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Dental glaze composition, dental glaze forming method and denture prosthesis
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A composition and restoration technology, applied in the field of dental restoration, can solve the problems of high sintering temperature, adverse health effects, restricted use, etc., and achieve the effects of improving quality, uniform glaze hanging, and fast heating rate
Active Publication Date: 2021-07-23
SHENZHEN XIANGTONG PHOTOELECTRIC TECH
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[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, tooth enamel compositions in the prior art include toxic components such as barium oxide and lead oxide, which will have adverse effects on health
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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% K 2 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 polyurethaneball mill tank for ball milling. The corresponding parameters of ball milling are: rotating speed 340r / min, ball milling time 2h...
Embodiment 2～14
[0082] The difference of embodiment 2~14 and embodiment 1 is only that component content is different, as shown in table 1, each parameter in preparation process and preparation process is all identical with embodiment 1. N in Table 1 represents the molar weight, for example 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 is only 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 glaze composition, a tooth glaze forming method and a denture prosthesis. The tooth glaze composition comprises, by mass, 53-65% of SiO2, 6-15% of B2O3, 8-12% of Na2O, 6-8% of K2O, 1-3% of Li2O, 2-5% of an alkaline earth metaloxide, 5.5-11% of Al2O3 and 0.5-2% of ZrO2, and the alkaline earth metaloxide is CaO or a mixture of CaO and SrO. The tooth glaze composition disclosed by the invention has a relatively low sintering temperature, and the application range of the tooth glaze composition is widened, so that the tooth glaze composition not only can be applied to restoration matrixes of zirconiumoxide, metal and the like with high melting temperature, but also can be applied to restoration matrixes of glass ceramics, cast porcelain, baked porcelain and the like with low melting temperature.
Description
technical field [0001] The invention relates to the technical field of tooth restoration, more specifically, to a tooth enamel 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, because the outer surface of the restoration matrix is rough, bacteria are easy to adhere to and form plaques, which will have adverse effects on the restoration matrix and surrounding hard and soft tissues. Therefore, it is necessary to form a smooth enamel surface 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 auxil...
Claims
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