RESUMO
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 subjectÕs dental status and age. Results: Nineteen percent of disks had small erosions. In 7,5 percent 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
Assuntos
Humanos , Disco da Articulação Temporomandibular/anatomia & histologia , Colômbia , Arco Dental/anatomia & histologia , Disco da Articulação Temporomandibular/anormalidades , Relação CentralRESUMO
El propósito de este estudio fue determinar la posición del disco de la articulación temporomandibular (ATM), y la asociación del desplazamiento discal con el estado dental. Para este objetivo, se estudiaron 60 discos de la articulación temporomandibular, extraídos de especímenes cadavéricos frescos, mediante abordaje a través de la fosa craneal media. Con edades comprendidas entre 20 y 85 años, con estado dental catalogado como dentado, parcialmente dentado y edéntulo. Se encontró que la normal o superior se observó en 44 articulaciones (73.3 por ciento) y en 16 articulaciones (26.7 por ciento) el disco se halló desplazado. El mayor desplazamiento se encontró en los sujetos edéntulos (44.5 por ciento), mientras que en los especímenes dentados el desplazamiento se redujo al 15.7 por ciento...