. 2019 Mar 31;28(1):19–25. doi: 10.5978/islsm.28_19-OR-02

Table 2: Determination of statistically significant difference between treatment groups using One-way ANOVA with Bonferroni's post-hoc test.

Multiple comparison between groups	Mean Difference	P-value	95% Confidence Interval
Multiple comparison between groups	Mean Difference	P-value	Lower bound	Upper bound
Phosphoric acid vs Er:YAG 80*	5.849	< 0.001	3.313	8.721
Phosphoric acid vs Er:YAG 120*	4.738	< 0.001	2.202	7.608
Phosphoric acid vs Er:YAG 140*	6.039	< 0.001	3.399	9.033

Er:YAG 80 vs Er:YAG 120	−1.109	0.800	−2.810	0.938
Er:YAG 80 vs Er:YAG 140	0.112	1.000	−1.666	2.257

Er:YAG 120 vs Er:YAG 140	1.239	0.644	−0.739	3.585

Asterisk (*) indicates a significant difference at P < 0.05.