Bacteria in root canal pathosis:
a. Mixed anaerobe and aerobe. ***
b. Single obligate anaerobe.
c. Aerobic.
d. None of the above.
When intact teeth with necrotic pulps were cultured, over 90% of the bacteria were strict anaerobes. Because bacteria isolated from root canals are usually a subgroup of the bacteria
found in the sulcus or periodontal pockets, it is believed that the sulcus is the source of bacteria in root canal infections.
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Endodontics