Dental prosthetic material and preparation method thereof

A restoration material and a dental technology, applied in the field of dental restoration materials and their preparation, can solve the problems of partial reduction of natural enamel, enlargement of caries, mechanical properties failing to reach the strength of enamel, and the like, achieving mild conditions, cheap raw materials, and simple process Effect

Active Publication Date: 2013-09-25
杭州蝾螈科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of this method are: 1. The physical and chemical properties of resins, alloys, ceramics, etc. are different from those of the teeth themselves, and the biocompatibility is not good, and the mechanical properties cannot reach the strength of the enamel itself; 2. The steps of mechanical treatment will remove some The part of healthy enamel that is not infected, but instead enlarges the cavity and reduces the part of natural enamel

Method used

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  • Dental prosthetic material and preparation method thereof
  • Dental prosthetic material and preparation method thereof
  • Dental prosthetic material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Embodiment 1, preparation dental restorative material

[0035] Take isolated human molars or wisdom teeth, use the side of the saw blade of a low-speed diamond cutter to gently grind the enamel surface, and cut off the enamel part. Treat the above enamel with 85% phosphoric acid aqueous solution by mass for 30 seconds, rinse off the residual acid solution with deionized water, and set aside.

[0036] Weigh 236.00g Ca(NO 3 ) 2 4H 2 O was added about 800mL deionized water, and the 1000mL volumetric flask was constant to obtain Ca(NO 3 ) 2 solution. Weigh 0.30g agarose (Agarose), add 8mL Ca(NO 3 ) 2 solution, and 7.2mL of water was added, stirred with a glass rod and heated to boiling to obtain Agarose-Ca solution, the pH value of which was 7.0, wherein the ratio of agarose to calcium nitrate was 1g: 0.027mol, the mass percentage of agarose The content is 1.97%, and the molar concentration of calcium nitrate is 0.526mol / L.

[0037] Weigh 136.00g KH 2 PO 4 and 31...

Embodiment 2

[0048] Embodiment 2, preparation dental restorative material

[0049] Weigh 236.00g Ca(NO 3 ) 2 4H 2 O was added about 800mL deionized water, and the 1000mL volumetric flask was constant to obtain Ca(NO 3 ) 2 solution. Weigh 0.20g agarose (Agarose), add 6mL Ca(NO 3 ) 2 solution, and add 10.4mL of water, stir with a glass rod and heat to boiling to obtain Agarose-Ca solution, its pH value is 7.0, wherein the ratio of agarose to calcium nitrate is 1g:0.03mol, the mass percentage of agarose The content is 1.22%, and the molar concentration of calcium nitrate is 0.366mol / L.

[0050] Weigh 136.00g KH 2 PO 4 and 31.33g KF 2H 2 0, 1000mL volumetric flask is constant volume, obtains phosphate ion and fluoride ion solution, and wherein, the molar concentration of phosphate ion is 1.0mol / L, and the molar concentration of fluoride ion is 0.33mol / L.

[0051] Measure 3.6 mL of phosphate ion and fluoride ion solution, add hot Agarose-Ca solution to obtain a mixed solution, place ...

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Abstract

The invention discloses a dental prosthetic material and a preparation method thereof. The method comprises the following steps: (1) soaking tooth enamel, dentin or titanium sheets by using a phosphoric acid aqueous solution or a mixed aqueous solution of peroxide and phosphoric acid; and (2) adding an aqueous solution of phosphate ions and fluorine ions into an Agarose-Ca solution to obtain a mixed solution, and placing the tooth enamel, the dentin or the titanium sheets treated by the step (1) into the mixed solution and obtaining the material on the tooth enamel, the dentin or the titanium sheets after the reaction is finished, wherein the Agarose-Ca solution is the aqueous solution of the agarose and calcium nitrate. The structure of the dental prosthetic material prepared by the method is close to natural human tooth enamel, and has phosphorite hexagonal prism crystals and enamel crystal column microstructures. The dental prosthetic material disclosed by the invention is expected to replace the conventional dental prosthetic material to repair the enamel damage caused by dental caries or other dental diseases, and also can serve as a groove sealing material for preventing the dental caries.

Description

technical field [0001] The invention relates to a dental restorative material and a preparation method thereof. Background technique [0002] Enamel is the outermost part of human teeth, with a thickness of 1 to 2 mm. As the hardest mineralized tissue in the vertebrate kingdom, enamel cuts and grinds food. However, due to natural wear, acid bacterial corrosion, aging and other reasons, dental caries or other enamel damage diseases are very common. Severe dental caries is not only enamel damage, but also affects health and reduces quality of life. Studies have shown that the bacteria in carious surfaces may reach various parts of the human body along with the blood circulation, thereby inducing various diseases such as heart disease, arteriosclerosis, diabetes, and pregnancy syndrome. [0003] The best way to prevent the development of dental caries is to treat early superficial caries when they appear. At present, the commonly used method for the treatment of early denta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K6/097A61K6/033A61K6/027A61K6/838A61K6/898
Inventor 陈海峰刘诗泽
Owner 杭州蝾螈科技有限公司
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