highly significantP < 0.001
In all the intervals, a highly significant difference between pre- and post-brushing mean values was seen in both groups ( P < 0.001) [ Table 7 ].
In all the intervals, a highly significant difference between pre- and post-brushing mean values was seen in both groups ( P < 0.001) [ Table 7 ].
The t -value was 2.0 and P = 0.052, giving borderline significance.