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Dental composition and preparation method therefor

A composition and dental technology, applied in the direction of dental preparations, dentistry, dental prostheses, etc., can solve the problems of tooth coloring, etc., and achieve the effects of ease of use, improved curing and biocompatibility

Inactive Publication Date: 2019-11-12
(株)倍丽康
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the powder used by mixing with water starts to react when it is applied to the teeth and therefore has the disadvantage of a short working time of less than 5 min but a long curing time of about 4 hr
Also, the problem with MTA is that it looks gray due to the ferrite component, so teeth can be colored; and also that when applied to narrow root canals, an additional carrier needs to be used

Method used

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  • Dental composition and preparation method therefor
  • Dental composition and preparation method therefor
  • Dental composition and preparation method therefor

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0089] Preparation Example 1: ordinary Portland cement (ordinary Portland cement, OPC)

[0090] Weigh 0.6 parts by weight of magnesium oxide, 141.5 parts by weight of calcium oxide, 51.7 parts by weight of silicon dioxide, 2.1 parts by weight of aluminum oxide and 0.7 parts by weight of iron oxide dried at 105°C for more than 24 hours, and put them into V Shaped mixer (this mixer contains ceramic balls with sizes of 10 mm, 5 mm and 1 mm in a predetermined ratio in the same volume as the material mixture to achieve uniform mixing and pulverization of materials with different particle diameters and specific gravity into a certain size), and then mixed at 50rpm for 4hr.

[0091] After mixing, the ceramic balls were removed, and the resulting mixture was made into a hollow cylinder to achieve a completely homogeneous reaction, and placed in a platinum crucible, fired in a firing furnace at 1,500°C for 1 hour and 30 minutes, and immediately removed from the Take it out of the furn...

preparation example 2

[0094] Preparation Example 2: Cement Containing Silicon Atom Doped Matrix

[0095] The cement of Preparation Example 2 was produced in the same manner as in Preparation Example 1, except that 137 parts by weight of calcium oxide, 45 parts by weight of silica and 18 parts by weight of alumina were used instead of 141.5 parts by weight of Calcium oxide in parts by weight, silicon dioxide in 51.7 parts by weight, aluminum oxide in 2.1 parts by weight, iron oxide in 0.7 parts by weight and magnesium oxide in 0.6 parts by weight.

[0096]The phase analysis of the cement of Preparation Example 2 was performed in the same manner as the phase analysis of the cement of Preparation Example 1.

preparation example 3

[0097] Preparation Example 3: Cement Containing Silicon Atom Doped Matrix

[0098] The cement of Preparation Example 3 was manufactured in the same manner as in Preparation Example 1, except that 141 parts by weight of calcium oxide, 45 parts by weight of silicon dioxide and 14 parts by weight of alumina were used instead of 141.5 parts by weight of Calcium oxide in parts by weight, silicon dioxide in 51.7 parts by weight, aluminum oxide in 2.1 parts by weight, iron oxide in 0.7 parts by weight and magnesium oxide in 0.6 parts by weight.

[0099] The powder phase analysis of Preparation Example 3 was performed in the same manner as the phase analysis of the powder of Preparation Example 1.

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Abstract

The present invention provides a dental composition comprising cement and a nonaqueous liquid, wherein the cement comprises: a first domain comprising alite; a second domain comprising belite; and a matrix located between domains of at least one type selected from the group consisting of the first domain and the second domain, and comprising silicon (Si) atom-doped tricalcium aluminate (3CaO.Al2O3). A dental hydraulic composition according to the present invention is an ointment-type composition having a single composition, and is convenient to use and exhibits an aesthetic impression, high curing property, and high biocompatibility.

Description

technical field [0001] The present invention relates to dental compositions and methods for their preparation, more particularly to dental hydraulic compositions comprising a hydraulic cement and a non-aqueous liquid, and methods for preparing said compositions. Background technique [0002] As bacteria living in the oral cavity break down sugar components to produce acids, the enamel begins to break down, thus causing tooth decay, which is known as dental caries. When caries is limited to the enamel, there is little pain, but when caries progresses to the dentin or pulp, it can cause severe pain. In this case, root canal treatment is necessary to remove the pulp in the root canal. When performing root canal treatment, it is necessary to fill the hollow space of the root canal to inhibit the occurrence of secondary infection, and gutta-percha and sealant are the most widely used materials for filling the hollow space of the root canal. [0003] Gut glue is a very safe mate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K6/06
CPCA61K6/849A61K6/851A61K6/54A61K6/836A61K6/76A61K6/86
Inventor 吴明焕姜钟镐金允基
Owner (株)倍丽康
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