A 12-Week Assessment of the Treatment of White Spot Lesions with CPP-ACP Paste and/or Fluoride Varnish

Table 7

Results of one-tailed t-tests to compare the decrease in mean LF readings after each different treatment regime and the significance levels at which the null hypothesis is rejected.

Comparison treatment regimes	-critical ()	-experimental
Control < FV	1.682	0.219	0.414
Control < CPP-ACP	1.676	4.146	<0.001
Control < CPP-ACP-FV	1.672	2.939	0.002
FV < CPP-ACP	1.688	3.210	0.001
FV < CPP-ACP-FV	1.688	2.171	0.018
CPP-ACP < CPP-ACP-FV	1.680	1.466	0.075