CN112754704A - Embedded zirconia false tooth and production process thereof - Google Patents
Embedded zirconia false tooth and production process thereof Download PDFInfo
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- CN112754704A CN112754704A CN202011561656.2A CN202011561656A CN112754704A CN 112754704 A CN112754704 A CN 112754704A CN 202011561656 A CN202011561656 A CN 202011561656A CN 112754704 A CN112754704 A CN 112754704A
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- 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
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Abstract
The application relates to the technical field of zirconia false teeth and discloses an embedded zirconia false tooth, which comprises a zirconia body, wherein an embedded groove is formed in the end face of one end, meshed with a natural tooth of a human body, of the zirconia body, and a resin body is embedded in the embedded groove. The application also discloses a production process of the embedded zirconia false tooth, which comprises the following steps of 1: making a gypsum model and finishing; step 2: punching a part to be repaired; and step 3: cutting a portion to be repaired; and 4, step 4: scanning a part to be repaired, and performing repair design; and 5: cutting a zirconia body, and reserving an embedded groove at the top of the zirconia body; step 6: glazing the surface of the zirconia body; and 7: stacking and solidifying the resin body in the embedded groove; and 8: and finally checking and sterilizing. This application divide into zirconia body and resin body with the artificial tooth, and the occlusal surface of human natural tooth only contacts with the surface of resin body, has reduced the harm to human natural tooth.
Description
Technical Field
The application relates to the field of denture production, in particular to an embedded zirconia denture and a production process thereof.
Background
The zirconia (i.e., zirconia) all-ceramic tooth is one of all-ceramic porcelain teeth, and is called a zirconia all-ceramic tooth because the inner structural material thereof is zirconia ceramic. The zirconium dioxide has very high melting point and hardness, the melting point can reach 2680 ℃, and the hardness is inferior to that of diamond, so the zirconium dioxide full-ceramic tooth has very high hardness and compressive strength.
In view of the above-mentioned related technologies, the inventors found that, in the wearing process of the zirconia all-ceramic tooth, at the position where the natural tooth of the human body and the zirconia all-ceramic tooth are engaged with each other, the tooth of the human body is greatly damaged under the action of the high hardness of the zirconia all-ceramic tooth.
Disclosure of Invention
In order to reduce the damage of the zirconia all-ceramic tooth to the tooth of a human body, the application provides an embedded zirconia false tooth and a production process thereof.
In a first aspect, the present application provides an embedded zirconia denture, which adopts the following technical scheme:
the embedded zirconia false tooth comprises a zirconia body, wherein an embedded groove is formed in the end face of one end, meshed with natural teeth of a human body, of the zirconia body, and a resin body is embedded in the embedded groove.
Through adopting above-mentioned technical scheme, divide into zirconia body and resin body with the artificial tooth, with human normal tooth interlock in-process, the occlusal surface of human normal tooth only contacts with the surface of resin body, and the resin material is compared in the zirconium dioxide material and has lower hardness, has reduced the harm to human natural tooth, and simultaneously, the resin is more economical, and the color and luster is very close the colour of patient's normal tooth, and it is better to wear the effect.
Preferably, the area of the embedding groove notch accounts for 2/3-3/4 of the area of the end face of the zirconia body.
Through adopting above-mentioned technical scheme, set up the area of embedded groove notch into 2/3-3/4 who accounts for zirconia body terminal surface area, make resin body and natural tooth have great area of contact, simultaneously, also enable resin body and have great installation strength in zirconia body.
In a second aspect, the application provides a production process of an embedded zirconia denture, which adopts the following technical scheme:
a production process of an embedded zirconia false tooth comprises
Step 1: making a gypsum model and finishing;
step 2: punching a part to be repaired in the plaster model;
and step 3: cutting the plaster model to cut off the part to be repaired;
and 4, step 4: scanning the part to be repaired, and performing repair design on the part to be repaired by using a computer;
and 5: cutting a zirconia body according to a program designed by a computer, and reserving an embedded groove at the top of the zirconia body;
step 6: glazing the surface of the zirconia body;
and 7: stacking and solidifying the resin body in the embedded groove;
and 8: and finally checking and sterilizing.
By adopting the technical scheme, the embedded groove is formed in the zirconium oxide body, and the resin body is piled in the embedded groove, so that the harm to natural teeth of a human body is reduced, meanwhile, the resin is economical, the color is very close to the color of normal teeth of a patient, and the wearing effect is better; meanwhile, the surface of the zirconia body is subjected to glazing treatment, so that the smoothness of the zirconia surface can be improved, and the abrasion of zirconia to adjacent jaw teeth can be reduced.
Preferably, step 1: making a plaster model comprises: s1: stirring the gypsum; s2: applying gypsum on the impression tray and waiting for the gypsum to set; s3: removing the plaster model from the impression tray; s4: and respectively grinding the outer side and the inner side of the plaster model.
By adopting the technical scheme, the plaster is smeared on the impression tray to manufacture the plaster model, so that the position relation of the teeth in the mouth of a patient can be restored to a greater extent, and a better basis is provided for manufacturing the restoration.
