Abstract: Compositions and methods of treating teeth with self-foaming fluoride-containing gels are disclosed. In preferred aspects, the method includes dispensing a self-foaming fluoride-containing gel from an aerosol container into the trough of a dental tray, placing the trough of the dental tray containing the self-foaming fluoride containing gel into engagement with a patient's teeth and allowing the gel to transform into a foam while the dental tray is in engagement with the teeth. The fluoride-containing gels include a water soluble fluoride component, an oil-in-water emulsifier, a micro-emulsion stabilizer, a surfactant, a micro-emulsion stabilizer and thickener and optionally a gel clarifying agent.

Abstract: A disposable dental tray including a unitary member formed of a flexible foam material defining a pair of hinged U-shaped tray portions configured to fit over the upper and lower teeth of the mouth and wherein each tray portion is defined by a base wall, a pair of end walls and inner and outer side walls. A first one of the tray portions is provided with a handle that extends outwardly from the tray portion, the handle including a main portion and an end portion. The second one of the tray portions is provided with a handle that extends outwardly from the tray portion, the handle including a through slot adapted to receive and securely retain the end portion of the other handle.

Abstract: A dental impression tray includes a tray portion anatomically contoured to fit over at least a part of a patient's upper and/or lower dentition of which an impression is to be obtained. The tray portion is loaded with impression material and situated opposite to the desired dentition part whereupon the patient bites into the soft impression material to form an impression of the dentition in the material. The tray portion is defined by at least one wall on which a plurality of vertically extending adjacent ribs are integrally formed defining a plurality of channels therebetween into which the impression material flows. The ribs have a dovetail cross-section so that the channels narrow or converge in the inward direction, i.e. towards the interior of the tray portion, to prevent the impression material from separating from the side wall in the inward direction as well as spreading laterally as and after the impression is taken to thereby provide a precise impression of the dentition.