CN113367813A - Preparation method of integrated fiber post core for oral cavity - Google Patents
Preparation method of integrated fiber post core for oral cavity Download PDFInfo
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- CN113367813A CN113367813A CN202110615187.6A CN202110615187A CN113367813A CN 113367813 A CN113367813 A CN 113367813A CN 202110615187 A CN202110615187 A CN 202110615187A CN 113367813 A CN113367813 A CN 113367813A
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- pile core
- core
- integrated fiber
- fiber
- oral cavity
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- 239000000835 fiber Substances 0.000 title claims abstract description 100
- 210000000214 mouth Anatomy 0.000 title claims abstract description 27
- 238000002360 preparation method Methods 0.000 title claims abstract description 27
- 239000010453 quartz Substances 0.000 claims abstract description 34
- 239000011347 resin Substances 0.000 claims abstract description 34
- 229920005989 resin Polymers 0.000 claims abstract description 34
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 34
- 210000004262 dental pulp cavity Anatomy 0.000 claims abstract description 28
- 238000000034 method Methods 0.000 claims abstract description 26
- 239000011159 matrix material Substances 0.000 claims abstract description 25
- 238000004088 simulation Methods 0.000 claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 claims abstract description 23
- 239000000725 suspension Substances 0.000 claims abstract description 13
- 238000010146 3D printing Methods 0.000 claims abstract description 8
- 238000013461 design Methods 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 17
- 238000000016 photochemical curing Methods 0.000 claims description 12
- 238000007639 printing Methods 0.000 claims description 9
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 claims description 7
- VNQXSTWCDUXYEZ-UHFFFAOYSA-N 1,7,7-trimethylbicyclo[2.2.1]heptane-2,3-dione Chemical compound C1CC2(C)C(=O)C(=O)C1C2(C)C VNQXSTWCDUXYEZ-UHFFFAOYSA-N 0.000 claims description 6
- 229930185605 Bisphenol Natural products 0.000 claims description 6
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 6
- IISBACLAFKSPIT-UHFFFAOYSA-N bisphenol A Chemical compound C=1C=C(O)C=CC=1C(C)(C)C1=CC=C(O)C=C1 IISBACLAFKSPIT-UHFFFAOYSA-N 0.000 claims description 6
- 229930006711 bornane-2,3-dione Natural products 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 5
- 230000002950 deficient Effects 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- 238000002791 soaking Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 238000001291 vacuum drying Methods 0.000 claims description 3
- 230000008439 repair process Effects 0.000 abstract description 9
- 239000002994 raw material Substances 0.000 abstract description 7
- 238000003801 milling Methods 0.000 abstract description 5
- 230000007774 longterm Effects 0.000 abstract description 4
- 239000012790 adhesive layer Substances 0.000 abstract description 3
- 238000011960 computer-aided design Methods 0.000 description 6
- 239000010410 layer Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000002591 computed tomography Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 210000004268 dentin Anatomy 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- AMFGWXWBFGVCKG-UHFFFAOYSA-N Panavia opaque Chemical compound C1=CC(OCC(O)COC(=O)C(=C)C)=CC=C1C(C)(C)C1=CC=C(OCC(O)COC(=O)C(C)=C)C=C1 AMFGWXWBFGVCKG-UHFFFAOYSA-N 0.000 description 1
- 206010034972 Photosensitivity reaction Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000004840 adhesive resin Substances 0.000 description 1
- 229920006223 adhesive resin Polymers 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000000805 composite resin Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 239000003733 fiber-reinforced composite Substances 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- FZUGPQWGEGAKET-UHFFFAOYSA-N parbenate Chemical compound CCOC(=O)C1=CC=C(N(C)C)C=C1 FZUGPQWGEGAKET-UHFFFAOYSA-N 0.000 description 1
- 230000036211 photosensitivity Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C5/00—Filling or capping teeth
- A61C5/70—Tooth crowns; Making thereof
- A61C5/77—Methods or devices for making crowns
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/02—Inorganic materials
- A61L27/025—Other specific inorganic materials not covered by A61L27/04 - A61L27/12
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L27/00—Materials for grafts or prostheses or for coating grafts or prostheses
- A61L27/14—Macromolecular materials
- A61L27/16—Macromolecular materials obtained by reactions only involving carbon-to-carbon unsaturated bonds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y10/00—Processes of additive manufacturing
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B33—ADDITIVE MANUFACTURING TECHNOLOGY
