Table II.

Comparison of biomechanical performances.

Group	Maximum load (N)	Bending strength (MPa)
IA	72.29±16.62	19.15±3.88
IB	77.89±14.26	21.19±3.79
IIC	53.89±17.32a,b	14.36±2.89b,c
IID	15.43±5.77a,b,d	6.52±3.03a,b,d

Data (n=10) are presented as mean ± standard deviation.

^aP<0.01 vs. the IA group;

^bP<0.01 vs. the IB group;

^cP<0.05 vs. the IA group;

^dP<0.01 vs. the IIC group.