[Skull deformities following unilateral mandibular dysfunction.  1.  General review of secondary changes]. 
Communications 1 to 5 will deal with the significance of the masticatory muscles as a local factor affecting the shaping of the skull.  The reports are based on experiments with dogs (Beagles) on which unilateral partial resection of the mandible was performed at different ages.  The animals were slaughtered one year after the operation.  1st Bulletin: More or less severe scoliosis was observed in all skulls and proved to be the principal secondary change.  The deviation was found to be particularly great in the region of the viscerocranium in all cases.  Other findings include a flattening of the zygomatic arch and the linea temporalis on the operated side, close spacing of the front teeth, and deformation and reduction in size of the temporomandibular joint socket.