- B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
- B33Y70/00—Materials specially adapted for additive manufacturing
- B33Y70/10—Composites of different types of material, e.g. mixtures of ceramics and polymers or mixtures of metals and biomaterials
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2430/00—Materials or treatment for tissue regeneration
- A61L2430/12—Materials or treatment for tissue regeneration for dental implants or prostheses
Abstract
A preparation method of an integrated fiber post core for oral cavity comprises the steps of preparing short quartz fiber, preparing light-cured resin matrix and preparing light-cured resin matrix short quartz fiber suspension, and also comprises the following steps: 1) acquiring three-dimensional data; 2) carrying out simulation design on a personalized integrated fiber pile core; 3) manufacturing a 3D printing simulation pile core file; 4) and manufacturing the personalized integrated fiber pile core. The individualized integrated fiber pile core with high tightness with the root canal shape can be quickly and accurately obtained, the resin adhesive layer is thin and uniform after cementation, the bonding area and the occurrence of micro leakage are effectively reduced, the long-term stability of restoration is improved, and the requirement of oral restoration is better met. Compared with the method for manufacturing the integrated fiber pile core by the CAD/CAM, the method has the advantages of high precision, high tightness and no loss of a milling cutter, raw materials are only mixed for standby use during preparation, the corresponding dosage of the raw materials can be adjusted according to requirements, a large amount of raw materials are saved, and the oral cavity repair cost of a patient is remarkably reduced.
Description
Technical Field
The invention relates to a fiber post core, in particular to a preparation method of an integrated fiber post core for oral cavity.
Background
The restoration of the post-core crown is a common dental crown restoration method, and can reserve large-area defective teeth. Common pile cores are metal cast pile cores and finished fiber piles. The elastic modulus of the metal pile core is far higher than that of dentin, so that the tooth root is easy to break, and the metal material is light-tight and cannot meet the aesthetic requirement when the anterior tooth is repaired; most of finished fiber piles are prepared by soaking a quartz fiber bundle or a glass fiber bundle with continuous inside and high strength in a composite resin matrix through tension-compression molding, surface micro-treatment and other modes, the elastic modulus of the finished fiber piles is close to that of dentin, the occurrence of tooth root fracture can be effectively reduced, the color of the finished fiber piles is close to that of a tooth body, the light transmittance is good, the aesthetic requirements can be met, and the finished fiber piles are widely applied in clinic at present. The resin binder can generate polymerization shrinkage during photocuring, the polymerization shrinkage rate is 1.7-3.7%, the adhesive resin can be stripped from the mixed layer, serious micro-leakage is caused to damage an adhesive surface, and the conditions of pile falling, breakage and the like are generated after repair, so that the repair failure is caused, and the long-term stability of the restoration body is influenced. In recent years, an integrated fiber post core manufactured by Computer Aided Design (CAD) and Computer Aided Manufacturing (CAM) has appeared with the application of the technologies of CAD Design and CAM manufacture. According to the technology, accurate three-dimensional data of a tooth body and a root canal is obtained through electronic Computer Tomography (CT) or model scanning, a simulated pile core graph is designed by adopting CAD, and a fiber reinforced composite resin blank is milled into an integrated fiber pile core by utilizing CAM. At present, the integrated fiber pile core has the defects that milling causes cutter abrasion and reduces milling precision, and CAD/CAM belongs to material reduction manufacturing, a resin blank is milled into a specific shape, the utilization rate of raw materials is low, and the manufacturing cost is increased.
Disclosure of Invention
The technical problem to be solved by the invention is to make up for the defects of the prior art and provide a preparation method of an integrated fiber post core for oral cavity.
The technical problem of the invention is solved by the following technical scheme.
The preparation method of the integrated fiber post core for the oral cavity comprises the steps of preparing short quartz fibers, preparing a light-cured resin matrix and preparing a light-cured resin matrix short quartz fiber suspension.
