CN112914768A - Implant upper denture casting process - Google Patents
Implant upper denture casting process Download PDFInfo
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- CN112914768A CN112914768A CN202110239511.9A CN202110239511A CN112914768A CN 112914768 A CN112914768 A CN 112914768A CN 202110239511 A CN202110239511 A CN 202110239511A CN 112914768 A CN112914768 A CN 112914768A
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/08—Artificial teeth; Making same
- A61C13/081—Making teeth by casting or moulding
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
- A61C13/00—Dental prostheses; Making same
- A61C13/08—Artificial teeth; Making same
- A61C13/083—Porcelain or ceramic teeth
- A61C13/0835—Ceramic coating on metallic body
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Abstract
The invention discloses an implant upper denture casting process, which comprises the following steps: step one, molding a mold; step two, printing; step three, embedding; step four, casting; step five, polishing; step six, weighing; step seven, mixing; step eight, molding; according to the invention, the finished product detection model is prepared again in the process of preparing the manufacturing model, so that the detection and comparison of the manufactured false tooth are facilitated, the rework times are reduced, the working efficiency is improved, the wax crown printed by using the printing technology is beneficial to improving the accuracy of the wax crown, further the false tooth is beneficial to subsequent preparation, the quality of the false tooth is improved, meanwhile, the basic frit and the mixed frit are mixed to be used as the preparation raw material of the color masking porcelain, the condition that the color masking porcelain is prepared by using a single frit in the prior art is changed, the color masking porcelain is beneficial to being combined with the metal dental crown, the falling rate and the cracking rate of the color masking porcelain and the metal dental crown are reduced, and the service life of the false tooth is prolonged.
Description
Technical Field
The invention relates to the technical field of false teeth, in particular to a casting process of an upper false tooth of an implant.
Background
The denture is what is commonly called a "denture". Just like "leg prosthesis" and "prosthetic limb" are referred to as "prosthetic limb", a "denture" means that the human being is "obligated" to the utmost. The medical science is a general term for restorations made after partial or all of the upper and lower teeth are missing, wherein dentures are planted in a way of credence, wherein the planted dentures are also called as 'dental implants', and are one of the conventional treatment methods for repairing dentition defects or dentition missing at present. Clinically, the implant is required to realize good osseointegration with bone tissues, and titanium alloy have good biocompatibility and ideal mechanical properties, so that the titanium and titanium alloy are the most widely applied dental implant materials at present. The defects or the defects of the teeth are repaired by the implantation technology, so that the oral cavity and the facial appearance of a patient can achieve a harmonious and natural aesthetic effect, the chewing function is improved, the effect can be generally maintained for more than 10 years, but in the casting process of the existing implanted denture, a manufacturer manufactures the implanted denture by the manufactured model, but in the using manufacturing process, the manufactured model needs to be observed for many times, the damage of the manufactured model is easily caused in the process of taking and manufacturing the model, the details of the denture to be manufactured are not favorably observed, the error of manufacturing the denture is further improved, the rework phenomenon is easily caused in the subsequent using process, the working efficiency is further reduced, meanwhile, in the process of manufacturing the wax crown, the wax is injected into the manufactured model in the traditional mode, and the quality of the denture is easily reduced due to the error in the manufacturing process by adopting the mode, and the color-masking porcelain in the conventional denture is made of a single frit, so that the color-masking porcelain is separated from the metal crown in the long-term use of the denture, thereby reducing the service life of the denture.
Disclosure of Invention
The invention aims to provide an implant upper denture casting process to solve the problems in the background technology.
