title: Bacteremia following surgical dental extraction with an emphasis on anaerobic strains.
abstract: Our aim was to investigate bacteremia caused by surgical extraction of partly erupted mandibular third molars. From 16 young adults, bacterial samples were taken from the third-molar pericoronal pocket and post-operatively from the extraction socket, and blood samples were drawn from the ante-cubital vein up to 30 min after surgery. Of the subjects, 88% had detectable bacteremia-50% 1 min after the incision, 44% immediately after extraction. The respective percentages at 10, 15, and 30 min were 44%, 25%, and 13%. Blood cultures contained 31 species (74% anaerobes), with 3.9 +/- 2.6 species isolated per subject. Most prevalent were the anaerobes Prevotella, Eubacterium, and Peptostreptococcus sp. and the aerobes viridans-group streptococci and Streptococcus milleri group. Any species found in the blood was also isolated from the mouth, from 93% of the pericoronal pockets and from 43% of the extraction sockets. Surgical dental extraction clearly causes bacteremia of a high frequency and lasting longer than thus far assumed.
authors.affiliation: Department of Oral and Maxillofacial Diseases, Mikkeli Central Hospital, Porrassalmenkatu 35-37, FIN-50100 Mikkeli, Finland. ari.rajasuo@esshp.fi
authors.forename: A
authors.initials: A
authors.lastname: Rajasuo
authors.forename: K
authors.initials: K
authors.lastname: Perkki
authors.forename: S
authors.initials: S
authors.lastname: Nyfors
authors.forename: H
authors.initials: H
authors.lastname: Jousimies-Somer
authors.forename: J H
authors.initials: JH
authors.lastname: Meurman
mesh_terms: D000328:Adult; D016470:Bacteremia / Q000382:microbiology*; D001421:Bacteria, Anaerobic / Q000145:classification*; D016866:Bacteroidaceae Infections / Q000382:microbiology; D005051:Eubacterium / Q000302:isolation & purification; D005260:Female; D005888:Gingival Pocket / Q000382:microbiology; D016908:Gram-Positive Bacterial Infections / Q000382:microbiology; D006801:Humans; D008297:Male; D008964:Molar, Third / Q000382:microbiology / Q000601:surgery*; D010462:Peptostreptococcus / Q000302:isolation & purification; D018720:Prevotella / Q000302:isolation & purification; D013290:Streptococcal Infections / Q000382:microbiology; D034364:Streptococcus milleri Group / Q000302:isolation & purification; D013997:Time Factors; D014081:Tooth Extraction / Q000009:adverse effects; D020390:Tooth Socket / Q000382:microbiology; D034363:Viridans Streptococci / Q000302:isolation & purification