[Table/Fig-1]:
General characteristics, total N=46*.
| N* | % | ||||||
|---|---|---|---|---|---|---|---|
| Female | 17 | 37 | |||||
| Male | 29 | 63 | |||||
| Smoking regularly | 5 | 10.9 | |||||
| Perlo 2 positive† | 33 | 71.7 | |||||
| BL positive‡ | 17 | 37 | |||||
| BOP > 20%§ | 6 | 13 | |||||
| PPD1 | 28 | 60.9 | |||||
| PPD2 | 21 | 45.7 | |||||
| PPD3 | 16 | 34.8 | |||||
| Min. | 1st Qu. | Median | Mean | SD | 3rd Qu. | Max. | |
| VPI | 0 | 6.33 | 10.7 | 17.6 | 18.08 | 21.28 | 72.1 |
| Age | 15 | 15 | 15 | 15.78 | 0.92 | 17 | 17 |
| BOP | 0.6 | 4.2 | 8.8 | 12.17 | 13.15 | 14.08 | 68.5 |
| PPD | 0 | 0 | 1 | 4.24 | 6.92 | 4.75 | 32 |
*
one participant was excluded after discrepant gender check
†)
Perio 2 based on definitions given by Whaites E and Drage N 2013 [10]: irregularity of margin of the crestal bone, irregularity of angle between crestal margin and lamina dura, widening of the periodontal ligament space, and horizontal bone loss (BL); distance between alveolar crest and cemento-enamel junction more than 2 mm [19].
‡)
BL = distance between alveolar crest and cemento-enamel junction more than 2 mm