Abstract: A device for treating a dental tissue comprising (a) an ozone generator for generating an ozone containing gas, (b) a first pump in fluid flow communication with the ozone generator for generating a flow of ozone containing gas, (c) an applicator for multiple teeth having a surface suitable for forming with the hard and soft dental tissue of multiple teeth to be treated (d) a treatment chamber having an inlet orifice in fluid flow communication with the ozone generator and the first pump and having an outlet orifice, and (e) a second pump in fluid flow communication with the outlet orifice of the applicator for removing gas from the treatment chamber. The second pump has a second throughput and the first pump has a first throughput whereby the ratio of the second throughput to the first throughput is at least 1.5:1.

Abstract: A device for treating a dental tissue with a continuous flow of ozone containing gas, comprising (a) an ozone generator (2) for generating an ozone containing gas, (b) a first pump (1) being in fluid flow communication with the ozone generator for generating a flow of ozone containing gas, (c) an applicator (3) for multiple teeth having a surface suitable for forming with the hard and soft dental tissue of multiple teeth to be treated a treatment chamber having an inlet orifice being in fluid flow communication with the ozone generator (2) and the first pump (1) and having an outlet orifice, and (d) a second pump (5) being in fluid flow communication with the outlet orifice of the applicator (3) for removing gas from the treatment chamber, whereby said second pump (5) has a second throughput and the first pump (1) has a first throughput whereby the ratio of the second throughput to the first throughput is at least 1.5:1.

Abstract: Ready-to-use, packaged, dental composition curable by UV, light or laser beams, for the preparation of dental fillings, inlays, onlays, crowns, bridges, artificial teeth, dental protheses and implantates with a container, impervious for UV or light, which houses a dental composition in such a fashion that it is affected from the effects of UV or light during storage while it can be removed for use, whereby the dental composition comprises the following: a matrix polymerizable and/or curable to a duroplastic or thermoplastic dental resin by means of UV, light or laser beams, into which a micro-fine inorganic filler is incorporated, and into which filaments or a web in the form of a mat, a ribbon, a tube or a cord is embedded; as well as a tool for applying pressure during the use of the dental composition for the purposes of filling cavities.

Abstract: Device for accelerating the opening and/or the extension of aviation devices, such as canopy, square or gliding parachutes, among others, has an air space (4) at the base (7) and along the circumference of the canopy (2). The air space (4) has for example the form of a hose or of an air-impervious hem which is under high air pressure in operative conditions, so that when the wrapper is opened this air space stretches out in a very short time and the aviation device opens after a fall of only 20-30 m.