International Journal of Dentistry

Research Article

Comparison of Oral Microbe Quantities from Tongue Samples and Subgingival Pockets

Table 3

Levels (median with Q25% and Q75%) of bacterial relative abundances (log10 transformed) from tongue scrapings across categories of mean probing depths (PD) or mean clinical attachment levels (CAL).


	Mean PD			Mean CAL
	1.56–2.18 mm ()	2.18–2.61 mm ()	2.61–3.91 mm ()	0.13–1.23 mm ()	1.23–2.54 mm ()	2.54–4.45 mm ()

P. gingivalis	0 (0, 5.1·10⁻⁶)	0 (0, 8.6·10⁻⁷)	0 (0, 2.7·10⁻⁵)	0 (0, 0)	0 (0, 5.8·10⁻⁶)	0 (0, 3.3·10⁻⁵)
A. actinomycetemcomitans	0 (0, 0)	0 (0, 0)	0 (0, 1.3·10⁻⁷)	0 (0, 0)	0 (0, 0)	0 (0, 1.5·10⁻⁸)
F. nucleatum	0 (0, 0)	0 (0, 0)	0 (0, 1.6·10⁻⁵)	0 (0, 0)	0 (0, 0)	0 (0, 1.4·10⁻⁵)
S. sanguinis	0 (0, 5.2·10⁻⁷)	0 (0, 2.3·10⁻⁶)	0 (0, 1.6·10⁻⁶)	0 (0, 1.5·10⁻⁶)	0 (0, 1.7·10⁻⁶)	0 (0, 2.1·10⁻⁶)
Archaea	2.67 (2.52, 2.80)	2.70 (1.09, 2.84)	2.42 (0.00, 2.79)	2.71 (2.54, 2.83)	2.61 (0.00, 2.80)	2.59 (0.00, 2.87)
% Archaea	0.015 (0.008, 0.024)	0.012 (0.002, 0.029)	0.007 (0, 0.019)	0.015 (0.008, 0.027)	0.010 (0, 0.023)	0.010 (0, 0.035)
Total bacteria	6.41 (6.24, 6.63)	6.48 (6.16, 6.74)	6.32 (6.10, 6.70)	6.48 (6.25, 6.66)	6.41 (6.19, 6.72)	6.30 (6.02, 6.66)
Sum score	0 (0, 7.0·10⁻⁶)	0 (0, 9.6·10⁻⁶)	1.0·10⁻⁵ (0, 5.5·10⁻⁵)	0 (0, 7.0·10⁻⁷)	1.2·10⁻⁷ (0, 1.3·10⁻⁵)	1.3·10⁻⁵ (0, 5.9·10⁻⁵)

The sum score was defined as the sum of relative abundances for P. gingivalis + A. actinomycetemcomitans + F. nucleatum; groups were determined as follows: 1st quartile, 2nd + 3rd quartile, and 4th quartile; in Mann–Whitney U tests versus 1st quartile; in Mann–Whitney U tests versus (2nd + 3rd) quartile.