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Interproximal teeth cleaning apparatus with an air-driven spray

A gap and tooth technology, applied in the field of tooth cleaning equipment, can solve problems such as difficult to operate effectively, time-consuming flossing, bleeding gums, etc.

Inactive Publication Date: 2010-09-15
KONINKLIJKE PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, flossing is time-consuming, often difficult to perform effectively and can sometimes be painful, causing gums to bleed

Method used

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  • Interproximal teeth cleaning apparatus with an air-driven spray
  • Interproximal teeth cleaning apparatus with an air-driven spray
  • Interproximal teeth cleaning apparatus with an air-driven spray

Examples

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Embodiment Construction

[0010] The apparatus described and illustrated herein produces a spray of liquid droplets that directly impinge on adjacent tooth crevice surfaces while simultaneously creating a thin film of liquid on the adjacent tooth crevice surfaces. The liquid can be water, or various other liquids with different viscosities. Apparatus for producing liquid droplet ejection are well known. An example is shown and described in published patent application WO2005070324 owned by the assignee of the present invention. The content of that application is hereby incorporated by reference. Typically, such devices produce a useful cleaning effect when the liquid droplets impact the tooth surface at a relatively narrow range of 90° relative to the tooth surface. These devices include gas-assisted implementations to accelerate liquid droplets by using high velocity gas.

[0011] The micro-droplets impact the tooth surface and remove the biofilm plaque present on the tooth. The shear stress requi...

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PUM

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Abstract

Interproximal cleaning is produced by a combination of fluid droplets producing a certain impact shear stress on the interproximal biofilm combined with shear stress created by the effect of air driving a liquid film (18, 20) in the interproximal surfaces. The shear stress created by the droplets decreases with the depth of the interproximal space, while the shear stress produced by the air-driven liquid film increases with interproximal depth. The combined shear is at least as great as the shear stress necessary to remove biofilm from the interproximal surfaces.

Description

technical field [0001] The present invention relates generally to tooth cleaning devices using liquid droplet jets, and more particularly to the cleaning of crevice areas of teeth with such jets. Background technique [0002] Effective cleaning of interdental spaces, ie, the spaces between adjacent teeth, is notoriously difficult to achieve. In general, regular flossing produces the best crevice cleaning results. However, flossing is time consuming, often difficult to perform effectively and can sometimes be painful, causing gums to bleed. [0003] Accordingly, it would be desirable to have an effective crevice cleaning device that produces crevice cleaning that is at least as good as flossing. Contents of the invention [0004] Accordingly, disclosed herein is an apparatus for cleaning interdental areas comprising: a source of liquid droplets; a gas source for driving the liquid droplets toward the teeth; and a nozzle for directing the liquid droplets into the interdent...

Claims

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Application Information

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IPC IPC(8): A61C17/02
CPCA61C17/02
Inventor J·W·格雷兹P·C·杜伊尼维尔德
Owner KONINKLIJKE PHILIPS ELECTRONICS NV
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