TWI558381B - All - ceramic crown crown and its preparation method - Google Patents

Description

All-ceramic crown crown and its preparation method

This creation is about an all-ceramic crown crown, especially a full-ceramic crown-shaped crown that can effectively shield the color of the abutment or the color of the dental column; this creation is also related to a method of making a full-ceramic crown crown.

With age or accidents, it may cause damage to the teeth, leading to visual imperfections or problems with occlusion and chewing. Physicians usually recommend installing dentures, which will be unusable or damaged. If the teeth are worn out, and the crowns produced separately can be set, or the unacceptable or damaged teeth can be removed, the artificial implants can be performed, and the separately prepared crowns can be placed on the implants.

As shown in FIG. 3, it is a conventional all-ceramic crown type crown 9 which is made of zirconium dioxide as an inner crown 90, and a porcelain powder 91 is stacked and bonded to the inner crown. The existing all-ceramic crown crown is available on the surface. Since the inner crown made of zirconium dioxide can reach 1200 MPa and does not cause the gums to become black, the existing all-ceramic crown has both practicality and aesthetics. Therefore, it is widely used.

However, not all people are suitable to use the existing all-ceramic crown crown, as shown in Figure 3 and Figure 5. If the nerve of the user's abutment has been removed, the abutment tooth The color is easy to turn black, and its color will be revealed through the existing all-ceramic crown crown, making the teeth The appearance looks black, which will greatly affect the look and feel; as shown in Figure 6, if the user uses a metal column, the color of the column will also be revealed from the existing all-ceramic crown. Seriously affect the perception.

Therefore, for the user of the above situation, the shielding rate of the existing all-ceramic crown crown still has room for improvement, so as to avoid the color of the abutment tooth or the metal tooth column and affect the visual perception.

In order to improve or reduce the existing all-ceramic crown crown, it is unable to effectively shield the abutment teeth or the color of the metal dental column to affect the visual perception.

The present invention provides an all-ceramic crown crown comprising: a zirconium dioxide inner crown comprising a surface and an inner surface; a gold film layer located on the inner surface of the inner zirconium dioxide; A layer of porcelain powder, the layer of porcelain powder being located on the surface of the crown of the zirconium dioxide.

The creation of the gold film layer effectively shields the abutment teeth or the color of the metal dental column to make the visual appearance more beautiful; further, since the gold film layer can increase the light irradiation on the all-ceramic crown crown The rear reflection also increases the brightness and saturation of the all-ceramic crown crown, and the color system is more distinct.

Preferably, the shortest distance from the surface to the inner surface of the zirconia inner crown is at least 0.5 mm or more to ensure that the thickness of the zirconia inner crown is sufficient to withstand the occlusion, chewing and the like of daily life.

The present invention further provides a method for preparing a all-ceramic crown crown, comprising: a complete zirconia inner crown having a surface and an inner surface.

Sandblasting the inner surface of the inner surface of the zirconia inner crown can obtain a crown of sandblasted inner; The inner surface of the sandblasted inner crown is coated with a golden mud to form a gold thin film layer and sintered to obtain a sintered inner crown; cooling the sintered inner crown to obtain a gold inner crown; the ceramic powder stack is combined The all-ceramic crown crown is available on the surface of the gold crown.

Preferably, the inner surface of the zirconia inner blasting system is blasted with alumina, and the inner surface of the zirconia inner crown is roughened by sand blasting, thereby promoting the inner surface of the zirconia crown. The combination of the inner surface and the golden mud.

Preferably, the sintering temperature is between 920 and 1000 degrees Celsius.

Preferably, the sintering time is 40 to 60 minutes.

Preferably, the sintered inner crown is cooled to room temperature, about 30 to 50 degrees Celsius.

Preferably, the sintered inner crown is cooled for at least 20 minutes.

Preferably, the surface of the gold inner crown is bonded to the surface of the gold inner crown by first dividing the surface of the gold inner crown into seven regions, and matching the surface color of the adjacent teeth as a reference, and stacking different amounts in different regions. Porcelain powder. In order to adjust the amount of stacked porcelain powder in different areas of the surface of the adjacent teeth, an image device such as a camera can be used to record the surface color of the adjacent teeth.

1‧‧‧All-ceramic crown crown

10‧‧‧Zirconium dioxide inner crown

11‧‧‧ surface

12‧‧‧ inside

20‧‧‧ gold film layer

30‧‧‧ porcelain powder layer

9‧‧‧All-ceramic crown crown

90‧‧‧ inner crown

21‧‧‧ porcelain powder

Figure 1 is a schematic diagram of the surface of the gold inner crown divided into seven regions.

Figure 2 is a cross-sectional view of the all-ceramic crown crown of the present invention.

3 is a cross-sectional view of a conventional all-ceramic crown crown.

Figure 1 is a photograph of a sandblasted inner crown coated with gold mud.

Figure 2 is a photograph of the surface of the gold inner crown divided into seven regions.

