Method for preparing dentin adhesive material for deciduous teeth of children

A bonding material and dentin technology, applied in dental preparations, dentistry, dental prosthesis, etc., can solve the problems of shallow demineralization, deciduous teeth easy to fall off, poor bonding effect, etc., to achieve inhibition of growth, broad market prospects, and adhesion strong binding effect

Inactive Publication Date: 2016-12-14
仇颖莹
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main technical problem to be solved by the present invention is to solve the problem that the traditional children's deciduous teeth dentin bonding material is weak in acidity during use, resulting in shallow demineralization, poor bonding effect, and easy to fall off during filling and restoration of deciduous teeth. Provided is a preparation method for children's deciduous dentin bonding material. In the present invention, eggshells are calcined, soaked in water, and carbon dioxide is introduced to collect sediments, and dried to obtain superfine eggshell powder, and carp scales are exposed to the sun for aging. Soak in sodium chloride solution to remove impurities, then use pepsin to extract protein from fish scales under acidic conditions with ultrasound, use ammonium chloride as a precipitant, centrifuge after precipitation, and after drying, hydrolyze into polypeptides under acidic conditions, and then Add epichlorohydrin to modify to obtain a yellow viscous liquid, then calcinate the fish scale filter residue after removing protein at high temperature into powder, mix it with the yellow viscous liquid and ultra-fine eggshell powder according to the proportion of ball milling, sterilize and package to obtain children's milk dentin bonding material

Method used

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Examples

Experimental program
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Effect test

example 1

[0020]Weigh 100 g of eggshells, wash them three times with deionized water, transfer them to an oven, and dry them to constant weight at 105°C. The temperature was heated to 900 °C at a min rate, calcined for 8 min, and cooled to room temperature with the furnace. The calcined eggshells were poured into a beaker containing 1200 mL of deionized water, and carbon dioxide gas was introduced into the beaker at a rate of 3 mL / min. Until it is completely precipitated, filter, remove the filtrate, collect the filter residue, and then transfer the filter residue to an oven, and dry it to constant weight at 105 ° C to obtain ultra-fine eggshell powder, which is for later use; Weigh 200g of carp fish scales and use them manually. After washing with ionized water for 3 times, put it in the sun for 3 days, collect the fish scales after exposure, pour it into a beaker containing 1L of 0.5mol / L sodium chloride solution, soak for 8h, filter, remove the filtrate, use Wash the filter residue t...

example 2

[0023] Weigh 120 g of eggshells, wash them repeatedly with deionized water for 4 times, then transfer them into an oven, and dry them to constant weight at 108°C. The temperature was heated to 920 °C at a min rate, calcined for 10 min, and cooled to room temperature with the furnace. The calcined eggshells were poured into a beaker containing 1400 mL of deionized water, and carbon dioxide gas was introduced into the beaker at a rate of 4 mL / min. Until it is completely precipitated, filter, remove the filtrate, collect the filter residue, then transfer the filter residue to an oven, and dry it to constant weight at 108 ° C to obtain ultra-fine eggshell powder, which is for later use; Weigh 250g of carp fish scales and use them manually. After washing with ionized water for 4 times, put it in the sun for 4 days, collect the fish scales after exposure, pour it into a beaker containing 1.5L of 0.6mol / L sodium chloride solution, soak for 9h, filter, remove the filtrate, use Wash th...

example 3

[0026] Weigh 200 g of eggshells, wash them repeatedly with deionized water for 5 times, then transfer them into an oven, and dry them to constant weight at 110 °C. The temperature was heated to 950 °C at a min rate, calcined for 12 min, and cooled to room temperature with the furnace. The calcined eggshells were poured into a beaker containing 1600 mL of deionized water, and carbon dioxide gas was introduced into the beaker at a rate of 5 mL / min. Until it is completely precipitated, filter, remove the filtrate, collect the filter residue, then transfer the filter residue to an oven, and dry it to a constant weight at 110 ° C to obtain ultra-fine eggshell powder, which is for later use; Weigh 300g of carp fish scales and use them manually. After washing with ionized water for 5 times, put it in the sun for 5 days, collect the fish scales after exposure, pour it into a beaker containing 2L of 0.8mol / L sodium chloride solution, soak for 10h, filter, remove the filtrate, use The f...

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Abstract

The invention discloses a method for preparing dentin adhesive materials for deciduous teeth of children, and belongs to the field of medical material synthesis. The method includes calcining eggshells and then soaking the eggshells in water; filling the water with carbon dioxide and collecting sediments; drying the sediments to obtain ultrafine eggshell powder; exposing carp scales to the sun, aging the carp scale, then soaking the carp scale in sodium chloride solution and removing impurities from the carp scales; extracting proteins in the scales under acidic conditions by the aid of pepsin matched with ultrasonic waves; precipitating the proteins by the aid of ammonium chloride and then centrifugally separating the proteins; drying the proteins and then preliminarily hydrolyzing the proteins under acidic conditions to obtain polypeptides; adding epichlorohydrin into the polypeptides and modifying the polypeptides to obtain yellow viscous liquid; calcining scale filter residues without the proteins at the high temperature to obtain powder and then carrying out ball-mill mixing on the powder, the yellow viscous liquid and the ultrafine eggshell powder according to proportions to obtain mixtures; sterilizing the mixtures and then packaging the mixtures to obtain the dentin adhesive materials for the deciduous teeth of the children. The ammonium chloride is used as a precipitant. The method has the advantages that the dentin adhesive materials prepared by the aid of the method are high in viscosity and difficult to fall off and contain antibacterial constituents, and accordingly bacteria are difficult to breed; the dentin adhesive materials can be slowly degraded in permanent tooth growth procedures of the children in late periods, and the method can be popularized and utilized on a large scale.

Description

technical field [0001] The invention discloses a preparation method of a dentin bonding material for children's deciduous teeth, and belongs to the field of medical material synthesis. Background technique [0002] Deciduous teeth are not only important chewing organs for children, but also play an important role in the growth and development of children and the formation of normal permanent dentition. The normal deciduous dentition can help children to pronounce correctly. In addition, decayed deciduous teeth or even prematurely lost deciduous teeth will have varying degrees of impact on children's psychology. Although deciduous teeth will eventually be replaced by permanent teeth, the treatment of deciduous tooth caries should receive extensive attention. The choice of filling material is an important factor in children's dental restoration and aesthetics. The success of resin filling restoration depends on the bonding system. A good bonding system can not only form a du...

Claims

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Application Information

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IPC IPC(8): A61K6/08A61K6/06A61K6/884
CPCA61K6/30A61K6/849A61K6/884
Inventor 仇颖莹许博伟
Owner 仇颖莹
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