Evaluation of the Effect of Water on Three Different Light Cured Composite Restorative Materials Stored in Water: An In Vitro Study

Table 4

The mean weight changes in the three groups during the first week of observation (initially day to the sixth day).

Groups	Paired difference					𝑝
	Mean difference	Std. error	95% confidence interval for the mean difference		𝑡
			Lower limit	Upper limit
Group A	14.600	2.614	9.129	20.071	5.585	<0.001
Group B	17.350	2.141	12.868	21.832	8.102	<0.001
Group C	11.900	1.499	14.184	23.576	7.939	<0.001