Odorigenic gram-negative anaerobes in human gingival crevices were significantly decreased for up to 120 minutes after rinsing with an antiseptic mouthwash. This observation parallels clinical measurements of the antiseptic effect on oral malodor and suggests that its odor-decreasing properties are related to its antimicrobial action in the mouth.
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Pianotti et al. (1978) studied this question.
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