Table 4.

Investigated the Correlation Between Phe, DMFT indexes, and pH in case subjects

Investigated Parameters	2-Tailed Spearman’s rho	P
	r
DMFT and blood Phe	−0.009	.963
DMFT and salivary Phe	0.372*	.043
Salivary Phe and blood Phe	0.665**	<.001
pH and salivary Phe	0.787**	<.001
pH and blood Phe	0.539**	.002

DMFT, decayed, missing due to caries, and filled teeth; Phe, phenylalanine.

^*Correlation is significant at the .05 level (2-tailed).

^**Correlation is significant at the .01 level (2-tailed).