Longitudinal study of dental caries incidence associated with Streptococcus mutans and Streptococcus sobrinus in patients with intellectual disabilities

Table 2 Caries prevalence in patients with S. mutans alone or in combination with S. sobrinus at baseline and after 1 year

Oraganism present			Mean (SD) DFT		Increase in DFT	Range
S. mutans	S. sobrinus	No. of subjects (%)	Baseline	After 1 year	Mean (SD)
+	-	19 (13.1)	6.47 (4.64)	6.95 (4.61)*	0.47 (1.22)*	0–5
-	+	26 (17.9)	5.96 (5.03)	6.42 (5.33)	0.46 (0.71)	0-2
+	+	95 (65.6)	8.65 (7.60)†	10.31 (8.13)* †	1.65 (2.04)*	0–9
-	-	5 (3.4)	0.60 (1.34)	0.60 (1.34)	0.00 (0.00)	0

Statistical significance between groups: *P<0.01, Mann–Whitney U-test; †P<0.001, Wilcoxon rank test.
Data for DFT scores are presented as mean (SD)

ISSN: 1472-6831