The preparation method of the integrated fiber post core for the oral cavity is characterized in that:
further comprising the steps of:
step 1) acquiring three-dimensional data:
step 2), simulation design of the personalized integrated fiber pile core:
step 3), manufacturing a 3D printing simulation pile core file:
and 4) manufacturing a personalized integrated fiber pile core.
The technical problem of the present invention is solved by the following further technical solutions.
The step 1) of obtaining three-dimensional data comprises the steps of scanning residual tooth bodies in an oral cavity by adopting an oral optical scanning device to obtain three-dimensional data of tooth bodies after preparation of the oral tooth bodies, preparing a prepared root canal impression by using a silicon rubber impression material, and scanning the root canal impression by adopting the oral optical scanning device to obtain three-dimensional data of the root canal impression form.
And 2) reconstructing the residual tooth body and the three-dimensional data based on the shape information of the prepared tooth body by using a computer through SolidWorks professional graphic software based on the three-dimensional data of the prepared tooth body and the prepared root canal impression, forming a three-dimensional image of a root canal pile based on the three-dimensional data of the shape of the root canal impression, and simulating and designing a simulation pile core graphic file of the integrated fiber pile core through SolidWorks professional graphic software, wherein the simulation pile core graphic file carries out personalized pile core modeling according to the anatomical characteristics of the tooth body, the condition of the residual tooth body and the scanning data of the root canal impression, the lower part of the integrated fiber pile core is consistent with the shape of the root canal, the lower edge of the upper part of the integrated fiber pile core is consistent with the upper edge of the residual defective tooth body, and the outer side of the upper part of the integrated fiber pile core is continuous with the outer side of the prepared tooth body and is consistent with the inner side surface of the manufactured dental crown.
And 3) manufacturing a 3D printing simulation pile core file, wherein the simulation pile core graphic file is converted into a Stereolithography (STL) format, then the STL format personalized integrated fiber pile core data is subjected to graphic layering, and finally the graphic layering processed simulation pile core graphic file is led into a 3D printer.
And (3) carrying out graphic layering treatment, wherein the thickness of each printing layer is 25 μm.
And 4) manufacturing the personalized integrated fiber pile core, wherein the manufacturing method comprises the steps of injecting the prepared photo-curing resin matrix short quartz fiber mixed suspension into a resin tank of a 3D printer, printing to form the upper part of the fiber pile core according to the introduced simulation pile core graphic file subjected to graphic layering treatment, and then printing to form the lower part of the fiber pile core, so that the manufacturing of the personalized integrated fiber pile core is completed.
The technical problem of the present invention is solved by the following further technical solutions.
The short quartz fiber is prepared by cutting quartz fiber with the diameter of 5 mu m and the linear density of 72tex into short quartz fiber with the length of 1mm by using a knife switch, soaking the short quartz fiber in sulfuric acid with the temperature of 98 ℃ and the concentration of 30% for 2 hours, taking out the short quartz fiber, and finally drying the short quartz fiber in a vacuum drying oven with the temperature of 100 ℃ for 6 hours for later use.
The light-cured resin matrix comprises the following components in percentage by weight:
45.0 to 54.0 percent of bisphenol A-glycidyl dimethacrylate (Bis-GMA for short);
45.0 to 55.0 percent of methyl methacrylate (MMA for short);
0.5 to 1.0 percent of 4-dimethylamino ethyl benzoate (EDB for short);
the balance of camphorquinone (CQ for short).
Bisphenol a-glycidyl dimethacrylate is one of the main materials, organic chemicals, molecular formula: c29H36O8Its function is as a conventional matrix for mouth repair resins.
Methyl methacrylate is also one of the main materials, organic chemicals, formula: c5H8O2It also functions as a conventional matrix for mouth repair resins.
Ethyl 4-dimethylaminobenzoate is one of the photosensitive materials, photoinitiator, molecular formula: c11H15NO2The function of the UV-curable UV-.
Camphorquinone is also one of photosensitive materials, a chemical with photosensitivity, molecular formula: c10H14O2The functional components are also added into the light-cured dental restoration resin as a visible light initiator.
