Three-Point Bending Tests of Zirconia Core/Veneer Ceramics for Dental Restorations

Table 2

Flexural strength and surface roughness for the four types of zirconia specimens.

Specimen type	Surface condition, Ra (𝜇m)	Flexural Strength (MPa)		Weibull parameters (MPa)
		Average	SD	Modulus	Characteristic strength
Type A	1.75 ± 0.47	688	100	8	729
Type B	1.27 ± 0.36	733	109	7	779
Type C	0.13 ± 0.03	982	75	15	1005
Type D	0.12 ± 0.03	991	46	22	1007