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Incidence and bacteriology of bacteremia associated with various oral and maxillofacial surgical procedures.

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Department of Oral and Maxillofacial Surgery, Kanazawa University Graduate School of Medical Science, Kanazawa, Japan.



The aim of this study was to determine the incidence and bacteriology of bacteremia associated with various oral and maxillofacial surgical procedures.


A total of 237 patients who underwent oral and maxillofacial surgery were included in this study. Blood samples were obtained for bacteriological examination immediately after the essential steps of the surgical procedure had been performed.


Bacteremia was detected in patients who underwent surgery for tumor, infection and trauma, and surgical reconstruction of jaw. In particular, decortication for osteomyelitis and tooth extraction resulted in a higher incidence of bacteremia compared with other surgical procedures. The incidence of bacteremia was not affected by oral hygiene, gingival inflammation, blood loss, and duration of surgery. Furthermore, concerning tooth extraction, there was no statistical difference in the incidence of bacteremia with respect to the number of teeth extracted and the method of extraction. Extraction of teeth with odontogenic infection (periodontitis, periapical infection, and pericoronitis) did however produce a significantly increased incidence of bacteremia compared with infection-free teeth (P < .01). Viridans streptococci were the predominant group of bacteria isolated from the bacteremias.


Oral and maxillofacial surgery involving transoral incision produces bacteremia, regardless of the extent and degree of surgical invasion. In particular, surgical procedure at infected sites is more likely to result in bacteremia compared with infection-free sites.

[Indexed for MEDLINE]

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