Antibiotic Susceptibility Pattern of Aetiologic Agents of Bacteraemia Associated with Dental Extractions.

Abstract

The antibiotic susceptibility pattern of the aetiologic agents of bacteraemia following dental extractions was surveyed. Seventy-eight bacterial isolates were obtained, of which 61 (78.2%) were facultative anaerobes (including microaerophiles), and 17 (21.8%) were obligate anaerobes. Among the facultative anaerobes and microaerophiles, the most frequently isolated bacteria were species of Staphylococcus (24.4%), Streptococcus (20.5%), and á-haemolytic streptococci (12.8%); Bacteriodes spp. (10.3%) were the most frequently isolated anaerobes. The organisms were more sensitive to ciprofloxacin than to any other antibiotics as all but the S. aureus isolates (89.5%) were uniformly sensitive. The least effective was tetracycline. Only 7 (9.0%) of the 78 isolates were sensitive to this antibiotic.

Keywords: Dental extraction, Bacteraemia, aetiologic agents.