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[Incidence of bacteremia following extractions--a double blind study on local disinfection using chlorhexidine].

In a randomised double-blind study the incidence of bacteremia after two minutes mouth rinsing with chlorhexidine 0.1% followed by tooth extractions was registered. A significant reduction of bacteremia could not be observed in comparison with mouth rinsing with physiological saline solution. Tooth extractions always require the preventive administration of antibiotics to patients known with high risk of endocarditis.