Blum, CL, "The Effect of Movement, Stress and Mechanoelectric Activity Within
the Cranial Matrix," International Journal of Orthodontics, Spring 1987;
25(1-2): 6-14.

This study presents substantial research supporting the premise that:
(1) Cranial sutures and bones are capable of flexibility and slight
movement. (2) Mechanical stresses can affect the sutures on a short-term
basis. (3) Mechanical stresses can affect the sutures on a long-term basis.
(4) An interrelationship exists between cranial sutures and the structures
transmitting mechanical forces; this relationship has a matrix/holographic
organization. (5) Mechanical stresses within the cranial bones and sutures
are capable of creating a piezoelectric effect. This piezoelectric effect is
of a magnitude sufficient to create changes within the associated cranial
bones and soft tissues to affect enzymatic changes, osteoblastic/osteoclastic
activity and neuroelectric dynamics.

The author concluded that in light of the advances in orthodontics,
temporomandibular joint treatment, and cranial manipulative therapy, we must
view cranial motion as part of a dynamic and kinetic, physiological, cranial
matrix. The ability for cranial bones to move, or not move, plays a part in
the transmission of stress within the cranium and could have far reaching