Abstract: A dental composition and method for bleaching vital and non-vital teeth, comprising a preselected, concentrated, aqueous solution of hydrogen peroxide and a nonaqueous component mixed to form an aqueous gel or paste, with the nonaqueous component including an inert silica gelling agent, an accelerator, a plasticizer and thickening agent, and means for establishing a substantially fixed time period for treating the teeth in response to the application of optical energy. A redox color indicator is used to transform from one color to another over the fixed time period to provide a visual indication that the treatment is completed, as well as an indication that the peroxide solution was active.

Abstract: A combination of a human nail and an artificial nail cover are coated by (1) first applying to the surface of the combination a monomeric aliphatic or cycloaliphatic hydrocarbon urethane dimethacrylate, a photo cure system and methacrylic acid and then curing in the visible light range and then applying a composition of the monomeric urethane or methacrylate, a polymeric aliphatic of cycloaliphatic hydrocarbon urethane acrylate methacrylate, a low viscosity polyglycol dimethacrylate and a photo cure system and curing in the visible range.

Abstract: Described herein are polyfunctional acrylate derivatives of caprolactone-polyols. The derivatives have low viscosity, are thermally stable and impart toughness properties to radiation cured coatings utilizing them.

Abstract: A composition containing critical proportions of 3 to 5 parts filler, 25 to 35 parts chewing gum base, gum chicle or SBR synthetic rubber, a minimum amount of emulsifier and from 40 to 62 parts of a water based emulsified phase. The emulsified water phase contains 3 to 6 parts sweetener and dissolved, inorganic mineral salts, such as sodium, potassium, calcium and magnesium chlorides and potassium phosphates, at a concentration of about 1% to 3% of the water phase, which is in the physiological range to ameliorate medical conditions such as xerostoma by controlling release of the dilute mineral salt solution during chewing thereof. When saliva is lacking, the liquid may contain dissolved salts higher than the physiological level, with or without 2 to 30 parts per million fluoride ions, so as to prevent demineralization of teeth. Under the direct supervision of a physician or dentist, the fluoride ions (NaF, SnF.sub.