TABLE 3.

Comparison of conventional PCR and real-time PCR

Sample and patient no.	Conventional PCR result		Real-time PCR resultc
	Aaa	Pgb	% of Aa	% of Pg
Saliva
1	−	+	NDd	0.20 ± 0.02
2	+	−	0.19 ± 0.04	ND
3	+	+	0.22 ± 0.04	1.56 ± 0.06
4	+	−	0.20 ± 0.03	5.11 × 10−4 ± 1.16 × 10−4
5	−	+	ND	0.64 ± 0.02
6	−	+	ND	1.34 ± 0.13
7	+	+	0.11 ± 0.01	0.08 ± 0.00
8	−	+	ND	0.81 ± 0.06
9	−	−	ND	ND
10	−	−	ND	ND
Subgingival plaque
1	−	+	ND	1.33 ± 0.20
2	−	−	7.16 × 10−4 ± 0.47 × 10−4	ND
3	−	−	4.69 × 10−3 ± 0.45 × 10−3	ND
4	+	−	0.11 ± 0.03	ND
5	−	+	ND	0.38 ± 0.04
6	−	+	ND	6.40 ± 0.43
7	+	+	0.02 ± 0.00	0.20 ± 0.02
8	−	+	ND	1.10 ± 0.16
9	−	−	ND	ND
10	−	−	ND	ND

^aAa, A. actinomycetemcomitans.

^bPg, P. gingivalis.

^cData are expressed as means ± standard deviation (n = 3).

^dND, not detected.