Biaxial Flexural Strength of High-Translucence Monolithic Ceramics upon Various Thicknesses

Table 1

Mean, standard deviation (sd), 95% confidential interval (CI), characteristic strength (σ_o), and Weibull modulus (m) of the flexural strength (MPa) of Celtra^® DUO (Cc); Vita suprinity^® (Vc); and Bruxzir^® (Bc) ceramic at different thicknesses.

Thickness (mm)	Ceramic	Flexural strength	95% CI		σ0	m
		Mean ± sd	UB	LB
0.4	Cc	477.64 ± 88.23	428.78	526.51	515.03	5.89
	Vc	500.97 ± 76.36	458.68	543.25	534.09	7.18
	Bc	672.66 ± 107.54	613.11	732.22	719.05	6.83
0.6	Cc	496.39 ± 86.36	448.57	544.22	533.45	6.16
	Vc	506.70 ± 87.76	458.10	555.29	544.21	6.21
	Bc	655.93 ± 93.98	603.88	707.97	696.97	7.65
0.8	Cc	461.56 ± 57.00	429.99	493.13	489.57	7.77
	Vc	557.82 ± 62.78	523.06	592.59	587.53	9.20
	Bc	589.01 ± 63.63	553.78	624.25	617.01	10.33
1.0	Cc	450.26 ± 86.60	402.30	498.21	486.79	5.72
	Vc	543.76 ± 87.29	495.42	592.10	582.37	6.64
	Bc	624.89 ± 87.08	576.67	673.11	777.74	7.75
1.2	Cc	468.28 ± 83.65	421.96	514.61	503.99	5.99
	Vc	507.53 ± 86.09	459.86	555.21	544.72	6.35
	Bc	618.82 ± 83.36	572.66	664.99	654.55	8.27
1.4	Cc	472.45 ± 53.63	442.75	502.15	495.91	9.86
	Vc	502.46 ± 64.75	466.60	538.31	530.30	8.69
	Bc	672.64 ± 84.61	625.78	719.49	709.98	8.70
1.6	Cc	453.05 ± 72.50	412.90	493.19	484.50	6.80
	Vc	557.70 ± 80.91	512.89	602.51	592.33	7.64
	Bc	659.81 ± 122.89	591.76	727.86	715.51	5.38
1.8	Cc	462.67 ± 47.57	436.33	489.02	484.05	10.67
	Vc	527.04 ± 80.78	482.30	571.77	560.95	7.31
	Bc	632.79 ± 92.54	581.54	684.03	640.84	8.59
2.0	Cc	535.28 ± 84.33	488.58	581.98	571.47	6.98
	Vc	499.88 ± 57.35	468.12	531.63	524.97	9.75
	Bc	657.86 ± 73.17	617.34	698.38	690.46	9.88

LB: lower bound, UB: upper bound.