Abstract
Oral delivery and retention of zinc and triclosan were measured in man after use of an anti-plaque dentifrice containing these antibacterial agents. Triclosan (25% of the dose) and zinc (24%) were retained in the mouth immediately after toothbrushing and a single mouthrinse. Salivary concentrations fell from 7ṁ5 μg g−1 (triclosan) and 7ṁ0 μg g−1 (zinc) after 5 min to 0ṁ5 μg g−1 (triclosan) and 1ṁ2 μg g−1 (zinc), 2 h after brushing.