Periodontal stage | Number of patients | Average | Standard deviation | 95% certainty | P value | |
---|---|---|---|---|---|---|
Lower limit | Upper limit | |||||
Gingivitis | 20 | 26.95 | 8.05 | 23.17 | 30.72 | 0.787 |
Stage 1 Grade A | 20 | 28.90 | 7.43 | 25.42 | 32.37 | |
Stage 2 Grade B | 20 | 29.05 | 6.84 | 25.84 | 32.25 | |
Stage 3 Grade C | 20 | 27.80 | 7.36 | 24.35 | 31.24 | |
Total | 80 | 28.17 | 7.34 | 26.54 | 29.80 |