In order to solve the technical problems, the invention provides the following technical scheme: an implant upper denture casting process comprises the following steps: step one, molding a mold; step two, printing; step three, embedding; step four, casting; step five, polishing; step six, weighing; step seven, mixing; step eight, molding;
wherein in the first step, firstly, the patient bites the tooth impression to take the impression through the soft material silicon rubber in the patient with the treated oral cavity, then the obtained impression is filled into the impression by using the paste solution gypsum, then the gypsum model is taken out, then gypsum is poured into the impression again by using the pasty solution to obtain gypsum models, then one of the gypsum models is used as a semi-finished product detection model, the other gypsum model is used as a manufacturing model, then polishing gum on the semi-finished product detection model, then making gum silica gel overflow channel on the impression, then, coating separation glue on the impression, carrying out mold closing treatment on the impression and the semi-finished product detection model, then injecting silica gel on the set gum silica gel overflow channel for treatment, and separating the mold after the silica gel is solidified to obtain a finished product detection model for later use;
in the second step, the manufactured model obtained in the first step is scanned by a scanner, and then the wax crown is directly printed by data obtained by scanning of the scanner through a computer and a 3D printing technology;
in the third step, water, embedding liquid and embedding powder are mixed into embedding pasty liquid according to a certain proportion, then the wax crown obtained in the second step is plugged with two wax strips and embedded into the embedding pasty liquid together, and an embedding ring can be obtained after solidification;
in the fourth step, the embedding ring obtained in the third step is placed in an oven, after the wax and the water are completely gasified, the required metal is heated into solution, liquid metal is poured into the embedding ring in a centrifugal mode, and then the embedding ring is cooled to the normal temperature, so that the metal dental crown can be cast;
in the fifth step, the metal dental crown obtained in the fourth step is subjected to grinding and thickness adjusting treatment, and then the ground metal dental crown is reserved;
in the sixth step, a certain amount of SiO is weighed2、A120、Na2O、K20、Mg0、CaO、SrO、BaO、TiO2、SnO2、Li2O and B203Mixing, placing in a quartz crucible, placing in a high temperature furnace, heating to 1250-2、A1203、K20、Na2O、B203、MgO、Li2O and TiO2Mixing and placing the mixture in a quartz crucible, then placing the mixture in a high-temperature furnace, heating the metal to 1300-;
in the seventh step, the mixed frit and the basic frit obtained in the sixth step are respectively ground, then a screen is used for screening to respectively obtain mixed powder and basic powder, and then the mixed powder and the basic powder are mixed to obtain ceramic powder;
and step eight, coating the ceramic powder obtained in step seven on the surface of the metal dental crown obtained after treatment in step five by using an adhesive, drying and calcining, cooling to obtain a semi-finished dental crown after calcination, then coating dentin porcelain on the surface of the semi-finished dental crown according to a conventional method, then grinding, glazing and polishing to obtain a semi-finished denture, then carrying out comparative analysis on the obtained semi-finished denture and the finished product detection model obtained in step one to determine that the semi-finished denture is not qualified, then fixedly matching and connecting the qualified semi-finished denture according to the required dental implant abutment and implant, and then carrying out quality inspection on the qualified denture.
According to the technical scheme, in the third step, the weight ratio of water to the embedding liquid is 1: 4.
According to the technical scheme, in the sixth step, SiO is adopted2、A120、Na2O、K20、Mg0、CaO、SrO、BaO、TiO2、SnO2、Li2O and B203The weight ratio of the components is 270: 35: 30: 5: 10: 40: 5: 1: 10: 30: 10: 20.
According to the above technical scheme, in the seventh step, the mesh number of the screen is 200-250 meshes.
According to the technical scheme, in the seventh step, the weight ratio of the mixed powder to the base powder in the porcelain powder is 4: 1.
According to the technical scheme, in the eighth step, the calcination temperature is 900-950 ℃.