Figure 3 is a photograph of the abutment teeth without the crown attached.

Figure 4 is a photograph of the all-ceramic crown crown of the present invention.

Figure 5 is a photograph of a conventional all-ceramic crown crown.

Figure 6 is a photograph of a dental column without metal.

The present invention provides a method for producing a all-ceramic crown crown comprising: a complete zirconia inner crown having a surface and an inner surface.

A sandblasted inner crown is obtained by sand blasting the inner surface of the inner cap of the zirconia with a blasting apparatus using aluminum oxide.

As shown in FIG. 1, the inner surface of the sandblasted inner crown is coated with a golden mud to form a gold film layer, and the inner crown is placed in a porcelain furnace for sintering at 920 to 1000 degrees Celsius for 18 to 20 minutes. A sintered inner crown is obtained, wherein the golden mud is mixed with a gold powder and a thinner liquid, and the thickness of the gold thin film layer depends on the state of the abutment or the dental column of the user.

The sintered inner crown was taken out and cooled at room temperature for at least 20 minutes to obtain a gold inner crown.

The porcelain powder stack is bonded to the surface of the gold inner crown to obtain the all-ceramic crown crown. In a preferred embodiment, as shown in FIG. 1 and FIG. 2 The surface of the gold inner crown is firstly divided into seven regions, and the surface color of the adjacent teeth is recorded as a reference, and different amounts are stacked in different regions. Porcelain powder makes the all-ceramic crown of the crown closer to the color of natural teeth, and can present the interproximal space and the shadow of the cervical.

As shown in FIG. 2, the present invention further provides an all-ceramic crown crown 1 comprising: a zirconium dioxide inner crown 10 comprising a surface 11 and an inner surface 12, the shortest of the surface 11 to the inner surface 12 The distance is at least 0.5 mm or more.

A gold film layer 20 is located on the inner face 12 of the inner cap 10 of the zirconium dioxide.

A porcelain powder layer 30 is located on the surface 11 of the zirconia inner crown 10.

As shown in FIG. 3 and FIG. 4, when the all-ceramic crown crown of the present invention is installed on the blackened support tooth, the color of the support tooth does not penetrate. The creation can effectively shield the color of the abutment teeth, and is visually close to the natural teeth, and effectively enhances the visual perception relative to FIG.

The above description is only a preferred example of the present invention, and is not intended to limit the present invention in any way. Although the present invention has been disclosed above in the preferred embodiment, it is not intended to limit the present invention, and is generally in the art. Those skilled in the art, while departing from the technical scope of the present invention, may make some modifications or modifications to equivalent embodiments by using the technical contents disclosed above, but the content of the technical solution without departing from the present invention is based on The technical essence of the present invention makes any simple modification, equivalent change and modification to the above embodiments, and still belongs to the scope of the technical solution of the present invention.

1‧‧‧All-ceramic crown crown

10‧‧‧Zirconium dioxide inner crown

11‧‧‧ surface

12‧‧‧ inside

20‧‧‧ gold film layer

30‧‧‧ porcelain powder layer

Claims (9)

An all-ceramic crown type crown comprising: a zirconium dioxide inner crown comprising a surface and an inner surface; a gold film layer located on the inner surface of the inner surface of the zirconium dioxide; and a porcelain powder layer The porcelain powder layer is located on the surface of the crown of the zirconium dioxide. According to the all-ceramic crown type crown of claim 1, the shortest distance from the surface to the inner surface of the zirconia inner crown is at least 0.5 mm or more. The invention relates to a method for preparing an all-ceramic crown crown, comprising: a complete zirconia inner crown having a surface and an inner surface; sandblasting the inner surface of the inner surface of the zirconia to obtain a sandblasted inner crown; The inner surface of the crown of the sandblasting is coated with a gold mud to form a gold film layer and sintered to obtain a sintered inner crown; the sintered inner crown is cooled to obtain a gold inner crown; the porcelain powder stack is combined with the gold The all-ceramic crown crown is obtained from the surface of the inner crown. According to the method for preparing an all-ceramic crown crown according to claim 3, the step of sand blasting the inner surface of the zirconia inner crown is performed by alumina blasting. According to the method of the all-ceramic crown type crown described in claim 3, the sintering temperature is between 920 and 1000 degrees Celsius. According to the method of the all-ceramic crown type crown described in claim 5, the sintering time is 40 to 60 minutes. According to the method of claim 3, the step of cooling the sintered inner crown is cooled to room temperature. Cooling the process according to the method of all-ceramic crown crown described in claim 8 The crown within the sintering is cooled for at least 20 minutes. According to the method for manufacturing an all-ceramic crown crown according to any one of claims 3 to 8, the step of bonding the porcelain powder to the surface of the gold inner crown is first to divide the surface of the gold inner crown into seven regions. And with the surface color of the adjacent teeth as a reference, stack different amounts of porcelain powder in different areas.