Abstract
Statistics of the isolated organisms were observed as the oral infections treated at the department of oral surgery in Tokai University Hospital in recent 6 years. Samples were gathered by means of needle aspiration from the closed abscesses. The results were as following 4 facts.
1. Isolated organisms were total 1, 446 strains out of 800 cases.
2. Alpha-Streptococci, Peptococci, Peptostreptococci, and Bacteroides were major detected, but K. pneumoniae, K. oxytoca, E. coli, Citrobacter and Serratia marcessens were rarely detected organisms.
3. Aerobe and Anaerobe ratio was much the same. (aerobe: 45%, anaerobe: 51.5%) .
4. In the antimicrobial sensitivity test, α-Streptococci, Peptococci, Peptostreptococci, and Bacteroides have high sensitivity to both parenteral and peroral Pcs and parenteral Cefems. But cephalexin was lower sensitivity compared with other Pcs and Cefems. Three agents of aminoglycosides have lower sensitivity in the 13 kinds of discs. (PCG, ABPC, SBPC, CEX, CER, CEZ, KM, DKB, GM, CP, TC, EM, LCM.)