Compared with the prior art, the invention has the following beneficial effects: according to the invention, in the process of preparing the manufacturing model, a finished product detection model is prepared again, so that the manufactured false tooth is favorably detected and compared, the number of times of false tooth reworking is reduced, the working efficiency is improved, the wax crown is printed by using the printing technology, the traditional wax crown manufacturing mode is changed, the working efficiency is improved, the accuracy of the wax crown is improved, the subsequent false tooth preparation is favorably realized, the quality of the false tooth is improved, meanwhile, the basic frit and the mixed frit are mixed to serve as the preparation raw materials of the color masking porcelain, the color masking porcelain prepared by using a single frit in the traditional method is changed, the color masking porcelain is favorably combined with the metal dental crown, the falling rate and the cracking rate of the color masking porcelain and the metal dental crown are reduced, and the service life of the false tooth is prolonged.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a process flow diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: an implant upper denture casting process comprises the following steps: step one, molding a mold; step two, printing; step three, embedding; step four, casting; step five, polishing; step six, weighing; step seven, mixing; step eight, molding;
wherein in the first step, firstly, the patient bites the tooth impression to take the impression through the soft material silicon rubber in the patient with the treated oral cavity, then the obtained impression is filled into the impression by using the paste solution gypsum, then the gypsum model is taken out, then gypsum is poured into the impression again by using the pasty solution to obtain gypsum models, then one of the gypsum models is used as a semi-finished product detection model, the other gypsum model is used as a manufacturing model, then polishing gum on the semi-finished product detection model, then making gum silica gel overflow channel on the impression, then, coating separation glue on the impression, carrying out mold closing treatment on the impression and the semi-finished product detection model, then injecting silica gel on the set gum silica gel overflow channel for treatment, and separating the mold after the silica gel is solidified to obtain a finished product detection model for later use;
in the second step, the manufactured model obtained in the first step is scanned by a scanner, and then the wax crown is directly printed by data obtained by scanning of the scanner through a computer and a 3D printing technology;
in the third step, water, embedding liquid and embedding powder are mixed into embedding pasty liquid according to a certain proportion, the weight ratio of the water to the embedding liquid is 1: 4, then the wax crown obtained in the second step is plugged with two wax strips and embedded into the embedding pasty liquid, and an embedding ring can be obtained after solidification;
in the fourth step, the embedding ring obtained in the third step is placed in an oven, after the wax and the water are completely gasified, the required metal is heated into solution, liquid metal is poured into the embedding ring in a centrifugal mode, and then the embedding ring is cooled to the normal temperature, so that the metal dental crown can be cast;
in the fifth step, the metal dental crown obtained in the fourth step is subjected to grinding and thickness adjusting treatment, and then the ground metal dental crown is reserved;
in the sixth step, a certain amount of SiO is weighed2、A120、Na2O、K20、Mg0、CaO、SrO、BaO、TiO2、SnO2、Li2O and B203Mixing, placing in a quartz crucible, placing in a high temperature furnace, heating to 1250-2、A120、Na2O、K20、Mg0、CaO、SrO、BaO、TiO2、 SnO2、Li2O and B203In a weight ratio of 270: 35: 30: 5: 10: 40: 5: 1: 10: 30: 10: 20, and then weighing a certain amount of SiO2、A1203、K20、Na2O、B203、MgO、Li2O and TiO2Mixing and placing the mixture in a quartz crucible, then placing the mixture in a high-temperature furnace, heating the metal to 1300-;
in the seventh step, the mixed frit and the basic frit obtained in the sixth step are respectively ground, then a screen is used for screening to respectively obtain mixed powder and basic powder, the mesh number of the screen is 200-250 meshes, then the mixed powder and the basic powder are mixed to obtain porcelain powder, and the weight ratio of the mixed powder to the basic powder in the porcelain powder is 4: 1;
coating the porcelain powder obtained in the step seven on the surface of the metal dental crown obtained after treatment in the step five by using an adhesive, drying and calcining, wherein the calcining temperature is 900-950 ℃, cooling to obtain a semi-finished dental crown after calcining is finished, then applying dentin porcelain on the surface of the semi-finished dental crown according to a conventional method, then grinding, glazing and polishing to obtain a semi-finished denture, then performing comparative analysis on the obtained semi-finished denture and the finished product detection model obtained in the step one to determine that the semi-finished denture is non-qualified, then fixedly matching and connecting the qualified semi-finished denture according to a required implant abutment and an implant, and finally performing quality inspection on the qualified denture for storage.
Based on the above, the false tooth manufacturing method has the advantages that the prepared finished product detection model and the manufactured false tooth are used for detection and comparison, errors between the false tooth and the false tooth required by a customer can be directly observed, the number of times of false tooth reworking is reduced, the working efficiency is improved, meanwhile, the wax crown is printed through the printing technology, the accuracy of the wax crown can be improved, the subsequent false tooth preparation is facilitated, the quality of the false tooth is improved, in addition, when the color shading porcelain is prepared on the false tooth, the basic frit and the mixed frit are mixed for preparation, the color shading porcelain and the metal dental crown can be combined favorably, the falling rate and the cracking rate of the color shading porcelain and the metal dental crown are reduced, and the service life of the false tooth is prolonged.
