Table 1: Means (S.D.) and Ranges for Investigated Variables

Variable Baseline Re-evaluation
Mean (S.D.) Range Mean (S.D.) Range
Age 57 (10) (32-79) - -
Smokers (%) 47 - 46 -
Number of teeth 23.1 (4.52) (8-30) 22.5* (5.07) (6-30)
Number of sites with periodontal pocket depths 5-6 mm 13 (8.6) (0-42) 6.5* (6.1) (0-28)
Number of sites with periodontal pocket depths 7-8 mm 4.7 (5.4) (0-24) 1.8*(3.6) (0-15)
Number of sites with periodontal pocket depths >8 mm 2.8 (7.8) (0-65) 0.83*(2.9) (0-25)
Plaque Index 46 (24) (2-100) 18* (16) (0-59)
Bleeding probing index 21 (15) (0-84) 7.8* (10) (0-75)
Interdental daily cleaning (%) 56 - 72* -

* significant difference (p<0.01) between baseline and re-evaluation.