Dental pit and fissure sealant

A technology of pit and fissure sealing and dentistry, applied in dental preparations, dentistry, dental prosthesis, etc., can solve the problems of high price, high foreign exchange consumption, and product dependence on imports, and achieve high cross-linking degree, less heat release, and accelerated polymerization and the effect of the curing process

Active Publication Date: 2016-05-25
北京固琦口腔科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no domestic manufacturer of dental light-cured fluoride-containing pit and fissure sealant materials. All the required products are imported, and the price is very expensive. A large amount of foreign exchange is consumed every year.

Method used

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  • Dental pit and fissure sealant
  • Dental pit and fissure sealant
  • Dental pit and fissure sealant

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～3

[0038] The composition of the base resin (ie, the polymerizable acrylic resin containing the photoinitiating system) of Examples 1-3 of the present invention is shown in Table 1. The distribution ratio of the product components of Examples 1-3 and their physical properties are recorded in Table 2.

[0039] preparation:

[0040] (1) Preparation of filler submicron silica powder: put 100ml of 17.15mol / L absolute ethanol solution and 27ml of 25% ammonia solution into a 1L glass reactor, stir mechanically for 1.5 to 2.5 hours; add 0.5g of PEG1000 Dissolve in 56ml of deionized water, add the aqueous solution of this dispersant to the reactor, stir at high speed to make the solution evenly mixed, slowly add 90ml, 4.48mol / L Si (OC 2 h 5 ) 4 , high-speed stirring and reacting for 40 minutes to obtain a uniform and stable sol; the sol was spray-dried, the inlet temperature of the spray dryer was 175-185°C, and the outlet temperature was 85-95°C to obtain spherical carbon dioxide wit...

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Abstract

The invention relates to a pit and fissure sealant for dental department. The pit and fissure sealant comprises the following two compositions in percentage by weight: 5%-30% of superfine structured packing with an average particle size of 0.05-0.4mu m, and 95%-70% of polymerizable acrylate monomer containing a photo-initiating system, wherein the superfine structured packing is superfine silica structured powder packing which is treated by fluoride. The pit and fissure sealant for dental department is high in hardness, good in wear resistance, high in compressive strength and bending strength, and low in manufacturing cost. The superfine silica structured powder packing which is treated by fluoride can continuously release fluorine ions.

Description

technical field [0001] The invention relates to a dental pit and fissure sealant, in particular to a dental pit and fissure sealing composition capable of continuously releasing fluoride ions. Background technique [0002] Pit and fissure sealant, referred to as pit and fissure sealant, is a new type of dental polymer material developed in the late 1960s. Usually, this material has good fluidity and can reach the pits and fissures. It is applied to the pits and fissures of the tooth surface, and after curing, it forms a protective barrier, which can effectively seal the pits and fissures and isolate the oral environment. The caries-causing factors can damage the teeth, so as to prevent the occurrence of caries. Its advent has opened up a new approach to prevent dental caries for oral preventive medicine. [0003] The application of pit and fissure sealant as an effective method to prevent pit and fissure caries of deciduous molars and young permanent teeth has been confirm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K6/00C08F222/20C08F222/22C08F220/34C08F2/48C08K9/02C08K9/06C08K3/36C08K3/34
Inventor 茹岩岩陈亚东
Owner 北京固琦口腔科技有限公司
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