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Biomechanics Of The Mandible
1. "It may give us an insight into the factors
that determine mandibular bone structure, since loading
conditions are thought to play an important role in the
modeling and remodeling of bone"
2. "The first parts introduce some basic definitions and the general physical properties of bone, to
facilitate comprehension of the later parts, in which
mandibular biomechanics is discussed. In part 1, the
material properties of bone tissue, including stress,
strain, and strength, are summarized. In part 2, the influences of size, shape, and the amount and distribution of
bone tissue on the rigidity of a whole bone are discussed. Part 3 reports a survey of the available information on the material properties of mandibular bone tissue. In part 4, the deformations, stresses, and strains
occurring in the mandible during biting and mastication
will be summarized. Finally, in part 5, the mechanical
implications of the size and shape of the mandible are
3. "The ability of a bone to resist a particular load depends
on the type of loading. When a bone is loaded in compression, tension, or shear, the amount of stress (o) in a
particular bone cross-section is equal to the applied load
divided by the bone cross-sectional area, cf = L/A, where
L is the load and A the cross-sectional area (Fig. 3).
Hence, the larger the cross-sectional area, the smaller is
the amount of induced stress and the smaller the
amount of deformation (e ov/E, where E is the value of
the elastic modulus of the bone tissue;"
an increase in the cross-sectional
moment of inertia is more optimal to
sustain heavy loads (in the case of a
large force and/or a large moment arm)."
5. "As explained above, to be able to resist forces, bending,
and torsional moments applied to the mandible, not only
are the material properties but also the geometrical
design of the bone tissue important. The cross-sectional
geometry of the mandible has an important bearing on
the understanding of its biomechanics. As explained
above, the ability of the mandible to resist stresses and
strains greatly depends on the distribution of cortical
bone throughout the mandibular cross-section (Smith,
1983; Hylander, 1988). Knowledge about the amount and
distribution of bone tissue can provide insights into the
rigidity of a cross-section subjected to a variety of loads."
and strains are assumed to be important factors in the
regulation of the modeling and remodeling processes in
I assume quote 1 and 6 refer to wolff's law, which states that bone will adapt to loads which it is placed under.