Patent ID: 8419427

Claim:
A device for infiltration of approximal tooth surfaces, with a flexible planar element and with a holder into which the planar element is secured, characterized in that the planar element is a liquid-impermeable composite plastic film having two planar surfaces defined by two films, one of the planar surfaces having a surface area for taking up a liquid to be used for treatment, and in that the holder is a bow-shaped element with a web and with two lateral arms which extend from the web and which are arranged in an arc shape or U shape, to which the plastic film is connected in a liquid-impermeable manner, and said bow-shaped element has one or more channels, which lead from an opening in the bow-shaped element to the surface area of the film, where the liquid is to be taken up, wherein the planar element has one or more channels corresponding in number with the one or more bow-shaped element channels, the one or more planar element channels disposed between the two films and comprising continuations of the one or more bow-shaped element channels, the one or more planar element channels leading from the bow-shaped element to the surface area for taking up the liquid to be used for treatment.