The preparation method of the photocuring resin matrix comprises the steps of uniformly mixing main materials of bisphenol A-glycidyl dimethacrylate and methyl methacrylate in a dark environment, sequentially adding photosensitive materials of 4-ethyl dimethylaminobenzoate and camphorquinone, uniformly mixing, and finally exhausting air for later use.
The preparation of the photo-curing resin matrix short quartz fiber suspension is to uniformly mix the prepared short quartz fiber and the prepared photo-curing resin matrix into the suspension in a dark environment, and finally to remove air for later use.
Compared with the prior art, the invention has the beneficial effects that:
the method disclosed by the invention adopts the rapid and accurate design and manufacture of a 3D printing technology, the personalized integrated fiber pile core with high conformity with the root canal form can be rapidly and accurately obtained, the bonded resin adhesive layer is thin and uniform, the bonding area and the occurrence of micro leakage are effectively reduced, the long-term stability of repair is improved, and the requirement of oral repair is better met. Compared with the method for manufacturing the integrated fiber pile core by the CAD/CAM, the method has the advantages of high precision, high tightness and no loss of a milling cutter, raw materials are only mixed for standby use during preparation, the corresponding dosage of the raw materials can be adjusted according to requirements, a large amount of raw materials are saved, and the oral cavity repair cost of a patient is remarkably reduced.
Detailed Description
The present invention will be described in further detail with reference to specific embodiments.
It should be emphasized that the following description is a non-limiting and non-exclusive example, merely exemplary, and is not intended to limit the scope of the invention and its applications.
A preparation method of an integrated fiber post core for oral cavity comprises the preparation of short quartz fiber, the preparation of light-cured resin matrix and the preparation of light-cured resin matrix short quartz fiber suspension.
The short quartz fiber was prepared by cutting a quartz fiber having a diameter of 5 μm and a linear density of 72tex into a short quartz fiber having a length of 1mm using a guillotine, soaking the short quartz fiber in sulfuric acid having a temperature of 98 ℃ and a concentration of 30% for 2 hours, taking out, and finally drying in a vacuum drying oven having a temperature of 100 ℃ for 6 hours.
The preparation of the light-cured resin matrix is that main materials of bisphenol A-glycidyl dimethacrylate and methyl methacrylate with the content of 54.0 percent and 45.0 percent respectively are evenly mixed under the dark environment, then photosensitive materials of 4-ethyl dimethylaminobenzoate and camphorquinone with the content of 0.5 percent and 0.5 percent respectively are sequentially added and evenly mixed, and finally air is exhausted.
The preparation of the photo-curing resin matrix short quartz fiber suspension is to uniformly mix the prepared short quartz fiber and the prepared photo-curing resin matrix into the suspension in a dark environment and finally to exhaust air.
The method is characterized by further comprising the following steps:
step 1) acquiring three-dimensional data
Scanning residual tooth bodies in an oral cavity by adopting an oral optical scanning device to acquire three-dimensional data of tooth bodies after preparation of the tooth bodies in the oral cavity, preparing a prepared root canal impression by using a silicon rubber impression material, and scanning the root canal impression by adopting the oral optical scanning device to acquire three-dimensional data of the root canal impression form;
step 2) simulation design personalized integrated fiber pile core
The method comprises the following steps of reconstructing residual tooth bodies through SolidWorks professional graphic software by adopting a computer based on three-dimensional data of the prepared tooth bodies and morphological information of prepared root canal impressions, forming a three-dimensional image of a root canal pile based on the three-dimensional data of the root canal impressions, and designing a simulation pile core graphic file of an integrated fiber pile core through SolidWorks professional graphic software simulation, wherein the simulation pile core graphic file carries out personalized pile core modeling according to anatomical characteristics of the tooth bodies, the conditions of the residual tooth bodies and root canal impression scanning data, the lower part of the integrated fiber pile core is consistent with the shape of the root canal, the lower edge of the upper part of the integrated fiber pile core is consistent with the upper edge of the residual defective tooth bodies, and the outer side of the upper part of the integrated fiber pile core is continuous with the outer side of the prepared tooth bodies and is consistent with the inner side surface of a manufactured dental crown:
step 3) making a 3D printing simulation pile core file
Converting the simulation pile core graphic file into a Stereolithography (STL) format, then carrying out graphic layering processing on the individualized integrated fiber pile core data in the STL format, and finally importing the simulation pile core graphic file subjected to graphic layering processing into a 3D printer, wherein the thickness of each layer of a printing layer subjected to graphic layering processing is 25 mu m;
step 4) manufacturing the personalized integrated fiber pile core
The method comprises the steps of injecting the prepared photo-curing resin matrix short quartz fiber suspension into a resin tank of a 3D printer, printing to form the upper part of a fiber pile core according to an introduced simulation pile core graphic file subjected to graphic layering treatment, and then printing to form the lower part of the fiber pile core, so as to finish the manufacture of the personalized integrated fiber pile core.
