WO2017185474A1

WO2017185474A1 - Staining process for zirconia dental prosthesis

Info

Publication number: WO2017185474A1
Application number: PCT/CN2016/084135
Authority: WO
Inventors: 马勤
Original assignee: 成都贝施美医疗设备有限公司; 成都贝施美生物科技有限公司
Priority date: 2016-04-29
Filing date: 2016-05-31
Publication date: 2017-11-02
Also published as: CN105924162A

Abstract

A staining process for a zirconia dental prosthesis, comprising the steps of: S1, mixing: mixing zirconia ceramic powders and a colorant in a weight ratio of 100 : 1-5 so as to prepare a colored zirconia porcelain block; S2, pretreatment: carrying out a cutting process so as to obtain a dental prosthetic material, cleaning up residual ceramic powders on the surface of the pre-sintered zirconia dental prosthesis and keeping the zirconia dental prosthesis dry; S3, soaking: soaking the pretreated dental prosthesis in a staining solution for 10 to 15 min; and S4, sintering: subjecting the soaked dental prosthesis to a stepwise sintering. The staining process is simple to operate and has a uniform staining effect. The staining process is simple to operate and has a uniform staining effect.

Description

Description: A dyeing process for zirconia dental restorations

[0001] The invention belongs to the technical field of ceramic preparation, and particularly relates to a dyeing process of a zirconia dental restoration.

Background technique

[0002] Uncolored dental zirconia is mostly white to ivory, and has a certain translucency. Although it can easily simulate the natural tooth color, it does not meet the clinical requirements for the color of the restoration, and the surface often needs to be opaque. This will lose a part of the transparency of the material, adjust the color of the zirconia itself to match the color, brightness and saturation of the tooth to be repaired, and obtain a good texture, which can save the preparation space of the clinical abutment. Internal dyeing of the dental zirconia restoration can make the zirconia base crown itself similar to the natural dentin color, reduce the thickness of the veneer in the manufacturing process of the restoration or completely eliminate the use of the veneer porcelain. The effect, the same can also reduce the amount of preparation, is more conducive to retain more tooth tissue.

[0003] Chinese Patent No. CN102674888A discloses a coloring solution and a method for using a dental zirconia ceramic article, including a soaking, drying, and sintering step, wherein the immersion and drying methods are mentioned, but the description is not specific. The operation is not standardized, which increases the difficulty of dyeing operation, resulting in uneven dyeing and unattractive

[0004] Therefore, a dyeing process which is simple in operation and dyed on the basis of a colored zirconia dental restoration can be dyed uniformly, the thickness of the veneer porcelain can be reduced, and the aesthetic effect can be improved.

technical problem

[0005] It is an object of the present invention to overcome the shortcomings of the prior art and to provide a solution to the problem of dyeing of zirconia dental restorations.

Technical solution

The object of the present invention is achieved by the following technical solutions: A dyeing process for a zirconia dental restoration comprising the following steps:

[0007] S1. Mixing: mixing colorant and zirconia ceramic powder in a weight ratio of 100:1~5 to prepare colored oxygen Zirconium ceramic block;

[0008] 52. Pretreatment: performing a cutting process to obtain a dental restoration, and cleaning the ceramic powder remaining on the surface of the calcined zirconia dental restoration and keeping it dry;

[0009] 53. Soaking: the pre-treated dental prosthesis is soaked in the dyeing solution for 10~15min;

[0010] S4.

Sintering: The soaked dental restoration is subjected to segmental sintering, the temperature of the first stage of the segmentation sintering is 1000 to 1200 ° C, and the sintering time is 20 to 30 min; the temperature of the second stage of the segmentation sintering is 1500 to 1600 °C, sintering time is 1~2h.

[0011] Further, the colorant is a combination of one or more of cerium oxide, cerium oxide, cobalt oxide, iron oxide, manganese oxide, cerium oxide or cerium oxide.

[0012] Further, in the step S2, the drying is performed by oven drying, the drying temperature is 30 to 60 ° C, and the dry crucible is 45 to 60 min.

[0013] Further, the dyeing liquid BSM16 color dyeing liquid or BSM 26 color dyeing liquid.

[0014] The BSM16 staining solution in the present invention specifically includes BSM Al/L, Aidite (BSM)

A2/L, Aidite (BSM) A3/L, Aidite (BSM) A3.5/L, Aidite (BSM)

A4/L, Aidite (BSM) Bl/L, Aidite (BSM) B2/L, Aidite (BSM)

B3/L, Aidite (BSM) B4/L, Aidite (BSM) Cl/L, Aidite (BSM)

C2/L, Aidite (BSM) C3/L, Aidite (BSM) C4/L, Aidite (BSM)

D2/L, Aidite (BSM) D3/L, Aidite (BSM) D4/L.

