What is a common detergent ingredient in dentifrices that helps loosen debris?

Sodium lauryl sulfate (SLS) is a common ingredient in dentifrices, specifically serving as a surfactant and detergent. Its primary role is to reduce the surface tension of fluids, which helps to create foam when the toothpaste is used. This foaming action not only enhances the cleaning effect but also aids in loosening food debris and plaque from the surface of the teeth, making it easier to remove when brushing.

Unlike fluoride, which is primarily used for its cavity-prevention properties by remineralizing enamel, sodium lauryl sulfate directly contributes to the physical act of cleaning by helping to dislodge particles. Calcium phosphate is often included for its ability to remineralize enamel rather than for cleansing properties, while hydrogen peroxide is known for its whitening and antibacterial effects rather than being a detergent. These distinctions highlight sodium lauryl sulfate’s specific role in improving the efficacy of dentifrices in maintaining oral hygiene.