This embodiment adopts the quick accurate design and the preparation of 3D printing technique, does not have the loss of milling cutter, and raw and other materials only mix for use when preparing, can save a large amount of raw and other materials according to the corresponding quantity of demand adjustment raw and other materials, is showing the oral cavity repair expense that reduces the patient.
The individualized integrated fiber post core obtained quickly and accurately by the specific embodiment has high form fit with the root canal, the resin adhesive layer is thin and uniform after cementation, the bonding area is reduced, the incidence rate of micro leakage is obviously reduced, the long-term stability of restoration is high, and the requirement of oral restoration can be better met.
The foregoing is a more detailed description of the invention in connection with specific preferred embodiments and it is not intended that the invention be limited to these specific details. For those skilled in the art to which the invention pertains, several equivalent substitutions or obvious modifications, which are equivalent in performance or use, without departing from the inventive concept, should be considered as falling within the scope of the present invention as defined by the appended claims.
Claims (10)
1. A preparation method of an integrated fiber post core for oral cavity comprises the preparation of short quartz fiber, the preparation of light-cured resin matrix and the preparation of light-cured resin matrix short quartz fiber suspension, and is characterized in that:
further comprising the steps of:
step 1) acquiring three-dimensional data:
step 2), simulation design of the personalized integrated fiber pile core:
step 3), manufacturing a 3D printing simulation pile core file:
and 4) manufacturing a personalized integrated fiber pile core.
2. The method for preparing the integrated fiber post core for the oral cavity according to claim 1, wherein the method comprises the following steps:
the step 1) of obtaining three-dimensional data comprises the steps of scanning residual tooth bodies in an oral cavity by adopting an oral optical scanning device to obtain three-dimensional data of tooth bodies after preparation of the oral tooth bodies, preparing a prepared root canal impression by using a silicon rubber impression material, and scanning the root canal impression by adopting the oral optical scanning device to obtain three-dimensional data of the root canal impression form.
3. The method for preparing the integrated fiber post core for the oral cavity according to claim 1, wherein the method comprises the following steps:
and 2) reconstructing the residual tooth body and the three-dimensional data based on the shape information of the prepared tooth body by using a computer through SolidWorks professional graphic software based on the three-dimensional data of the prepared tooth body and the prepared root canal impression, forming a three-dimensional image of a root canal pile based on the three-dimensional data of the shape of the root canal impression, and simulating and designing a simulation pile core graphic file of the integrated fiber pile core through SolidWorks professional graphic software, wherein the simulation pile core graphic file carries out personalized pile core modeling according to the anatomical characteristics of the tooth body, the condition of the residual tooth body and the scanning data of the root canal impression, the lower part of the integrated fiber pile core is consistent with the shape of the root canal, the lower edge of the upper part of the integrated fiber pile core is consistent with the upper edge of the residual defective tooth body, and the outer side of the upper part of the integrated fiber pile core is continuous with the outer side of the prepared tooth body and is consistent with the inner side surface of the manufactured dental crown.
4. The method for preparing the integrated fiber post core for the oral cavity according to claim 1, wherein the method comprises the following steps:
and 3) manufacturing a 3D printing simulation pile core file, wherein the simulation pile core graphic file is converted into a stereolithography STL format, then graphic layering processing is carried out on the individualized integrated fiber pile core data in the STL format, and finally the simulation pile core graphic file subjected to graphic layering processing is led into a 3D printer.
