Abstract
The purpose of this research was to investigate the occurrence of bacteremia after tooth- and gingival brushing. Conventional aerobic culture methods were used, as well as prereduced anaerobic culture methods with a new adaptation of anaerobic agar culture medium to quantitate anaerobic bacteria in blood samples. Thirty patients with periodontitis were selected for the brushing study. As a base-line study, nine patients who were having extractions participated. Bacteria found in cultures of blood samples taken from the brushing group were compared with the bacteria found in cultures of samples taken from the extraction group. Bacteremia was found in five of the 30 individuals after brushing and in all nine patients after extractions. No microorganisms were detected in the prebrushing or presurgical blood culture control samples. The results indicate that the incidence of bacteremia after brushing in patients with periodontitis may be of serious consideration in the management of high-risk patients such as those with a history of rheumatic fever or congenital cardiac defects, or those who have intracardiac and vascular prostheses.
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