The topical application of a liquid rinse before brushing as an aid in the mechanical removal of supragingival plaque is a novel idea. Since the introduction of the first prebrushing rinse there has been a rapid increase in the number of generic products that claim to physically loosen or remove plaque. Prebrushing rinses usually contain a plethora of ingredients, and it is not known which constituent is the active chemical. It has been suggested that sodium lauryl sulfate acts as a detergent to dislodge or loosen the plaque on teeth (Table 42.1). When prebrushing rinses were tested against placebo rinses, prebrushing rinses appeared to have no effect on plaque reduction.
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