Preferably, when the outer side of the plaster mold is ground in S3, the plaster mold may be ground by a water mill.
By adopting the technical scheme, the water mill is utilized to trim the gypsum model, the splashing of dust in the grinding process is reduced, the working environment in use is improved, the pollution to air is reduced, and the production requirement of green production is met.
Preferably, in step 5: and (3) after cutting out the zirconia body, sintering the zirconia body, wherein the sintering temperature is controlled to be 1400-1600 ℃, and the sintering time is 7-9 h.
By adopting the technical scheme, the hardness of the cut zirconia is low, the zirconia body needs to be sintered, and the strength of the zirconia can be improved by sintering.
Preferably, in step 6: during glazing treatment, the surface of the zirconia body is coated with glaze paste, and after the glaze paste is coated, the zirconia body is heated, the heating temperature is 800-1000 ℃, and the heating time is controlled to be 12-17 min.
By adopting the technical scheme, the glazing treatment can improve the smoothness of the surface of the zirconia and reduce the abrasion of the zirconia to the adjacent jaw teeth, compared with the polishing treatment of the zirconia, the steps are simpler and more convenient, and the glazing is finished and then heated to 800-1000 ℃, so that the glaze paste can be fully coated and fixed on the surface of the zirconia body.
Preferably, in step 7: and after the resin body is subjected to stacking molding, curing the resin body in a light curing mode for 8-12 min.
Through adopting above-mentioned technical scheme, the mode of photocuring is adopted to the curing mode of resin body, compares in heating curing and room temperature chemical curing, and the curing mode is simple and convenient more, and easy to operate, can not cause the pollution.
In summary, the present application includes at least one of the following beneficial technical effects:
1. the artificial tooth is divided into the zirconia body and the resin body, in the occlusion process of the artificial tooth and the normal teeth of a human body, the occlusal surface of the normal teeth of the human body is only contacted with the surface of the resin body, and the resin material has lower hardness compared with the zirconium dioxide material, so that the harm to the natural teeth of the human body is reduced;
2. the surface of the zirconia body is subjected to glazing treatment, so that the smoothness of the zirconia surface can be improved, and the abrasion of zirconia to adjacent jaw teeth can be reduced;
3. utilize the water mill to maintain the gypsum model, reduce splashing of dust among the grinding process, improved the operational environment when using, reduced the pollution to the air, accord with the production requirement of green production.
Drawings
Fig. 1 is a schematic view of a structure of an embedded zirconia denture according to an embodiment of the present application.
Description of reference numerals: 1. a zirconia body; 2. a resin body; 3. and a groove is embedded.
Detailed Description
The present application is described in further detail below with reference to fig. 1.
The embodiment of the application discloses an embedded zirconia denture.
Referring to fig. 1, the embedded zirconia false tooth comprises a zirconia body 1 engaged with natural teeth, an embedded groove 3 is formed on the end surface of the zirconia body 1 engaged with the natural teeth, and a resin body 2 is piled and molded in the embedded groove 3. When teeth of a patient with the embedded zirconia false tooth are occluded, the part meshed with natural teeth is only the resin body 2, so that harm to the natural teeth of a human body can be effectively reduced, meanwhile, the resin is economical, the color and luster are very close to the color of the normal teeth of the patient, and the wearing effect is better.
The embedded groove 3 can be opened along the peripheral side of the zirconia, the area of the notch of the embedded groove 3 accounts for 2/3-3/4 of the area of the end face of the zirconia body 1, and preferably, the area of the notch of the embedded groove 3 accounts for 2/3 of the area of the end face of the zirconia body 1. The resin body 2 can have a large contact area with the natural tooth and the resin body 2 can have a large mounting strength in the zirconia body 1.
The application also discloses a production process of the embedded zirconia false tooth.
Step 1: making a gypsum model and finishing; the method comprises the following specific steps: s1: stirring the gypsum by using a vacuum stirrer to make the gypsum stirred into a viscous state; s2: smearing the stirred gypsum on a impression tray, and waiting for the gypsum to solidify to form a gypsum model; s3: removing the plaster model from the impression tray; s4: the outer peripheral wall of the gypsum model is polished by the water mill, and the inner peripheral wall of the gypsum model is polished by the inner mill. The surface of the plaster model is smooth and complete, and the operation of the part to be repaired is convenient.
Step 2: and punching the part to be repaired in the plaster model, wherein the punching position is positioned on the end surface of the part to be repaired close to the other dentition, and the punching function is used for positioning the mounting position of the implant nail when the restoration is mounted.
And step 3: cutting the plaster model, and cutting off the part to be repaired by using a cutting machine; the purpose of cutting off the part to be repaired is to facilitate observation of the peripheral side of the part to be repaired and design of the prosthesis.
And 4, step 4: scanning the part to be repaired by using a scanner, and performing repair design on the part to be repaired by using computer software;
and 5: the method comprises the steps of inputting a program typeset designed by a computer into a magnetic disk, guiding the program into a control box of a cutting machine, cutting a zirconia body 1 by using the cutting machine, and reserving an embedded groove 3 at the top of the zirconia body 1;
and after cutting out the zirconia body 1, sintering the zirconia body 1 cut by using a sintering furnace, wherein the sintering temperature is controlled to be 1400-1600 ℃ in the sintering process, the sintering time is 7-9h, preferably, the sintering temperature is 1500 ℃, and the sintering time is 8 h.
