Both parts must withstand enormous pressures as people chew. 'About 10 million people in the United States alone suffer from TMJ dysfunction due to birth defects, trauma, or disease.' A clinical trial will soon begin in patients with severe birth defects. In patients with congenital defects or who have suffered accidental injuries, the jawbone is nearly impossible to replace. With this in mind, the team at Columbia University set out to find a better way to treat these problems.
There may be many factors leading to the collapse of the joint.
( z0 possible :ARG1 ( z1 factor :quant ( z2 many ) :ARG0-of ( z3 lead :ARG2 ( z4 collapse :ARG1 ( z5 joint ) ) ) ) )
(z0 / possible-01
    :ARG1 (z1 / factor
              :quant (z2 / many)
              :ARG0-of (z3 / lead-03
                           :ARG2 (z4 / collapse-01
                                     :ARG1 (z5 / joint)))))
There may be many factors leading to the collapse of the joint .
z1 :quant z2
z0 :ARG1 z1
z1 :ARG0-of z3
z3 :ARG2 z4
z4 :ARG1 z5