domingo, noviembre 19, 2006

Relación y oclusión

OCLUSIÓN y RELACIÓN


RELACIÓN: Es referente a los componentes de la A.T.M. – Cóndilo, Menisco y Cavidad Glenoidea.

Relación Céntrica: Es estática. Los cóndilos se encuentran en la posición más posterior (protrusión funcional), media y superior, dentro de la cavidad glenoidea.


Relaciones Excentricas:

Propulsiva: Cóndilo y menisco se dezplazan hacia adelante en sentido anteroposterior.

Retropulsiva: Desde propulsión a relación céntrica.

Retrusiva: Cóndilo y menisco se desplazan hacia atrás en sentido anteroposterior.

Protrusiva: Desde retrusiva a relación céntrica.

Lateralidad: (tambien llamada movimiento de Bennett)
Derecha: Cóndilo y menisco Izquierdo, se traslada hacia abajo, adelante y adentro.
Cóndilo y menisco Derecho, se traslada hacia fuera, horizontalmente. Al trasladarse
horizontalmente puede ir adelante, atrás, arriba o abajo.
Izquierda: El cóndilo derecho funciona igual al izquierdo y, el izquierdo igual al derecho de lo
mencionado como lateralidad derecha.


OCLUSIÓN: Es referente a los arcos dentarios.


Oclusión Céntrica: Es estática. Posee el máximo de puntos de contacto dentarios.

Oclusión Excéntrica: . Contacto en todos los dientes, solo en anteriores o solo en posteriores.
Propulsiva: Desplazamiento mandibular hacia delante en sentido anteroposterior.
Lateralidad: Desplazamiento mandibular hacia la derecha o hacia la izquierda.
Balance de ambas arcadas: Se produce al efectuar movimientos de lateralidad.
Cúspides fundamentales: Son las palatinas superiores y las vestibulares inferiores.
Lateralidad derecha: Contactarán las de igual nombre en el lado derecho y las fundamentales en el
lado izquierdo, de equilibrio o de balance. La oclusión dentada natural puede ser o no ser
balanceada, generalmente es no balanceada.
Lateralidad izquierda: Lado izquierdo funciona como el derecho y lado derecho funciona como el
izquierdo, de lo mencionado como lateralidad derecha.

Ángulo de Bennett: Cóndilo hacia adentro, con respecto al plano sagital.

Movimiento de Bonwill: Cóndilo hacia delante en sentido anteroposterior (plano sagital).

Movimiento de Walker: Cóndilo hacia delante y abajo. Trayectoria cóndilea con respecto al plano horizontal.

Plano de oclusión o de orientación: Puede ser Superior o Inferior.
Desde: Punto Interincisivo. (Puede ser desde el ángulo mesio distal del incisivo, o desde
donde contactan ambos incisivos).
Hasta: Cúspide disto vestibular del 2º molar.

Curva de Compensación, sagital o de Spee: En sentido anteroposterior (sagital) que posibilita el constante
contacto dentario.
Desde: Cúspide de canino.
Hasta: Cúspide distal del 3º molar, contactando con las cúspides intermedias.
Son realmente 4 curvas, de acuerdo a las cúspides que contacte.
Vestibulares superiores.
Palatinas superiores.
Vestibulares inferiores.
Linguales inferiores.
Generalmente se hace referencia a las Vestibulares inferiores.

RHS

14 comentarios:

Unknown dijo...

Movimiento de Walker: Cóndilo hacia delante y abajo

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Unknown dijo...

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