Table 2.
Prevalence of S. mutans and of the genes coding for the CBPs, cnm and cbm, in root canals of teeth with normal vital pulp (control), in root canals of asymptomatic necrotic teeth (ANT) and in root canals of symptomatic necrotic teeth (SNT) and their associated acute apical abscesses (AAA)
Sample sites | n | Bacterial DNA (number of positive cases/total) | S. mutans+ (number of positive cases/total) | cnm+ (number of positive cases/total) | cbm+ (number of positive cases/total) |
---|---|---|---|---|---|
Control | 10 | 0% (0/10) | - | - | - |
ANT | 10 | 100% (10/10) | 60% (6/10) | 66.6% (4/6) | 0% (0/6) |
SNT | 10 | 100% (10/10) | 70% (7/10) | 0% (0/7) | 0% (0/7) |
AAA | 10 | 100% (10/10) | 70% (7/10) | 0% (0/7) | 0% (0/7) |