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High-strength tooth family alginate impression material

A technology of dental alginate and impression materials, which is applied in the fields of dental impression materials, dentistry, and compression molding cups, etc., can solve the problems of incompatibility of rigidity and toughness, low strength, etc., and achieve good deformation recovery ability and The effect of compressive strength

Inactive Publication Date: 2009-08-26
QINGDAO BRIGHT MOON SEAWEED GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The invention provides a dental alginate impression material, which can solve the problems of low strength, rigidity and toughness in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] High Strength Dental Alginate Impression Material Formula:

[0016] Sodium alginate with M / G value 1.0 14%

[0017] Calcium Sulfate Dihydrate 14%

[0018] Sodium Triphosphate 1.8%

[0019] Diatomaceous earth 69.7%

[0020] Sodium polyacrylate 0.5%

[0021] Mix the above components thoroughly in a mixer to obtain a homogeneous dental alginate impression material.

Embodiment 2

[0023] High Strength Dental Alginate Impression Material Formula:

[0024] Potassium alginate with M / G value of 1.05 13%

[0025] Calcium Sulfate Dihydrate 13%

[0026] Sodium Triphosphate 1.8%

[0027] Diatomaceous earth 71.5%

[0028] Xanthan Gum 0.5%

[0029] Tragacanth Gum 0.2%

[0030] Mix the above components thoroughly in a mixer to obtain a homogeneous dental alginate impression material.

Embodiment 3

[0032] High Strength Dental Alginate Impression Material Formula:

[0033] Sodium alginate with M / G value 1.1 15%

[0034] Calcium Sulfate Hemihydrate 15%

[0035] Sodium pyrophosphate 2%

[0036] Diatomaceous earth 67.5%

[0037] Xanthan Gum 0.3%

[0038] Sodium polyacrylate 0.2%

[0039] Mix the above components thoroughly in a mixer to obtain a homogeneous dental alginate impression material.

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PUM

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Abstract

The invention discloses a high-strength dental alginate impression material, which is mainly consists of alginate, gelling agent, retarding agent and filling agent. The invention selects the high G alginate with stronger gel rigidity and is further added with one or a plurality of xanthan gum, tragacanth gum and sodium polyacrylate for synergy and a polymer substance is used for improving gel flexibility, so as to prepare the high-strength dental alginate impression material. Compared with the traditional formula products, the high-strength dental alginate impression material of the invention has better deformation recovery ability and pressure resistance intensity, so the invention is more conductive to obtain clear and precise dental impressions.

Description

technical field [0001] The invention belongs to the technical field of new dental materials in stomatology, and in particular relates to a high-strength dental alginate impression material. Background technique [0002] Dental alginate impression material is the basic material for oral restoration to make impression. The main components of alginate impression material are: alginate (such as sodium alginate, potassium alginate, etc.), gelling agent (such as hemihydrate, calcium sulfate dihydrate, etc.), retarders (such as sodium pyrophosphate, sodium carbonate, etc.), fillers (such as pearl salt, kaolin, diatomaceous earth, etc.), the mechanism is: alginate meets Calcium ions later solidify to form a gel: [0003] 2NaAlg+CaSO 4 →Na 2 SO 4 +Ca(Alg) 2 [0004] The above reaction is extremely rapid, which makes the operation difficult. It is necessary to add a retarder in the colloid in advance to adjust the setting time so that it meets the time required for the operation...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61K6/10A61K6/90
Inventor 王晓梅李可昌张玉伟黑雅各刘健
Owner QINGDAO BRIGHT MOON SEAWEED GROUP
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