Table 2.
Frequency distribution of various grades of DPI (denture plaque index) scores with means compared among subjects of both groups.
| Frequency DistributionN (%) | Mean ± SD | Unpaired “t” Test |
Karl Pearsons Correlation Coefficient |
||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| S.No. | Scores | GP A (Control) (N = 75) |
GP B (Test) (N = 75) |
GP A (Control) (N = 75) |
GP B (Test) (N = 75) |
||||||
| 1 M | 24 M | 1 M | 24 M | 1 M | 24 M | 1 M | 24 M | Probable Value | (r) | ||
| 1 | Good | 4 (5.3) | 9 (12) | 52 (69.33) | 50 (66.67) | 2.92 ± 0.892 | 2.77 ± 0.887 | 1.38 ± 0.618 | 1.44 ± 1.187 | 0.0000 * | −0.0012 (NS) |
| 2 | Average | 23 (30.6) | 20 (26.67) | 18 (24) | 18 (24) | ||||||
| 3 | Poor | 27 (36) | 26 (34.67) | 5 (6.67) | 7 (9.33) | ||||||
| 4 | Very Poor | 21 (28) | 20 (26.67) | 0 (0) | 0 | ||||||
Abbreviations: N = Number, M = number of months, SD = Standard deviation, % = percentage, GP (Group); * denotes statistically significant differences between two groups at the value of (p < 0.05); NS = not significant. In the unpaired ‘t’ test the level of the degree of significance was determined on the value of p ˂ 0. 05. Degree of linear relationship between two variables was determined by the Karl Pearson correlation coefficient expressed as r.