Table. 4.

Table. 4.

Changes in S-PHP index

Group A Group B Group C p



n M SD n M SD n M SD
1stgrade 17 2.41 0.71 a 28 2.96 0.69 a 38 3.21 0.87 a 0.003
2ndgrade 17 2.24 1.15 a 28 2.32 0.86 a 38 2.58 1.08 ab 0.007
3rdgrade 17 2.24 1.03 a 28 2.86 1.01 b 38 3.71 0.57 c <0.001
4thgrade 17 2.12 0.78 a 28 2.39 1.07 a 38 3.34 0.85 b <0.001

p : p-value by one-way ANOVA test, ab: same letter means no statistical difference at Duncan test, Group A: experimental group, Group B and Group C: comparative groups.

Int J Clin Prev Dent 2022;18:78-82 https://doi.org/10.15236/ijcpd.2022.18.3.78
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