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Homogeneous denture material and patternless manufacturing process

A denture and uniform technology, applied in the field of uniform denture material and moldless manufacturing process, can solve the problems of artificial teeth falling off, low toughness, unsatisfactory and the like, and achieve the effects of improving bonding strength, improving mechanical properties, and improving antibacterial properties.

Active Publication Date: 2016-11-09
珠海新茂义齿科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although PMMA is an ideal base material, due to its low toughness and high brittleness, there are still some unsatisfactory aspects, especially its compressive strength and tensile strength cannot meet some clinical requirements.
Moreover, the bonding strength between the PMMA base and the artificial tooth is insufficient. In clinical practice, it is often found that the artificial tooth falls off from the base during the use of the denture, making the denture unusable.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] A uniform denture material is mainly made of the following components by weight: 100 parts of dental water, 100 parts of tray powder, 1.5 parts of adhesive, 0.6 parts of plasticizer, and 5 parts of pigment.

[0032] The moldless manufacturing technique of above-mentioned denture material, comprises the steps:

[0033] 1) Weigh each component by weight;

[0034] 2) Mix the components evenly and put them into the injection tube, inject the mixture into the plaster model with the denture female mold cavity through a special injection machine under the pressure of 1MPa, and then inject the mixture at a temperature of 120 o C. Carry out heat treatment under the condition of pressure of 10MPa, and obtain the finished product after cooling.

Embodiment 2

[0036] A uniform denture material, which is mainly made of the following components by weight: 100 parts of methyl methacrylate, 0.005 parts of 2,5-di-tert-butyl hydroquinone, 2-tert-butyl-para-phenyl 0.0008 parts of diphenol, 95 parts of polymethyl methacrylate, 1 part of polyvinyl alcohol, 0.12 parts of dibutyl phthalate, and 0.48 parts of dioctyl phthalate.

[0037] The moldless manufacturing technique of above-mentioned denture material, comprises the steps:

[0038] Using the injection molding method, mix the components evenly and heat them to 95°C to soften them into a viscous fluid state to obtain a molten liquid, then put the molten liquid into the injection tube, install it on a special injection machine, and pressurize it to 20MPa. The viscous molten liquid is poured into the mold box with the denture female mold, and the finished product is obtained after cooling.

Embodiment 3

[0040] A uniform denture material, which is mainly made of the following components in parts by weight:

[0041]105 parts of methyl methacrylate, 5 parts of 2,5-di-tert-butyl hydroquinone, 0.3 parts of phenyl o-hydroxybenzoate, 0.1 parts of ethylene glycol dimethacrylate, 105 parts of polymethyl methacrylate 1.2 parts of polyvinyl alcohol, 0.8 parts of polyethylene glycol fatty acid ester, 5 parts of pigments.

[0042] The moldless manufacturing technique of above-mentioned denture material, comprises the steps:

[0043] 1) Weigh each component by weight;

[0044] 2) Mix the components evenly and put them into the injection tube, inject the mixture into the plaster model with the denture cavity under the pressure of 0.5MPa through a special injection machine, and then inject the mixture at a temperature of 90 o C. Carry out heat treatment under the condition of a pressure of 20MPa, and obtain the finished product after cooling.

[0045] Wherein, the glass fiber used in modi...

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Abstract

The invention belongs to the technical field of denture preparation and particularly relates to a homogeneous denture material and a patternless manufacturing process. The material is mainly prepared from the following components in parts by weight: 100 to 120 parts of special water for a dental department, 95 to 105 parts of dental base acrylic resin powder, 0.8 to 2 parts of binding agent and 0.5 to 0.8 part of plasticizer. The patternless manufacturing process of the homogeneous denture material comprises the following steps: firstly, weighing all the components according to the weight parts; secondly, uniformly mixing all the components, then filling an injection pipe with a mixture, injecting the mixture into a plaster model with a denture female die cavity at a certain pressure by using a special injection molding machine; performing heat treatment under the condition that the temperature is 90 to 150DEG C and the pressure is 1 to 20MPa, and cooling to obtain a finished product. The denture material provided by the invention has the properties of high toughness and mechanical strength, good bacteria resistance, and the like.

Description

technical field [0001] The invention belongs to the technical field of denture preparation, and in particular relates to a uniform denture material and a moldless manufacturing process. Background technique [0002] Dentures are used for the restoration and replacement of missing, missing or dentition teeth, as well as for oral health and orthodontics. With the improvement of people's living standards and the development of stomatology, the clinical demand for high-tech oral material products has increased significantly. The development of oral restoration is inseparable from the development of oral materials and techniques. Denture restoration materials mainly include ceramics, resins and metal materials. At present, the metals used for denture materials at home and abroad are mainly precious metal porcelain teeth, Ni-Cr alloys, Co-Cr alloys, and titanium alloys. The non-toxic, non-irritating and good biocompatibility of precious metal porcelain teeth are unanimously soug...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K6/083A61K6/09A61K6/00A61K6/893
CPCA61K6/78A61K6/887A61K6/893C08L75/04C08L33/12C08L29/04
Inventor 梁鹏伟汪浩黄辉岭谢金龙
Owner 珠海新茂义齿科技有限公司
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