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Background data of the study group.
| Sucrose + Placebo (n = 20) |
Sucrose + Probiotics (n = 20) |
Xylitol + Probiotics (n = 20) |
Xylitol + Placebo (n = 20) |
|
|---|---|---|---|---|
| Gender, female/male | 16/4 | 16/4 | 14/6 | 13/7 |
| Age (mean, range) years | 24.2 (21–29) | 24.3 (20–32) | 24.6 (20–32) | 23.7 (20–29) |
| Dental professions * | 11/20 | 16/20 | 14/20 | 17/20 |
* Dental students, dental hygienist students, dentists, dental hygienists, dentist’s assistants.
