Table 4.

Subject demographics and their periodontal health.

N	25
Female/Male	17/8
Age in years, mean (SD)	21.5 (1.9)
DPSI*
1	1
2	11
3−	13
BOMP**, mean (SD)	1.15 (0.33)

^*Dutch periodontal screening index (Mantilla Gomez et al., 2001).

^**Bleeding on marginal probing (BOMP) at baseline (van der Weijden et al., 1994a,b; Lie et al., 1998).