| Popis: |
Total microscopic, total aerobic and anaerobic viable counts, as well as counts of aerobic and facultative streptococci, fusobacteria, spirochetes and Bacteroides melaninogenicus per g wet weight of gingival debris were determined in normal and periodontally-involved individuals. It was found that the total microscopic counts approximated 1.7 × 10 11 organisms per g wet weight, indicating that gingival debris is composed almost entirely of bacteria. Total viable counts performed aerobically averaged 1.6 × 10 10 , while total anaerobic viable counts averaged 4 × 10 10 . This suggests that the majority of the bacterial population is obligately anaerobic. All organisms which grew aerobically were facultative. Spirochetes were the only group of organisms enumerated which increased significantly in periodontal disease. |
