[Anatomical and pathological study of the temporomandibular joint disk in Colombian individuals].
BACKGROUND
The temporomandibular joint is an oval fibrous plate that completely divides the joint and accommodates irregularities existent in the bone articular surfaces.


OBJECTIVE
To study the frequency of temporomandibular joint disk abnormalities among Colombian subjects.


METHODS
We studied 120 temporomandibular joint disks obtained from fresh cadavers arrived in the Instituto de Medicina Legal, in Cali Colombia. These were analyzed according to subject's dental status and age.


RESULTS
Nineteen percent of disks had small erosions. In 7.5% of disks there were wider erosions or perforations. Twenty six percent of discs were very thin and this alteration was seen mostly in people aged 50 years or older.


CONCLUSIONS
These results are intermediate between those who claim that disk perforations are rare and those who had shown tile opposite. The loss of dental pieces seems to be a risk factor leading to such disk perforation.
Ballesteros
L E
LE
Departamento de Ciencias Básicas, Facultad de Salud, UIS-Universidad Industrial de Santander, Bucaramanga, Colombia.
León-S
F E
FE
D000328:Adult; D000367:Age Factors; D002102:Cadaver; D003105:Colombia / Q000453:epidemiology; D006801:Humans; D007576:Jaw, Edentulous, Partially / Q000150:complications*; D008297:Male; D008875:Middle Aged; D012307:Risk Factors; D019224:Temporomandibular Joint Disc / Q000473:pathology*; D013705:Temporomandibular Joint Disorders / Q000453:epidemiology / Q000209:etiology / Q000473:pathology*