5. The method for preparing the integrated fiber post core for oral cavity according to claim 1 or 4, wherein:
and (3) carrying out graphic layering treatment, wherein the thickness of each printing layer is 25 μm.
6. The method for preparing the integrated fiber post core for the oral cavity according to claim 1, wherein the method comprises the following steps:
and 4) manufacturing the personalized integrated fiber pile core, wherein the manufacturing method comprises the steps of injecting the prepared photo-curing resin matrix short quartz fiber mixed suspension into a resin tank of a 3D printer, printing to form the upper part of the fiber pile core according to the introduced simulation pile core graphic file subjected to graphic layering treatment, and then printing to form the lower part of the fiber pile core, so that the manufacturing of the personalized integrated fiber pile core is completed.
7. The method for preparing the integrated fiber post core for the oral cavity according to claim 1, wherein the method comprises the following steps:
the short quartz fiber is prepared by cutting quartz fiber with the diameter of 5 mu m and the linear density of 72tex into short quartz fiber with the length of 1mm by using a knife switch, soaking the short quartz fiber in sulfuric acid with the temperature of 98 ℃ and the concentration of 30% for 2 hours, taking out the short quartz fiber, and finally drying the short quartz fiber in a vacuum drying oven with the temperature of 100 ℃ for 6 hours for later use.
8. The method for preparing the integrated fiber post core for the oral cavity according to claim 1, wherein the method comprises the following steps:
the light-cured resin matrix comprises the following components in percentage by weight:
45.0 to 54.0 percent of bisphenol A-glycidyl dimethacrylate;
45.0 to 55.0 percent of methyl methacrylate;
0.5 to 1.0 percent of 4-dimethylamino ethyl benzoate;
and the balance of camphorquinone.
9. The method for preparing the integrated fiber post core for oral cavity according to claim 1 or 8, wherein:
the preparation method of the photocuring resin matrix comprises the steps of uniformly mixing main materials of bisphenol A-glycidyl dimethacrylate and methyl methacrylate in a dark environment, sequentially adding photosensitive materials of 4-ethyl dimethylaminobenzoate and camphorquinone, uniformly mixing, and finally exhausting air.
10. The method for preparing the integrated fiber post core for the oral cavity according to claim 1, wherein the method comprises the following steps:
the preparation of the photo-curing resin matrix short quartz fiber suspension is to uniformly mix the prepared short quartz fiber and the prepared photo-curing resin matrix into a suspension in a dark environment, and finally to exhaust air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110615187.6A CN113367813A (en) | 2021-06-02 | 2021-06-02 | Preparation method of integrated fiber post core for oral cavity |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110615187.6A CN113367813A (en) | 2021-06-02 | 2021-06-02 | Preparation method of integrated fiber post core for oral cavity |
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| CN113367813A true CN113367813A (en) | 2021-09-10 |
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| CN202110615187.6A Pending CN113367813A (en) | 2021-06-02 | 2021-06-02 | Preparation method of integrated fiber post core for oral cavity |
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|---|---|---|---|---|
| EP2281524A1 (en) * | 2009-08-05 | 2011-02-09 | Harald E. Nordin | Dental post |
| CN105711101A (en) * | 2016-04-14 | 2016-06-29 | 浙江理工大学 | Production device and preparation method for short-fiber reinforced 3D composite material |
| CN111067650A (en) * | 2020-01-14 | 2020-04-28 | 南京医科大学附属口腔医院 | Novel digital pile-core impression acquisition and model building technology without gypsum |
-
2021
- 2021-06-02 CN CN202110615187.6A patent/CN113367813A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2281524A1 (en) * | 2009-08-05 | 2011-02-09 | Harald E. Nordin | Dental post |
| CN105711101A (en) * | 2016-04-14 | 2016-06-29 | 浙江理工大学 | Production device and preparation method for short-fiber reinforced 3D composite material |
| CN111067650A (en) * | 2020-01-14 | 2020-04-28 | 南京医科大学附属口腔医院 | Novel digital pile-core impression acquisition and model building technology without gypsum |
Non-Patent Citations (3)
| Title |
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