Biomedical Engineering Reference
In-Depth Information
50
40
30
20
10
Enamel
0
Dentin
Esthet-X
Grandio
Supreme XT
FIGURE 4.8
Graphic representation of diametral tensile strength (MPa) of
nanofilled composites in dentin and enamel shades.
Source: Balbinot and Mota (2006).
50
40
30
20
10
Mechanical load
0
Control
Esthet-X
Venus
Supreme XT
FIGURE 4.9
Comparative graph of diametral tensile strength of nanofilled
composites submitted up to 300,000 cycles of 80 N.
Source: Rigo and Mota (2009).
4.8.3
Flexural Strength and Flexural Modulus
The flexural strength (
Figure 4.10
) measurement was carried out according to the International
Standardization Organization specification 4049 due to the capability to test complex stress (compres-
sive, tensile, and shear) simultaneously using one sample.
The flexural modulus (GPa) is the relation of flexural strength to the deformation of materials. The
higher the flexural or elastic modulus of a material, the higher the energy required to deform it. In
