. 2019 Feb 26;11(1):16–22. doi: 10.4047/jap.2019.11.1.16

Table 2. TP values and t-test results between materials in 0.6 mm and 1.0 mm thickness.

Thickness (mm)/glazing	EM		ZP		P value
Thickness (mm)/glazing	Mean	SD	Mean	SD	P value
0.6/not glazed	30.37	1.31	33.03	1.79	.001^*
0.6/glazed	35.07	1.53	34.10	1.43	.162
1.0/not glazed	19.77	2.05	24.52	0.86	.000^*
1.0/glazed	21.76	2.75	24.72	1.12	.008^*

EM: IPS e.max Press, ZP: IPS e.max ZirPress.

^*Significantly different compared to test groups (P < .05)