From the works of Dr. George Goodheart and Borin
In the image it wanted to simplify and visualize the correlation in the movements, in particular the laterality.
Starting from this scheme, they are associated with the teeth muscles obtaining the sequence of the trend on the front and rear cross chains.
By grouping all the muscles represented in the teeth involved in the movement of laterality (in the picture left) and dynamic-functional balance between the arches. It emerged that represented muscles are all inserted into zones of kyphosis or lordsi and that in the movement are in opposition to one another.