阅读说明：本技术 一种氧化锆全瓷冠及其制造方法 (Zirconia all-ceramic crown and manufacturing method thereof ) 是由 易世雄 王嘉鸿 易凯详 于 2019-08-17 设计创作，主要内容包括：本发明公开了一种氧化锆全瓷冠,涉及义齿制造领域,包括氧化锆层,氧化锆层外表面依次涂覆有结合层、牙本质瓷层、牙釉质瓷层、透明瓷层和釉层,结合层远离氧化锆层的表面设置有微槽。针对现有技术存在釉面易从氧化锆材质上剥落的问题,本发明通过在结合层远离氧化锆层的表面设置有微槽,改善结合层与牙本质瓷层之间的结合强度,防止义齿表层剥落。(The invention discloses a zirconia all-ceramic crown, which relates to the field of false tooth manufacturing and comprises a zirconia layer, wherein the outer surface of the zirconia layer is sequentially coated with a bonding layer, a dentin ceramic layer, an enamel ceramic layer, a transparent ceramic layer and a glaze layer, and the surface of the bonding layer, which is far away from the zirconia layer, is provided with microgrooves. Aiming at the problem that the glaze surface is easy to peel off from the zirconia material in the prior art, the invention improves the bonding strength between the bonding layer and the dentin porcelain layer and prevents the peeling off of the surface layer of the false tooth by arranging the microgrooves on the surface of the bonding layer far away from the zirconia layer.)

1. The utility model provides a zirconia all porcelain crown, includes zirconia layer (1), zirconia layer (1) surface has coated anchor coat (2), dentin porcelain layer (3), enamel porcelain layer (4), transparent porcelain layer (5) and glaze layer (6) in proper order, its characterized in that, anchor coat (2) are kept away from the surface on zirconia layer (1) is provided with microgroove (7).

2. The zirconia all-ceramic crown and the manufacturing method thereof according to claim 1, wherein the zirconia layer (1) is provided with a groove (8) on the outer surface.

3. The zirconia all-ceramic crown according to claim 2, characterized in that said plurality of flutes (8) form criss-cross network channels.

4. The zirconia all-ceramic crown according to claim 2, characterized in that said grooves (8) are provided as punctiform grooves.

5. The method for manufacturing the zirconia all-ceramic crown is characterized by comprising the following steps of:

s1, scanning the tooth data of the patient and inputting the tooth data into a computer;

s2, drawing a denture design drawing through a CAD technology;

s3, processing the zirconia inner crown by utilizing the CAM technology according to the design drawing, and sintering;

s4, coating a zirconia bonding layer (2) on the surface of the zirconia coping;

s5, sintering the zirconia bonding layer (2), and carrying out sand blasting on the surface of the zirconia bonding layer (2);

s6, coating dentin porcelain on the surface of the zirconia bonding layer (2) and sintering;

s7, coating enamel porcelain on the surface of the dentin porcelain, and sintering;

s8, coating transparent porcelain on the surface of the enamel porcelain, and sintering;

and S9, glazing and sintering.

6. The method of claim 5, wherein in step S3, the outer surface of the zirconia coping is sandblasted to form dot-like grooves after sintering the zirconia coping.

7. The method of claim 5, wherein in step S3, after sintering, the zirconia coping is cut by a cutter to form criss-cross mesh grooves on the outer surface of the zirconia coping.

8. The method for manufacturing zirconia all-ceramic crown according to claim 6 or 7, wherein in step S4, after the zirconia bonding layer (2) is applied, the zirconia coping is subjected to a negative pressure vacuum treatment.

9. The method for manufacturing zirconia all-ceramic crown according to claim 5, wherein in step S5, the surface of the zirconia bonding layer (2) is sand blasted and then treated by high pressure and high temperature steam spraying.

10. The method for manufacturing a zirconia all-ceramic crown according to claim 5 or 9, wherein in step S6, the surface of the zirconia bonding layer (2) is coated with dentin porcelain, and then is subjected to a vacuum treatment and sintering.

Technical Field

The invention relates to the field of false tooth manufacturing, in particular to a zirconia all-ceramic crown and a manufacturing method thereof.

Background

In modern society, people pay more and more attention to oral health, but in modern society, due to dietary habits, bacterial infection and other reasons, the tooth problems such as tooth decay and tooth decay of modern people often occur, and in order to solve the problems, patients generally choose to inlay false teeth.

The existing high-simulation artificial tooth structure made of full zirconia, such as Chinese patent with patent publication No. CN106073920A, comprises a zirconia layer and a glaze surface, wherein the light transmittance of the zirconia layer is gradually increased from a tooth root to a tangent plane, the glaze surface is thermally fixed on the surface of the zirconia layer, and the glaze surface is provided with a natural tooth-like pigment.

The different material layer structures of above-mentioned artificial tooth are complicated, and the patient inlays the back, and at the in-process of daily chew food, because of the adhesive force is not high between the different materials of artificial tooth gradually, will slowly take off the material and peel off between the different materials of artificial tooth, lead to often needing to restore the artificial tooth, but the artificial tooth after the restoration also can not guarantee for a long time durable, increases patient and protects tooth cost and work load, seriously influences the whole pleasing to the eye degree of patient's tooth moreover.

