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Microradiographic study of human temporomandibular disks obtained at autopsy.

. Ninety-six temporomandibular joint disks obtained at autopsy from subjects aged 1 day to 93 years of age and divided into three groups according to dental status were examined micro-radiographically for calcification. 
 
 
 
The central part of the disks showed no calcifications in individuals less than 30 years old, and only a few in persons above 30 years with a good denial status, while the occurrence was much greater in patients who had lost many or all of their teeth. In the peripheral part of the disk there were occasional calcifications already in children, and in elderly individuals the calcifications were more common, but the frequency did not appear to vary with the number of residual natural teeth or with the degree of arthrosis of the temporomandibular joint.