Step 6: glazing the surface of the zirconia body 1, wherein during glazing, firstly, the glaze paste is stirred, then the stirred glaze paste is smeared on the surface of the zirconia body 1, then the zirconia body 1 coated with the glaze paste is put into a zirconia dryer and heated to 800-1000 ℃ for 12-17min, preferably 900 ℃ for 15 min. Glazing treatment can improve the smoothness on zirconia body 1 surface to and reduce the wearing and tearing of zirconia body 1 to adjacent jaw tooth, compare in polishing the processing to zirconia, the step is simple more convenient, and the effect is better.
And 7: the resin body 2 is piled in the embedded groove 3, the embedded groove 3 is full of the resin body 2, the end face of the resin body 2 and the surface of the zirconia body 1 are smooth and flat, and good occlusion relation with natural teeth can be guaranteed. After the resin body 2 is completely filled, the resin body 2 needs to be cured, the curing mode is photocured, and the photocuring time is controlled to be 8-12min, preferably 10 min.
The mode of photocuring is adopted, and compared with the mode of heating and curing and the mode of room temperature chemical curing, photocuring is simpler and more convenient, and easy to operate, can not cause pollution, and is more green.
And 8: and finally, checking the manufactured zirconia false tooth and equipment, and sterilizing the working environment and the zirconia false tooth for sterilization treatment.
The implementation principle of the embedded zirconia false tooth and the production process thereof in the embodiment of the application is as follows: divide into zirconia body 1 and resin body 2 with the artificial tooth, with human normal tooth interlock in-process, the occlusal surface of human normal tooth only contacts with the surface of resin body 2, and the resin material has lower hardness in comparison with the zirconium dioxide material, has reduced the harm to human natural tooth, and simultaneously, the resin is more economical, and the color and luster is very close the colour of patient's normal tooth, and it is better to wear the effect.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (8)
1. An embedded zirconia denture, which is characterized in that: the artificial tooth is characterized by comprising a zirconium oxide body (1), wherein an embedded groove (3) is formed in the end face of one end, meshed with natural teeth of a human body, of the zirconium oxide body (1), and a resin body (2) is embedded in the embedded groove (3).
2. An embedded zirconia denture according to claim 1, wherein: the area of the notch of the embedded groove (3) accounts for 2/3-3/4 of the area of the end face of the zirconia body (1).
3. A process for producing an embedded zirconia denture as claimed in any one of claims 1 to 2, wherein: comprises that
Step 1: making a gypsum model and finishing;
step 2: punching a part to be repaired in the plaster model;
and step 3: cutting the plaster model to cut off the part to be repaired;
and 4, step 4: scanning the part to be repaired, and performing repair design on the part to be repaired by using a computer;
and 5: cutting a zirconia body (1) according to a program designed by a computer, and reserving an embedded groove (3) at the top of the zirconia body (1);
step 6: glazing the surface of the zirconia body (1);
and 7: the resin body (2) is piled and solidified in the embedded groove (3);
and 8: and finally checking and sterilizing.
4. The process for producing an embedded zirconia denture according to claim 3, wherein: step 1: making a plaster model comprises: s1: stirring the gypsum; s2: applying gypsum on the impression tray and waiting for the gypsum to set; s3: removing the plaster model from the impression tray; s4: and respectively grinding the outer side and the inner side of the plaster model.
5. The process for producing an embedded zirconia denture according to claim 4, wherein: when the outer side of the gypsum model is ground in the step S3, the gypsum model can be ground by a water mill.
6. The process for producing an embedded zirconia denture according to claim 3, wherein: in the step 5: and (3) after cutting out the zirconia body (1), sintering the zirconia body (1), wherein the sintering temperature is controlled to be 1400-1600 ℃, and the sintering time is 7-9 h.
7. The process for producing an embedded zirconia denture according to claim 3, wherein: in the step 6: during glazing treatment, the surface of the zirconia body (1) is coated with glaze paste, and after the glaze paste is coated, the surface is heated, wherein the heating temperature is 800-1000 ℃, and the heating time is controlled to be 12-17 min.
8. The process for producing an embedded zirconia denture according to claim 3, wherein: in step 7: and after the resin body (2) is subjected to stacking molding, curing the resin body (2), wherein the curing mode adopts photocuring, and the photocuring time is 8-12 min.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011561656.2A CN112754704A (en) | 2020-12-25 | 2020-12-25 | Embedded zirconia false tooth and production process thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011561656.2A CN112754704A (en) | 2020-12-25 | 2020-12-25 | Embedded zirconia false tooth and production process thereof |
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| US20120107773A1 (en) * | 2010-10-27 | 2012-05-03 | Luke Lu | Fiber Abutment Material and Structure of Dental Implant |
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Application publication date: 20210507 |