[0015] In the present invention, the BSM26 color dyeing solution comprises BSM1M1.

1M2, 2U.5, 2L2.5, 2M1, 2M2, 2M3, 2R1.5, 2R2.5, 3L1.5, 3L2.5, 3M1

3M2, 3M3, 3R1.5, 3R2.5, 4U.5, 4L2.5, 4M1, 4M2, 4M3, 4R1.5, 4R2.5,

5M1, 5M2, 5M3.

Advantageous effects of the invention

Beneficial effect

[0016] The present invention has the following advantages: The present invention combines a colorant and a zirconia ceramic powder to perform soaking and sintering, and the obtained zirconia dental restoration is uniformly dyed and beautiful, and the operation method of the present invention is simple and simple. , the dyeing effect is good. Embodiments of the invention

[0017] The present invention will be further described below in conjunction with the embodiments, and the scope of the present invention is not limited to the following.

[0018] Example 1: A dyeing process for a zirconia dental restoration comprising the following steps:

[0019] S1 mixing: mixing the colorant cerium oxide and zirconia ceramic powder in a weight ratio of 100:1 to prepare a colored zirconia ceramic block;

[0020] S2. Pretreatment: performing a cutting process to obtain a dental restoration, cleaning the ceramic powder remaining on the surface of the calcined zirconia dental restoration, and keeping it dry; the drying is dried by an oven, the drying temperature 30 ° C, dry daytime is 45 min;

[0021] S3. Soaking: the pre-treated dental prosthesis is soaked in the dyeing solution for lOmin; the dyeing liquid is BSM16 color dyeing liquid;

[0022] S4.

Sintering: the soaked dental restoration is subjected to segmental sintering, and the temperature of the first segment of the segmented sintering is iooo°c

The sintering time is 20 min; the second stage of the section sintering is 1500 ° C, and the sintering time is lh.

[0023] Example 2: A dyeing process for a zirconia dental restoration comprising the following steps:

[0024] S1 mixing: mixing the colorant and zirconia ceramic powder in a weight ratio of 100:5, to prepare a colored zirconia ceramic block; the coloring agent is cerium oxide;

[0025] S2. Pretreatment: performing a cutting process to obtain a dental restoration, cleaning the ceramic powder remaining on the surface of the calcined zirconia dental restoration, and keeping it dry; the drying is dried by an oven, the drying temperature 60 ° C, dry daytime is 60 min;

[0026] S3. Soaking: the pre-treated dental restoration is soaked in the dyeing solution for 15 minutes; the dyeing liquid is BSM26 coloring solution;

[0027] S4.

Sintering: The soaked dental restoration is subjected to segmental sintering. The temperature of the first stage of the segmentation sintering is 1200 ° C, and the sintering time is 30 min. The temperature of the second section of the segmentation sintering is 1600 ° C. It is 2h.

[0028] Example 3: A dyeing process for a zirconia dental restoration comprising the following steps:

[0029] S1. Mixing: mixing the colorant with the zirconia ceramic powder at a weight ratio of 100:1.5 to prepare colored oxidation a zirconium ceramic block; the coloring agent is cobalt oxide;

[0030] S2. Pretreatment: performing a cutting process to obtain a dental restoration, cleaning the ceramic powder remaining on the surface of the calcined zirconia dental restoration, and keeping it dry; the drying is dried by an oven, the drying temperature 34 ° C, dry daytime is 48 min;

[0031] S3. Soaking: the pre-treated dental restoration is soaked in the dyeing solution for 12 minutes; the dyeing liquid is BSM26 coloring solution;

[0032] S4.

Sintering: The soaked dental restoration is subjected to segmental sintering, and the temperature of the first stage of the segmental sintering is 1050 ° C

The sintering time is 22 min; the second stage of the segmentation sintering is 1520 ° C, and the sintering time is 1.2 h.

Example 4: A dyeing process for a zirconia dental restoration comprising the following steps:

[0034] S1 mixing: mixing the colorant and zirconia ceramic powder in a weight ratio of 100:2, to prepare a colored zirconia ceramic block; the coloring agent is iron oxide;

[0035] S2. Pretreatment: performing a cutting process to obtain a dental restoration, cleaning the ceramic powder remaining on the surface of the calcined zirconia dental restoration, and keeping it dry; the drying is dried by an oven, the drying temperature 38 ° C, the dry day is 52 min;

[0036] S3. Soaking: the pre-treated dental restoration is soaked in the dyeing solution for 13 minutes; the dyeing liquid is BSM26 coloring solution;

[0037] S4.