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.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (6)
1. An implant upper denture casting process comprises the following steps: step one, molding a mold; step two, printing; step three, embedding; step four, casting; step five, polishing; step six, weighing; step seven, mixing; step eight, molding; the method is characterized in that:
wherein in the first step, firstly, the patient bites the tooth impression to take the impression through the soft material silicon rubber in the patient with the treated oral cavity, then the obtained impression is filled into the impression by using the paste solution gypsum, then the gypsum model is taken out, then gypsum is poured into the impression again by using the pasty solution to obtain gypsum models, then one of the gypsum models is used as a semi-finished product detection model, the other gypsum model is used as a manufacturing model, then polishing gum on the semi-finished product detection model, then making gum silica gel overflow channel on the impression, then, coating separation glue on the impression, carrying out mold closing treatment on the impression and the semi-finished product detection model, then injecting silica gel on the set gum silica gel overflow channel for treatment, and separating the mold after the silica gel is solidified to obtain a finished product detection model for later use;
in the second step, the manufactured model obtained in the first step is scanned by a scanner, and then the wax crown is directly printed by data obtained by scanning of the scanner through a computer and a 3D printing technology;
in the third step, water, embedding liquid and embedding powder are mixed into embedding pasty liquid according to a certain proportion, then the wax crown obtained in the second step is plugged with two wax strips and embedded into the embedding pasty liquid together, and an embedding ring can be obtained after solidification;
in the fourth step, the embedding ring obtained in the third step is placed in an oven, after the wax and the water are completely gasified, the required metal is heated into solution, liquid metal is poured into the embedding ring in a centrifugal mode, and then the embedding ring is cooled to the normal temperature, so that the metal dental crown can be cast;
in the fifth step, the metal dental crown obtained in the fourth step is subjected to grinding and thickness adjusting treatment, and then the ground metal dental crown is reserved;
in the sixth step, a certain amount of SiO is weighed2、A120、Na2O、K20、Mg0、CaO、SrO、BaO、TiO2、SnO2、Li2O and B203Mixing, placing in a quartz crucible, placing in a high temperature furnace, heating to 1250-2、A1203、K20、Na2O、B203、MgO、Li2O and TiO2Mixing and placing the mixture in a quartz crucible, then placing the mixture in a high-temperature furnace, heating the metal to 1300-;
in the seventh step, the mixed frit and the basic frit obtained in the sixth step are respectively ground, then a screen is used for screening to respectively obtain mixed powder and basic powder, and then the mixed powder and the basic powder are mixed to obtain ceramic powder;
and step eight, coating the ceramic powder obtained in step seven on the surface of the metal dental crown obtained after treatment in step five by using an adhesive, drying and calcining, cooling to obtain a semi-finished dental crown after calcination, then coating dentin porcelain on the surface of the semi-finished dental crown according to a conventional method, then grinding, glazing and polishing to obtain a semi-finished denture, then carrying out comparative analysis on the obtained semi-finished denture and the finished product detection model obtained in step one to determine that the semi-finished denture is not qualified, then fixedly matching and connecting the qualified semi-finished denture according to the required dental implant abutment and implant, and then carrying out quality inspection on the qualified denture.
2. The implant upper denture casting process according to claim 1, wherein: in the third step, the weight ratio of water to embedding liquid is 1: 4.
3. The implant upper denture casting process according to claim 1, wherein: in the sixth step, SiO2、A120、Na2O、K20、Mg0、CaO、SrO、BaO、TiO2、 SnO2、Li2O and B203The weight ratio of the components is 270: 35: 30: 5: 10: 40: 5: 1: 10: 30: 10: 20.
4. The implant upper denture casting process according to claim 1, wherein: in the seventh step, the mesh number of the screen is 200-250 meshes.
5. The implant upper denture casting process according to claim 1, wherein: in the seventh step, the weight ratio of the mixed powder to the basic powder in the porcelain powder is 4: 1.
6. The implant upper denture casting process according to claim 1, wherein: in the step eight, the calcination temperature is 900-950 ℃.
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| CN110946665A (en) * | 2019-11-26 | 2020-04-03 | 山西金兔义齿有限公司 | Technology for repairing false tooth by 3D printing of titanium-based composite material |
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| US20070196788A1 (en) * | 2005-11-18 | 2007-08-23 | Dentsply International Inc. | Translucent veneering for a dental prosthesis formed by a press to metal process |
| US20110183293A1 (en) * | 2007-06-13 | 2011-07-28 | Dentalwig LLC | Kit for fabricating and maintaining dentures and dental apparatus and for personal and professional tooth whitening by autonomous dental impression taking |
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Application publication date: 20210608 |