Disclosure of Invention

Aiming at the problem that the glaze surface is easy to peel from the zirconia material in the prior art, the invention aims to provide a zirconia full-ceramic crown and a manufacturing method thereof, and the zirconia full-ceramic crown has the advantage of preventing the peeling of the surface layer of the denture.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a zirconia all porcelain crown, includes the zirconia layer, zirconia layer surface has coated anchor coat, dentin porcelain layer, enamel porcelain layer, transparent porcelain layer and glaze layer in proper order, the anchor coat is kept away from the surface on zirconia layer is provided with the microgroove.

According to the technical scheme, the microgrooves are formed in the surface of the bonding layer, and the contact surface between the bonding layer and the dentin ceramic layer is increased, so that the strength of the dentin ceramic layer fixed on the zirconia layer is improved, and the surface layer of the false tooth is not easy to peel off.

Furthermore, the outer surface of the zirconia layer is provided with a groove.

Through above-mentioned technical scheme, set up the recess and increase the contact surface between anchor coat and the zirconia layer, improve the joint strength between anchor coat and the zirconia layer.

Further, a plurality of the grooves form criss-cross net-shaped grooves.

Through above-mentioned technical scheme, set up the recess into netted groove, the commonality is strong, is applicable to the anchor coat of multiple type material.

Further, the grooves are provided as punctiform grooves.

Through the technical scheme, the point-shaped groove is convenient to process, but the point-shaped groove is only suitable for a bonding layer with fine material particles due to small aperture.

A method for manufacturing a zirconia all-ceramic crown comprises the following steps:

s1, scanning the tooth data of the patient and inputting the tooth data into a computer;

s2, drawing a denture design drawing through a CAD technology;

s3, processing the zirconia inner crown by utilizing the CAM technology according to the design drawing, and sintering;

s4, coating a zirconia bonding layer on the surface of the zirconia coping;

s5, sintering the zirconia bonding layer, and carrying out sand blasting on the surface of the zirconia bonding layer;

s6, coating dentin porcelain on the surface of the zirconia bonding layer, and sintering;

s7, coating enamel porcelain on the surface of the dentin porcelain, and sintering;

s8, coating transparent porcelain on the surface of the enamel porcelain, and sintering;

and S9, glazing and sintering.

Through above-mentioned technical scheme, the sandblast is carried out on zirconia binding course surface, forms the microgroove, increases the contact surface between binding course and the dentin porcelain layer to improve the intensity on zirconia layer is fixed on dentin porcelain layer, ensure that the artificial tooth top layer is difficult for peeling off.

Further, in step S3, after the zirconia coping is sintered, the outer surface of the zirconia coping is subjected to a blasting treatment to form a dot-shaped groove.

Through the technical scheme, the point-shaped groove is convenient to process, but the point-shaped groove is only suitable for a bonding layer with fine material particles due to small aperture.

Further, in step S3, after the zirconia coping is sintered, the outer surface of the zirconia coping is cut by using a cutter to form criss-cross mesh grooves.

Through the technical scheme, the net-shaped groove is formed, the groove diameter is large, the universality is strong, and the binding layer is suitable for binding layers made of multi-purpose materials.

Further, in step S4, after the zirconia bonding layer is coated, the zirconia coping is subjected to a negative pressure vacuum process.

Through the technical scheme, the vacuumizing treatment is used for discharging air in the dotted groove or the reticular groove, so that the zirconium oxide bonding layer can be conveniently and fully filled into the dotted groove or the reticular groove, and the connection strength between the zirconium oxide bonding layer and the zirconium oxide inner crown is improved.

Further, in step S5, the surface of the zirconia bonding layer is subjected to sand blasting and then treated by high pressure and high temperature steam blasting.

Through the technical scheme, the sand grains attached to the zirconia bonding layer are removed by adopting high-pressure high-temperature steam spraying treatment.

Further, in step S6, the dentin porcelain is coated on the surface of the zirconia bond coat, and then the zirconia bond coat is subjected to vacuum-pumping treatment under negative pressure and then sintered.

Through above-mentioned technical scheme, ensure that dentin porcelain fully contacts with the zirconia anchor coat, improve the joint strength between dentin porcelain and the zirconia anchor coat.

Compared with the prior art, the invention has the beneficial effects that:

(1) the micro-groove is arranged on the surface of the bonding layer, so that the contact surface between the bonding layer and the dentin ceramic layer is increased, the strength of the dentin ceramic layer fixed on the zirconia layer is improved, and the surface layer of the false tooth is not easy to peel off;

(2) furthermore, the air in the point-shaped grooves or the reticular grooves is discharged through vacuum pumping treatment, so that the zirconium oxide bonding layer is conveniently and fully filled into the point-shaped grooves or the reticular grooves, and the connection strength between the zirconium oxide bonding layer and the zirconium oxide inner crown is improved;

(3) furthermore, the outer surface of the zirconia bonding layer is treated by adopting high-pressure high-temperature steam spraying, sand grains attached to the zirconia bonding layer are removed, and the formation of microgrooves on the outer surface of the zirconia bonding layer is ensured.

Drawings

FIG. 1 is a schematic structural diagram of the first embodiment;

fig. 2 is a partially enlarged view of a portion a in fig. 1.

Reference numerals: 1. a zirconium oxide layer; 2. a bonding layer; 3. a dentin ceramic layer; 4. enamel porcelain layer; 5. a transparent ceramic layer; 6. a glaze layer; 7. micro-grooves; 8. and (4) a groove.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the following provides a detailed description of the present invention with reference to examples and drawings, but the embodiments of the present invention are not limited thereto.