Sintering: The soaked dental restoration is subjected to segmental sintering, and the temperature of the first stage of the segmental sintering is 1080 ° C

The sintering time is 24 min; the second stage of the segmentation sintering is 1550 ° C, and the sintering time is 1.5 h.

[0038] Example 5: A dyeing process for a zirconia dental restoration comprising the following steps:

[0039] S1 mixing: mixing the colorant and zirconia ceramic powder in a weight ratio of 100:3, to prepare a colored zirconia ceramic block; the coloring agent is manganese oxide;

[0040] S2. Pretreatment: performing a cutting process to obtain a dental restoration, cleaning the ceramic powder remaining on the surface of the calcined zirconia dental restoration, and keeping it dry; the drying is dried by an oven, the drying temperature 45 ° C, dry crucible is 55 min;

[0041] S3. Soaking: the pre-treated dental restoration is immersed in the dyeing solution for 14 minutes; the staining solution is BSM16 coloring solution; [0042] S4.

Sintering: The soaked dental restoration is subjected to segmental sintering, and the temperature of the first stage of the segmental sintering is iioo°c

The sintering time is 26 min; the second stage of the segmentation sintering is 1575 ° C, and the sintering time is 1.8 h.

[0043] Example 6: A dyeing process for a zirconia dental restoration comprising the following steps:

[0044] S1 mixing: mixing the colorant and zirconia ceramic powder in a weight ratio of 100:3.8, preparing a colored zirconia ceramic block; the coloring agent is cerium oxide;

[0045] S2. Pretreatment: performing a cutting process to obtain a dental restoration, cleaning the ceramic powder remaining on the surface of the calcined zirconia dental restoration, and keeping it dry; the drying is dried by an oven, the drying temperature 50 ° C, dry daytime is 58 min;

[0046] S3. Soaking: the pre-treated dental restoration is soaked in the dyeing solution for 15 minutes; the dyeing liquid is BSM26 coloring solution;

[0047] S4.

Sintering: The soaked dental restoration is subjected to segmental sintering, and the temperature of the first stage of the segmental sintering is 1130 ° C

The sintering time is 28 min; the second stage of the segmentation sintering is 1580 ° C, and the sintering time is lh.

[0048] Example 7: A dyeing process for a zirconia dental restoration comprising the following steps:

[0049] S1 mixing: mixing the colorant and zirconia ceramic powder in a weight ratio of 100:4.3, preparing a colored zirconia ceramic block; the coloring agent is cerium oxide;

[0050] S2. Pretreatment: performing a cutting process to obtain a dental restoration, cleaning the ceramic powder remaining on the surface of the calcined zirconia dental restoration, and keeping it dry; the drying is dried by an oven, the drying temperature At 54 ° C, the dry day is 60 min;

[0051] S3. Soaking: the pre-treated dental prosthesis is soaked in the dyeing solution for l lmin; the dyeing liquid is BSM26 color dyeing liquid;

[0052] S4.

Sintering: The soaked dental restoration is subjected to segmental sintering. The temperature of the first stage of the segmentation sintering is 1175 ° C, and the sintering time is 22 min. The temperature of the second stage of the segmentation sintering is 1510 ° C. It is 1.5h.

Claims

Claim

[Claim 1] A dyeing process for a zirconia dental restoration, characterized in that it comprises the following steps:

51. mixing: mixing the colorant and the zirconia ceramic powder in a weight ratio of 100:1 to 5 to prepare a colored zirconia ceramic block;

52. Pre-treatment: The cutting process is performed to obtain a dental restoration, and the ceramic powder remaining on the surface of the calcined zirconia dental restoration is cleaned and kept dry;

S3.

Soak: Soak the pre-treated dental restoration in the staining solution for 10~15min

S4. Sintering: The soaked dental restoration is subjected to segmental sintering, the temperature of the first stage of the segmentation sintering is 1000 to 1200 ° C, the sintering time is 20 to 30 min; the temperature of the second section of the segmentation sintering is 1500 ~1600 ° C, sintering 吋 between l ~ 2h.

[Claim 2] A dyeing process for a zirconia dental restoration according to claim 1, wherein

The colorant is a combination of one or more of cerium oxide, cerium oxide, cobalt oxide, iron oxide, manganese oxide, cerium oxide or cerium oxide.

[Claim 3] A dyeing process for a zirconia dental restoration according to claim 1, wherein

The drying in the step S2 is carried out by oven drying, the drying temperature is 30 to 60 ° C, and the dry crucible is 45 to 60 min.

[Claim 4] A dyeing process for a zirconia dental restoration according to claim 1, wherein

The staining solution is a BSM16 coloring solution or a BSM26 coloring solution.