Abstract: A dental appliance being adaptable to fit a range of variously sized dental arches composed of a polymeric material that preferably comprises a hydrophilic foam, in which a medicinal agent such as, for example, carbamide peroxide, in dry or hydrated form, may be incorporated or predispensed. In one embodiment of the invention, the appliance may be provided in packaging, or medicinal agent may be provided in a separate dispenser that minimizes or prevents permeation by water.

Abstract: A dental device for the treatment of dental arches and periodontal tissue addressing the drawbacks of the prior art, comprising a prefabricated dental appliance composed of a non-porous polymeric material having a trough for immersing the teeth of the dental arch, the dental appliance being adaptable to fit a range of variously sized dental arches, and a premeasured amount of bleaching and/or other dental agent, which may be predispensed within the trough of the disposable dental appliance. The dental appliance of the present invention may be packaged to enclose individual or multiple units. The predispensed dental agent may be predispensed within the packaged appliances, or be sealed in the trough of the dental appliance. Alternatively, the predetermined amount of dental agent may be packaged in a separate container located adjacent to the trough orifice so that the dental agent is capable of being directly expelled into the trough of dental appliance when the seal is opened.

Abstract: A device and method for localized application of a fluid to a small area of skin, which includes an ejection nozzle forming a passage with one or more apertures, a receptacle chamber forming a cavity around the ejection nozzle, the receptacle chamber being configured and affixed to the ejection nozzle such that fluid ejected from the ejection nozzle is capable of being confined within the receptacle chamber, an inflow duct, and an outflow duct. Fluids which may be applied according to the present invention may include escharotic fluids, alpha-hydroxy compounds, exfoliants, cleansing agents, and other medicinal and cosmetic agents.