Hydrophilic antibacterial silicone rubber oral impression material and preparation method thereof

A technology of oral impression material and silicone rubber, which can be applied to materials for dental impressions, molded cups, and pharmaceutical formulations, can solve problems such as adverse effects on dimensional stability, uneven distribution of disinfectant, and impact on disinfection effects, etc., to achieve Good hydrophilicity and antibacterial ability, excellent mechanical properties, rapid promotion effect

Active Publication Date: 2021-09-28
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Immersion disinfection can fully contact the surface of the impression with the disinfectant solution, but it is not suitable for more hydrophilic impression materials, because the disinfectant may adversely affect its dimensional stability
Spray disinfection limits the exposure time of the impression in the disinfectant solution, and is more suitable for impression materials with good hydrophilicity, but due to the uneven distribution of the disinfectant solution, it may affect the disinfection effect to a certain extent

Method used

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  • Hydrophilic antibacterial silicone rubber oral impression material and preparation method thereof
  • Hydrophilic antibacterial silicone rubber oral impression material and preparation method thereof
  • Hydrophilic antibacterial silicone rubber oral impression material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] A hydrophilic antibacterial silicone rubber oral impression material, comprising a matrix component and a catalytic component; in parts by weight, the matrix component includes: 50 parts of vinyl silicone oil, 12.5 parts of fumed white carbon black, and 22.5 parts of kaolin , 5 parts of vinyl MQ silicone resin, 6 parts of hydrogen-containing silicone oil, 1 part of 1-ethynyl-1-cyclohexanol, 0.3 parts of pigment, 4 parts of nano antibacterial inorganic filler; the catalytic components include: vinyl silicone oil 50 Parts, fumed silica 12.5 parts, kaolin 22.5 parts, vinyl MQ silicone resin 5 parts, platinum catalyst 4 parts, polyether modified silicone oil 5.5 parts.

[0044] Wherein, the viscosity of the vinyl silicone oil is 5000mPa·s, the hydrogen content of the hydrogen-containing silicone oil is 0.8wt%, and the specific surface area of ​​the fumed silica is 200mPa. 2 / g, the particle diameter is 12nm, the mesh number of the kaolin is 1250 mesh, the pigment is a food-...

Embodiment 2

[0051] A hydrophilic antibacterial silicone rubber oral impression material, comprising a matrix component and a catalytic component; in parts by weight, the matrix component includes: 40 parts of vinyl silicone oil, 5 parts of fumed white carbon black, and 5 parts of kaolin , 5 parts of vinyl MQ silicone resin, 4 parts of hydrogen-containing silicone oil, 0.5 parts of 1-ethynyl-1-cyclohexanol, 0.2 parts of pigment, 3 parts of nano antibacterial inorganic filler; the catalytic components include: vinyl silicone oil 40 5 parts, fumed silica 5 parts, kaolin 5 parts, vinyl MQ silicone resin 5 parts, platinum catalyst 3 parts, polyether modified silicone oil 4 parts.

[0052] The preparation method is the same as in Example 1.

Embodiment 3

[0054] A hydrophilic antibacterial silicone rubber oral impression material, comprising a matrix component and a catalytic component; in parts by weight, the matrix component includes: 60 parts of vinyl silicone oil, 15 parts of fumed white carbon black, and 30 parts of kaolin , 10 parts of vinyl MQ silicone resin, 7 parts of hydrogen-containing silicone oil, 1 part of 1-ethynyl-1-cyclohexanol, 0.4 parts of pigment, 5 parts of nano antibacterial inorganic filler; the catalytic components include: vinyl silicone oil 60 15 parts, fumed silica 15 parts, kaolin 30 parts, vinyl MQ silicone resin 10 parts, platinum catalyst 5 parts, polyether modified silicone oil 7 parts.

[0055] The preparation method is the same as in Example 1.

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Abstract

The invention relates to a hydrophilic antibacterial silicone rubber oral impression material and a preparation method thereof. The hydrophilic antibacterial silicone rubber oral impression material comprises a matrix component and a catalytic component, wherein the matrix component is prepared from the components in parts by weight: 40 to 60 parts of vinyl silicone oil, 5 to 15 parts of fumed silica, 0 to 30 parts of kaolin, 0 to 10 parts of vinyl MQ silicon resin, 4 to 7 parts of hydrogen-containing silicone oil, 0.5 to 1 part of 1-ethynyl-1-cyclohexanol, 0.2 to 0.4 part of pigment and 2 to 5 parts of nano antibacterial inorganic filler; the catalytic component is prepared from the components of 40-60 parts of vinyl silicone oil, 5-15 parts of fumed silica, 0-30 parts of kaolin, 0-10 parts of vinyl MQ silicon resin, 3-5 parts of a platinum catalysts and 3-7 parts of polyether modified silicone oil. The hydrophilic antibacterial silicone rubber oral impression material not only has good hydrophilicity and antibacterial ability, but also has excellent mechanical properties, detail reproducibility, dimensional stability and biological safety.

Description

technical field [0001] The invention relates to a hydrophilic antibacterial silicone rubber oral cavity impression material and a preparation method thereof, belonging to the technical field of oral cavity impressions. Background technique [0002] Taking oral impression is the first process in oral restoration work, and its quality is directly related to the final restoration effect. Impression materials commonly used in clinical practice are mainly divided into two categories: one is hydrocolloid impression materials, and the other is elastomer impression materials. Silicone rubber impression material is an elastomeric impression material. With its advantages of high strength, good elasticity, high precision, stable size, and good plasticity, it has become one of the ideal impression materials currently used in clinical practice. [0003] Currently, commercially available impression materials include alginate, agar, condensation-type silicone rubber, and ordinary addition...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61K6/90A61K6/76A61K6/69A61K6/17
CPCA61K6/90A61K6/76A61K6/69A61K6/17C08L83/12
Inventor 吴峻岭张雪娇李健新蒋凤周传健
Owner SHANDONG UNIV
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