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Revista médica de Chile

versão impressa ISSN 0034-9887


BALLESTEROS A, Luis E  e  LEON-S, Fidias E. Anatomical and pathological study of the temporomandibular joint disk in Colombian individuals. Rev. méd. Chile [online]. 1999, vol.127, n.12, pp.1469-1474. ISSN 0034-9887.

Background: The temporomandibular joint is an oval fibrous plate that completely divides the joint and accommodates irregularities existent in the bone articular surfaces. Aim: To study the frequency of temporomandibular joint disk abnormalities among Colombian subjects. Material and 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.

Palavras-chave : Centric relation; Dental arch; Temporomandibular joint.

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