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Durable dental material with improved transparent properties

A dental material and dental technology, which can be used in dental impression materials, medical preparations with non-active ingredients, dentistry, etc., and can solve the problems of insufficient opacity of dental materials.

Inactive Publication Date: 2014-11-12
HERAEUS KULZER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

EP0518454A2 discusses a dental material with zirconium dioxide having a particle size greater than 1 μm, the dental material has insufficient opacity

Method used

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  • Durable dental material with improved transparent properties
  • Durable dental material with improved transparent properties
  • Durable dental material with improved transparent properties

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0070] Measurement of abrasive properties

[0071] The wear behavior of dental materials was determined using a testing machine manufactured by the company Willytec / SD-Mechatronik. In general, abrasion and tearing of natural teeth or dental materials due to in vivo wear can result from a variety of mechanisms, such as abrasion due to antagonistic teeth, abrasion due to abrasive particles in chewed food, and / or wear and tear due to cleaning with toothbrush and / or toothpaste. The mechanism of wear and tear can be simulated under laboratory conditions by various simulation methods.

[0072] 3- Moderate abrasion (ACTA-method) is used to simulate the abrasion caused by chewing food: the material to be tested is placed in a rotating wheel with 12 Made, 240min -1 ) in the opposite direction at 180min -1 run. The two wheels are supported by bearings in a suspension of water and poppy seeds (Poppy Seed Abrasive, MA, 110 g poppy: 200 g water). The counter wheel is pressed ag...

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Abstract

A dental material comprising (a) at least one curable monomer and / or polymer component, and (b) at least one filler component comprising agglomerated oxide particles having a matrix and a doping component, whereby the matrix contains silicon dioxide and the doping component comprises zirconium dioxide, whereby the agglomerated oxide particles are incorporated into the cured polymer matrix of the dental material and are abraded only in layers together with the polymer matrix of the dental material during an abrasion process and do not chip away as individual, intact particles. Moreover, the cured dental material possesses high transparency.

Description

technical field [0001] The present invention discloses a dental material comprising (a) at least one curable monomeric and / or polymeric component; and (b) at least one filler group comprising agglomerated oxide particles Particles having a matrix and a dopant component, wherein the matrix comprises silica and the dopant component comprises zirconium dioxide, wherein the agglomerate oxide particles are incorporated into the curing polymer of the dental material In the matrix, and together with the cured polymer matrix of the dental material during abrasion, are abraded away layer by layer, without the agglomerated oxide particles being removed as individual monolithic particles. Furthermore, the cured dental material has a high transparency. Background technique [0002] In order to meet high esthetic requirements, dental composites, such as filling composites or veneer composites, need to have high transparency. Transparency is usually achieved through optimal adjustment o...

Claims

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Application Information

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IPC IPC(8): A61K6/027A61K47/04A61L27/42A61P31/02A61K6/884A61K6/90
CPCC08K3/36A61K6/083C08K3/22A61K6/06C08L33/08A61K6/61A61K6/76A61P31/02A61K6/40A61K6/889A61K6/30A61K6/831A61K6/90A61K6/887
Inventor 克劳斯·鲁珀特阿尔弗雷德·奥曼
Owner HERAEUS KULZER
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