the composite material that additive is formed is added in one or more of epoxy resin raw material；Or the double-layer resin tooth is interior
Layer structure material is oxide material, is selected from zirconium oxide or aluminium oxide.
4. double-layer resin tooth according to claim 3, it is characterised in that: the additive is filler and/or colorant；
Or the additive is inorganic material powders and/or glass fibre.
5. double-layer resin tooth according to claim 3, it is characterised in that: the thickness of the layer structure of the double-layer resin tooth
Range is 0.1-3.5mm.
6. double-layer resin tooth according to claim 5, it is characterised in that: the thickness of the layer structure of the double-layer resin tooth
Range is 0.5-2.5mm.
7. a kind of preparation method of double-layer resin tooth as claimed in any one of claims 1 to 6, it is characterised in that: the bilayer
The preparation method of resin tooth is using CAD/CAM approach, injection moulding method or utilizes the common membrane pressure forming method of plastic products.
8. the preparation method of double-layer resin tooth according to claim 7, it is characterised in that: the CAD/CAM approach packet
Include following steps:
Go out standard type endothecium structure using existing model preparation, then collected model data by scanner, the data are logical
It crosses design software and is designed adjustment, output file is inserted into the selected material for being suitable as endothecium structure material to process equipment
In material, obtain can batch making go out the endothecium structure of standard type；
The formalness of standard, i.e. enamel are designed by design software on the basis of the model data of the endothecium structure of collection
Portion forms, output file select the material for being suitable as layer structure material to be processed to process equipment, and obtaining can batch
Produce the layer structure of standard type；
Resulting endothecium structure and layer structure are combined by way of bonding, obtain the resin tooth of double-layer structure.
9. the preparation method of double-layer resin tooth according to claim 7, it is characterised in that: the injection moulding method packet
Include following steps:
Filling is suitable as the material of endothecium structure material and leads in the standard type metal die for forming endothecium structure
Crossing heating makes its solidification, forms endothecium structure；
Resulting molding endothecium structure is fixed on to the designated position for being used to form the metal die of layer structure, then again in mould
Injection is suitable as the material of layer structure material in tool, is fully cured inside and outside double-layer structure by way of heating and is combined into
One, obtains the resin tooth of double-layer structure.
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| CN201811542557.2A CN109637316A (en) | 2018-12-17 | 2018-12-17 | Double-layer resin tooth for the training of oral cavity tooth preparation |
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| CN201811542557.2A CN109637316A (en) | 2018-12-17 | 2018-12-17 | Double-layer resin tooth for the training of oral cavity tooth preparation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112530255A (en) * | 2020-12-14 | 2021-03-19 | 北京欧扬医疗美容门诊部有限公司 | Facial plastic adjustment model |
| CN113658499A (en) * | 2021-09-02 | 2021-11-16 | 青岛市口腔医院 | Double-layer resin tooth for oral cavity tooth body preparation training |
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