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Zinc phosphate cement binding material for dental department

A bonding material, zinc phosphate technology, used in dentistry, dental preparations, dental prostheses, etc., can solve problems such as pulp and gingival irritation, human discomfort, etc., and achieve the effect of weakening acidity

Active Publication Date: 2012-01-04
CHENGDU XINJIN SHIFENG MEDICAL APP ANDINSTR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing zinc phosphate cement bonding materials will release free phosphoric acid during and after solidification, which can stimulate the dental pulp and gums and make the human body feel uncomfortable.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Weigh powder: zinc oxide 100g, magnesium oxide 10g, silicon dioxide 3g, bismuth oxide 1g, sodium carbonate 3g;

[0015] Weigh the liquid preparation: 100 g of orthophosphoric acid, 4 g of aluminum oxide, 4 g of zinc oxide, and 40 g of water.

[0016] Prepared products: Blend according to the ratio of 1ml of liquid preparation per 2g of powder. After mixing evenly, the bonding of the tooth and the surface of the restoration needs to be completed within 5 minutes.

Embodiment 2

[0018] Weigh powder: zinc oxide 100g, magnesium oxide 12g, silicon dioxide 4g, bismuth oxide 1.5g, sodium carbonate 4g;

[0019] Weigh the liquid preparation: 100 g of orthophosphoric acid, 12 g of aluminum oxide, 12 g of zinc oxide, and 50 g of water.

[0020] Prepared products: Blend according to the ratio of 1ml of liquid preparation per 2g of powder. After mixing evenly, the bonding of the tooth and the surface of the restoration needs to be completed within 5 minutes.

Embodiment 3

[0022] Weigh powder: zinc oxide 100g, magnesium oxide 15g, silicon dioxide 5g, bismuth oxide 2g, sodium carbonate 5g;

[0023] Weigh the liquid preparation: 100 g of orthophosphoric acid, 20 g of aluminum oxide, 20 g of zinc oxide, and 60 g of water.

[0024] Prepared products: Blend according to the ratio of 1ml of liquid preparation per 2g of powder. After mixing evenly, the bonding of the tooth and the surface of the restoration needs to be completed within 5 minutes.

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PUM

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Abstract

The invention discloses an improved zinc phosphate cement binding material for dental department. The binding material comprises powder and liquid. The powder comprises the following components: 100 parts of zinc oxide, 10 to 15 parts of magnesium oxide, 3 to 5 parts of silicon dioxide, 1 to 2 parts of bismuth oxide, and 3 to 5 parts of sodium carbonate. The liquid comprises the following components: 100 parts of orthophosphoric acid, 4 to 20 parts of aluminum oxide, 4 to 20 parts of zinc oxide, and 40 to 60 parts of water. The powder and the liquid are blended in a ratio of every 2 grams of powder to 1 milliliter of liquid. The prepared oral binding material is paste with certain flowability before solidification, and can penetrate fine structures on the surfaces of teeth and a recovered body so as to play a binding role. The binding material has good mechanical property, greatly weakens the acidity, and does not bring obvious stimulating sense to a patient.

Description

technical field [0001] The invention relates to the field of dental medicine, in particular to an improved dental zinc phosphate cement bonding material. Background technique [0002] Cement usually refers to a kind of inorganic non-metallic material with bonding effect that can solidify after mixing metal salt or other oxides as powder and special liquid. It is mainly used for various restorations (usually between teeth and restorations). ) bonding. Zinc phosphate cements are the most commonly used of these. Zinc phosphate cement has good mechanical properties such as compressive strength, tensile strength and hardness, and can play a good bonding role between teeth and restorations. However, the existing zinc phosphate cement bonding materials will release free phosphoric acid during and after solidification, which can stimulate the dental pulp and gums and make the human body feel uncomfortable. In a short period of time after the powder liquid is reconciled, it can be...

Claims

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Application Information

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IPC IPC(8): A61K6/033A61K6/027A61K6/838
Inventor 杨晓龙
Owner CHENGDU XINJIN SHIFENG MEDICAL APP ANDINSTR CO LTD
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