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. Author manuscript; available in PMC: 2016 Jan 1.
Published in final edited form as: J Periodontol. 2015 Feb 12;86(7):906–916. doi: 10.1902/jop.2015.140546

Table 2.

Periodontal Measures Among Study Participants by AI Use

Periodontal Characteristic No AI use N=29 AI use N=29 P-Value
Mean ± SD* Mean ± SD*
Number of teeth 26.6 ± 1.6 26.1 ± 2.3 0.39
Number of plaque /biofilm sites 16.3 ± 6.6 55.4 ± 3.4 0.03
Number of calculus sites 6.4 ± 1.7 18.2 ± 3.0 0.001
Number of gingival bleeding sites 16.7 ± 12.3 27.8 ± 23.4 0.02
Pocket depth (mm) 2.0 ± 0.29 2.0 ± 0.27 0.95
Worst-site pocket depth (mm) 4.2 ± 1.4 4.6 ± 0.75 0.21
Attachment loss (mm) 1.4 ± 0.39 1.5 ± 0.75 0.56
Worst-site attachment loss (mm) 4.0 ± 1.0 5.2 ± 2.3 0.01
Gingival recession 0.28 ± 0.44 0.36 ± 0.67 0.06
Radiographic bone (Mean bone height) 2.69 ± 0.46 2.65 ± 0.63 0.06
Women with: n(%) n (%) P Value
Gingival Recession (GR), percent (%)
% with GR of 0-1 mm§ 8 (27.6) 2 (6.9)
% with GR of 2 mm§ 7 (24.1) 11(37.9)
% with GR of 3 mm§ 11(37.9) 10 (34.5)
% with GR of 4 mm§ 3 (10.3) 6 (20.7) 0.35
Periodontitis±
% with AL = 3 mm§ (Mild) 8 (27.5) 5 (17.2)
% with AL >=4 mm§ but < 6 mm (Moderate) 17 (58.3) 14 (48.3)
% with of AL >= 6 mm (Severe) 2 (6.9) 9 (31.0) 0.03
*

Standard deviation of the mean

Two sample t-test

Chi-square test of association

§

mm, millimeters

Worst site was calculated using interproximal values

±

One patient in each group did not have periodontitis resulting in an n=28 for this measure.