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Tooth enamel composition, method for forming tooth enamel, and denture restoration

A composition and restoration technology, applied in the field of dental restoration, can solve the problems of limited use, high sintering temperature, adverse health effects, etc., and achieve the effects of improving quality, fast heating rate, and uniform glaze hanging

Active Publication Date: 2022-04-19
SHENZHEN XIANGTONG PHOTOELECTRIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The formation method of the enamel surface is to coat a layer of enamel surface composition wet material on the surface of the prosthetic body, then sinter at high temperature, and form a smooth enamel surface after cooling down. The enamel surface composition in the prior art The high sintering temperature limits its use on low-temperature prosthetic substrates
In addition, the tooth enamel composition in the prior art includes toxic components such as barium oxide and lead oxide, which will have adverse effects on health

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Tooth enamel composition, comprising the following components in mass percentage:

[0064] 60.4% SiO 2 , 10% B 2 o 3 , 0.5% ZrO 2 , 9.0% Na 2 O, 7.0% K2 O, 1.4% Li 2 O, 2.3% CaO, 9.3% Al 2 o 3 .

[0065] Among them, Na 2 O and K 2 The molar ratio of O is 2.0;

[0066] K 2 O and Li 2 The molar ratio of O is 1.5;

[0067] Na 2 O, K 2 O and Li 2 The three total mass percentages of O are 17.5%;

[0068] SiO 2 and Al 2 o 3 The molar ratio of is 11.0;

[0069] SiO 2 The molar ratio to CaO is 24.2.

[0070] The preparation process is:

[0071] 1) Ingredients: Take Na according to the above ratio 2 CO 3 、K 2 CO 3 , ZrO 2 , Li 2 CO 3 , CaCO 3 , SiO 2 、Al 2 o 3 and B 2 o 3 to mix,

[0072] 2) Ball milling: Using the planetary ball milling process, put the mixture raw material obtained in step 1) into a polyurethane ball mill tank for ball milling. The corresponding ball milling parameters: speed 340 r / min, ball milling time 2h, solvent is alco...

Embodiment 2~14

[0082] The only difference between Examples 2-14 and Example 1 is that the component contents are different. As shown in Table 1, the preparation process and each parameter in the preparation process are the same as those of Example 1. N in Table 1 represents the molar weight, such as N (Na 2 O) stands for Na 2 The molar weight of O, the % in Table 1 represents the mass percent content.

Embodiment 15~18

[0084] The difference between Examples 15-18 and Example 1 lies in the preparation of the solvent in step 7) of the preparation process, and the rest are the same as in Example 1. The solvent data are shown in Table 2, and the % in Table 2 represents the mass percentage.

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Abstract

The invention discloses a tooth enamel composition, a method for forming the tooth enamel and a denture restoration. The tooth enamel composition comprises the following components in mass percentage: 53% to 65% of SiO 2 , 6% to 15% of B 2 o 3 , 8% ~ 12% Na 2 O, 6% ~ 8% K 2 O, 1% to 3% Li 2 O, 2% to 5% of alkaline earth metal oxides, 5.5% to 11% of Al 2 o 3 and 0.5% to 2% of ZrO 2 , wherein the alkaline earth metal oxide is CaO or a mixture of CaO and SrO. The enamel surface composition of the present invention has a lower sintering temperature, which broadens the application range of the enamel surface composition, so that the enamel surface composition can be applied to restoration substrates such as zirconia and metals with high melting temperatures. It can also be applied outside the matrix of restorations such as glass ceramics, cast porcelain, and porcelain with low melting temperature.

Description

technical field [0001] The invention relates to the technical field of tooth restoration, more specifically, to a tooth enamel surface composition, a method for forming a tooth enamel surface and a denture restoration. Background technique [0002] A denture restoration usually consists of a restoration matrix and an enamel surface that coats the restoration matrix. [0003] On the one hand, due to the rough outer surface of the restoration matrix, bacteria are easy to adhere to and form plaque, which will have adverse effects on the restoration matrix and surrounding hard and soft tissues. Therefore, a smooth enamel surface should be formed on the outer surface of the restoration matrix. [0004] On the other hand, with the improvement of patients' aesthetic requirements, the color of the restoration matrix with a single color is difficult to meet the clinical needs. Forming the enamel surface on the outer surface of the restoration matrix can also be used as an auxiliary c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C8/02C03C8/16C03C17/04A61K6/831
CPCC03C8/02C03C8/16C03C17/04C03C17/001A61K6/831C03C2205/06C03C2218/11
Inventor 熊建都谭莉冯军何文礼尹长军
Owner SHENZHEN XIANGTONG PHOTOELECTRIC TECH