Table 3.
Descriptive statistics of the differences between the pH values before and 5 min after salivary stimulation among the different groups.
| N | Mean | Std. Deviation | Std. Error | 95% Confidence Interval for Mean |
Minimum | Maximum | ||
|---|---|---|---|---|---|---|---|---|
| Lower Bound | Upper Bound | |||||||
| Safree | 15 | .3533 | .57305 | .14796 | .0360 | .6707 | -.40 | 1.40 |
| Nabtat Seif | 15 | .4400 | .54090 | .13966 | .1405 | .7395 | -.60 | 1.70 |
| Khalas | 15 | .4733 | .46363 | .11971 | .2166 | .7301 | -.40 | 1.40 |
| Sukkari | 15 | .4533 | .49116 | .12682 | .1813 | .7253 | -.70 | 1.30 |
| Segae | 15 | .3800 | .38582 | .09962 | .1663 | .5937 | -.20 | 1.00 |
| Grapefruit | 15 | 1.3733 | .47879 | .12362 | 1.1082 | 1.6385 | .60 | 2.40 |
| Cotton pellet | 15 | −.0733 | .12228 | .03157 | −.1410 | −.0056 | -.30 | .10 |
| Totald | 105 | .4857 | .60103 | .05865 | .3694 | .6020 | -.70 | 2.40 |