Abstract: An oral composition for treatment of hypersensitive teeth in which the salty taste of the desensitizing salt, such as a potassium or strontium salt, is masked by baking soda, sodium bicarbonate.

Abstract: Phosphate-free oral compositions containing cationically charged colloids are effective to treat tooth hypersensitivity.

Abstract: A device for mounting a transparency. The device includes back and front sheets of transparent plastic. The outer edges of the sheets are continuously bonded together. In a preferred embodiment, an opaque coating on the front sheet defines one or more generally rectangular windows. Each window is variously sized to permit the transparency to be viewed therethrough but to prevent light from leaking around the transparency. The sheets are continuously bonded together along three sides of the window to form a pocket between the sheets for mounting the transparency. A slit is formed along a fourth side of the window for inserting the transparency into the pocket.

Abstract: A nonshrinkable, thermoplastic and injectable endodontic filling composition. The composition is a mixture of transpolyisoprene, either naturally produced as balata or gutta percha, or synthesized from isoprene, and a liquid castor ester platicizer. Alternatively, the mixture comprises transpolyisoprene, a liquid castor ester plasticizer and a liquid castor oil or dimethyl silcon fluid lubricant. The mixture is preferably a combination of the transpolyisoprene, the liquid castor ester plasticizer and the liquid castor oil or liquid dimethyl silicon fluid lubricant or both. The composition is compounded to form a highly thermoplastic material which is injectable at a clinically acceptable temperature with a manually operated injection system without shrinkage of the composition after placement in a dental root canal.

Abstract: A nonshrinkable, thermoplastic and injectable endodontic filling composition. The composition is a mixture of transpolyisoprene, either naturally produced as balata or gutta percha, or synthesized from isoprene, and a liquid castor ester platicizer. Alternatively, the mixture comprises transpolyisoprene, a liquid castor ester platicizer and castor oil or dimethyl silicon fluid lubricant. The mixture is preferably a combination of the transpolyisoprene, the liquid castor ester plasticizer and the liquid castor oil or dimethyl silicon fluid lubricant or both. The composition is compounded to form a highly thermoplastic material which is injectable at a clinically acceptable temperature with a manually operated injection system without shrinkage of the composition after placement in a dental root canal.

Abstract: A toothpaste having high polishing and cleaning properties suitable for use in the removal of coffee and tea stains comprises about 10-35% of an abrasive system combined with a non-toxic paste, said abrasive system comprising a combination of anhydrous aluminum silicate and diatomaceous silica in a ratio of about 0.5:1-1.5:1, said toothpaste having a radioactive dentin abrasion index not in excess of about 150. The system provides excellent fluoride stability during storage and does not interfere with fluoride bioavailability.

Abstract: Certain ethoxylates have been found to exhibit concurrent activities of particular merit in the treatment of ectoparasitic infestations.

Abstract: A thixotropic, spoonable soft gel in an aerated or non-aerated multiphase composition of emulsified glycerides dispersed in a continuous phase of hydrocolloid and has an RVT Brookfield viscosity of about 100,000-500,000 centipoises at room temperature and a TD spindle speed of 2.5 rpm.

Abstract: A denture fixative composition contains as the active fixative a partially neutralized and crosslinked polyacrylic acid or a precursor combination of the polyacrylic acid, neutralizing agent(s) and crosslinking agent(s) which is adapted to form the active fixative, and at least one hydrophilic polymer, preferably, sodium carboxymethyl cellulose, hydroxypropyl guar or sodium alginate.