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Water-cured temperature-sensitive injection type dental root canal repair material and application thereof

A restorative material, injection-type technology, applied in dentistry, dental preparations, dental prosthesis, etc., can solve the problems affecting the treatment effect and success rate, low work efficiency, difficult operation, etc., to achieve good apical sealing and convenient operation , not easy to lose the effect

Active Publication Date: 2017-11-10
武汉新思邦生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the material is in the form of solid powder, it needs to be mixed before use, it is not easy to operate, and the work efficiency in clinical use is very low, and it is easy to cause the root tip tissue to be soaked and washed away by the liquid of the root tip tissue at the initial filling stage, thereby affecting the treatment effect and success rate; In addition, it also contains aluminum, a toxic metal that is harmful to the human body, and can cause problems such as tooth discoloration.

Method used

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  • Water-cured temperature-sensitive injection type dental root canal repair material and application thereof
  • Water-cured temperature-sensitive injection type dental root canal repair material and application thereof
  • Water-cured temperature-sensitive injection type dental root canal repair material and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Weigh 4.5 grams of tricalcium silicate / dicalcium silicate with particle size less than 10um, 0.3 grams of calcium hydroxide, 0.4 grams of tetracalcium phosphate, 0.4 grams of calcium hydrogen phosphate, 0.4 grams of hydroxyapatite, hydroxybutyl chitosan 0.5 grams, 1.5 grams of zirconium dioxide to form a mixture, and use 2 grams of glycerol to adjust it into a paste to obtain a root canal restoration material. The material is milky white, glossy, and has good fluidity, no layering, no phase separation, and a resting time of up to 183 days. See the appearance picture figure 1 , the effect of the material after curing is shown in figure 2 , figure 2 It can be seen that the material is still white and solid after curing, which will not cause tooth discoloration. Figure 5 It is the appearance of the aqueous solution of 5% hydroxybutyl chitosan. It can be seen from the figure that hydroxybutyl chitosan is still in solution at 25°C and has good fluidity, and it turns in...

Embodiment 2

[0051] Weigh 3.7 grams of tricalcium silicate / dicalcium silicate with particle size less than 10um, 0.5 grams of calcium hydroxide, 0.3 grams of tetracalcium phosphate, 0.5 grams of calcium hydrogen phosphate, 0.4 grams of hydroxyapatite, hydroxybutyl chitosan 0.8 grams, 0.5 grams of tantalum pentoxide, and 0.5 grams of zirconium dioxide are used to form a mixture, which is adjusted into a paste with 2.8 grams of water-soluble silicone oil and poured into a syringe. The material is milky white, lustrous, has good fluidity, and does not layer or phase separate.

Embodiment 3

[0053] Weigh 3.3 grams of tricalcium silicate / dicalcium silicate with particle size less than 10um, 0.2 grams of calcium hydroxide, 0.8 grams of tetracalcium phosphate, 0.7 grams of calcium hydrogen phosphate, 0.7 grams of hydroxyapatite, hydroxybutyl chitosan 1.0 g, 0.8 g of zirconium dioxide, and 0.5 g of barium sulfate form a mixture, which is adjusted into a paste with 2.0 g of polyethylene glycol, and poured into a syringe. The material is milky white, lustrous, has good fluidity, and does not layer or phase separate.

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Abstract

The invention discloses a water-cured temperature-sensitive injection type dental root canal repair material and application thereof. The water-cured temperature-sensitive injection type dental root canal repair material is white paste, is an injection type root canal repair material and comprises, by mass, 25%-65% of tricalcium silicate or a tricalcium silicate / dicalcium silicate mixture mainly prepared from tricalcium silicate, 2%-10% of calcium hydroxide, 2%-25% of calcium phosphate bone cement, 5%-10% of hydroxybutyl chitosan, 5%-15% of X-ray developing agent, and 18%-28% of an anhydrous nontoxic solvent. Filling of the water-cured temperature-sensitive injection type dental root canal repair material can be achieved in an injected mode, and operation is convenient; and the water-cured temperature-sensitive injection type dental root canal repair material has the good apical sealing ability and biocompatibility and can relieve or even eliminate the root filling reaction. The water-cured temperature-sensitive injection type dental root canal repair material can be used for injection filling treatment of various root canal tip operations.

Description

technical field [0001] The invention relates to a novel root canal restoration material for treating diseases such as pulpitis and periodontitis, and belongs to the field of medical materials. Background technique [0002] In the process of diagnosis and treatment of oral diseases, it is often necessary to perform pulp capping, apex induction, apical backfilling, repair of root canal side wall and medullary perforation, because the treatment materials must be in direct contact with the tissue, It is required that the materials used must have good biocompatibility, durable sealing and the ability to induce tissue regeneration. Materials used in the past such as silver amalgam, glass ionomer cement (GIC), intermediate repair material (IRM), super phenylethyl benzoic acid, calcium hydroxide paste, hydroxyapatite (HA), composite resin, etc. are difficult to repair. achieve the desired effect. At present, Mineral Trioxide Aggregate (MTA), which is widely used clinically, is a f...

Claims

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Application Information

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IPC IPC(8): A61K6/027A61K6/033A61K6/097A61K6/838A61K6/898
CPCA61K6/831A61K6/838A61K6/898C08L5/08
Inventor 樊李红聂敏彭锴陈凌云
Owner 武汉新思邦生物科技有限公司
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