[Microbiological studies in maxillofacial inflammations].

297 materials from 446 patients with pyogenic infections were microbiologically evaluated. It was stated that Staphylococcus aureus is still the main causative organism (in spite of a downward tendency) and that its penicillin resistance is again increasing. The other gram-positive cocci occurred less frequently as pure cultures and more often as mixed cultures. The gram-negative germs increased with the increase in sensitivity to chemotherapeutical agents. 159 materials remained sterile. It must be assumed that this is in part attributable to anaerobes so far not determined. These results permit to draw the following practice-relevant conclusions: The territorial resistogram determines the use of chemotherapeutical agents; and it seems advisable not to employ penicillin in outpatient practice. Where the use of an antibiotic is indicated, treatment with oxytetracycline or gentamycin should be started.