Relevant Competitive Tests:
Electron microscopic examination of the bacterial flora of necrotising ulcerative gingivitis indicates the presence of microorganisms within non-necrotic tissues in advance of other bacteria. The organisms involved are______________?
A.\tCocci
B.\tSpirochetesCorrect Answer
C.\tBacteriophages
D.\tFilamentous rods
Correct Option: B.\tSpirochetes
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