Abstract:
This application is directed to methods of assessing polymer deposition on dental surfaces using near infrared spectroscopy, providing a rapid and efficient method to screen for and identify optimal polymers for use in oral care formulations, (i) near infra red (IR) absorption of a dental substrate is measured in the absence of a polymer under test, and subsequently of the test sample comprising the dental substrate contacted with the test polymer. After washing or rinsing the test sample near IR of it is determined again (iii). The IR absorption of the test polymer itself is also measured (ii). Through the comparison of the three measurements (i), (ii), and (iii) the degree of deposition and retention of the test polymer on the test sample is determined.
Abstract:
Disclosed is a method of manufacturing a fluid gel, the method comprising adding metal cations to the gellant dispersion while retaining the pH at no greater than 3; and adding a pH modifying agent to the gellant dispersion to increase the pH of the gellant dispersion to greater than 3.
Abstract:
Described herein are oral care compositions comprising a surfactant system; a structuring agent, and a lipophilic agent; and methods of making and using the same.
Abstract:
Described herein are films comprising a zinc-containing compound and a film-stabilizing ingredient, for use in oral and personal care compositions.
Abstract:
Disclosed are anti-erosion oral care formulations and methods that provide erosion protection while maintaining adequate cleaning performance. The anti-erosion oral care formulations include a mucoadhesive polymer and a zinc compound or salt that becomes more soluble at acidic pH.
Abstract:
An oral care composition and method are described in which the composition includes a film or a plurality of film fragments entrained in a carrier. The film or plurality of film fragments comprises zinc oxide. The composition and methods provide benefits including increased stability and shelf-life ensuring the delivery and bioavailability of zinc oxide.