Design

Design Solution:

VMM standard size right plate
VMM standard size right plate

 

In order to maintain alignment between the mandible and maxilla, the vertical mandibulomaxillary (VMM) plates must be able to resist significant bending due to mastication muscle force

  • Bending of the VMM plates directly results in movement of the mandible since the mandible and plates are directly attached to each other

The VMM plates are modeled as cantilever beams

  • The maxilla is fixed in place and will not move
  • Mandible is treated as the unsupported end
  • Point load of 680 N is applied to mandible which was determined through muscle force calculations
  • Higher moment of inertia results in lower deflection
  • The design of the VMM plates will incorporate beams with the highest moment of inertia