Analysis of Erosive Nature of Fruit Beverages Fortified with Calcium Ions: An In Vitro Study Evaluating Dental Erosion in Primary Teeth

Table 1

Inter- and intragroup comparisons of pH and calcium ion concentration in groups A and B.

Duration of exposure	Group A		Group B		-value^†
	Mean	SD	Mean	SD
pH
Baseline^a	6.96	0.10	3.92	0.09	<0.001
1 min^b	6.87	0.14	3.63	0.06	<0.001
2 min^c	6.94	0.07	3.64	0.07	<0.001
3 min^d	6.86	0.08	3.63	0.08	<0.001
-value^‡	0.002		<0.001
Post hoc test	a > b, d		a > b, c, d
Calcium ion concentration (mmol/L)
Baseline^a	7.88	0.64	4.16	0.37	<0.001
1 min^b	5.29	0.4	7.17	0.45	<0.001
2 min^c	5.77	0.33	4.99	0.40	<0.001
3 min^d	6.48	0.46	4.28	0.87	<0.001
-value^‡	<0.001		<0.001
Post hoc test	a > d > b, c		a, c, d

Note.^‡-value for intragroup comparisons and ^†-value for intergroup comparisons. An independent sample t-test was used for intergroup comparison and repeated measures ANOVA with post hoc Bonferroni test was used for intragroup comparison.