CEFALOMETRIA
description
Transcript of CEFALOMETRIA
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Angela Paola Sanchez orozco
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es el nombre que se da a las medidas que se obtienen del
cráneo humano, por lo general realizadas por radiografías
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Estudio del crecimiento facial: repetición y reproducción de las estructuras del paciente. Superposición de trazados para estudiar su
crecimiento.
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Diagnóstico de posibles patologías especiales, tales como dilaceraciones, traumatismos.
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Diagnóstico de anomalías cráneo-faciales (clase II, clase III…)
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Utilizando un criterio meramente clínico, a la hora
de llevar a cabo una cefalometría, el profesional
debería conocer los siguientes aspectos:
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radiografía extra bucal, se trata de una radiografía tomada desde fuera de la boca y a
una distancia determinada.
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Para realizar la telerradiografía, la cabeza del paciente se orienta en el espacio como un
cuerpo sólido, es decir, mediante tres planos o ejes que confluyen en el centro.
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Las arcadas dentales están en el intercuspidazion máximo
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Los labios tienen que ser guardados en la posición natural
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S:Sella: centro geométrico de la silla turca en al punto medio de su concavidad.
A:punto mas profundo de la concavidad anterior del hueso maxilar. N: Nasion: punto de unión entre las suturas Internasal y frontonasal Sutura Frontonasal
B:punto más posterior de la concavidad anterior del hueso mandibular
o: oregon, punto inferior de la orbita
SNA: la espina nasal anterior
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LINEA S-N PLANO BOLTON
PLANO FRANKFORT HORIZONTAL (FH).PLANO FACIAL.
EJE FACIAL.EJE CONDILEO.
EJE DEL CUERPO DE LA MANDIBULA.LINEA APo.LINEA E.
EJES INCISALES.
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Representa la base anterior del craneo.
S: Silla Turca.
N: Sutura Frontonasal.
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Condilos del
occipital
N:Nasion
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P:PORIONMEATO
AUDITIVO EXT
O:ORBITAL
PUNTO INFERIOR DE
LA ORBITA
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ENPENA
Espina nasal posterior
Espina nasal anterior
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OCLUSION POSTEROR DE LOS MOLARES Y PREMOLARES
PERMANENTES O MOLARES TEMPORALES
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Go:
Gonion
Gn:Gnation
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LINEA S-NSN
PLANO FRANKFORT HORIZONTALPO
PLANO BOLTON
C.O
PLANO PALATINO E N AENP
PLANO OCLUSALPLANO MANDIBULAR
Go
Gn
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nagsion
pogonion
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REPRESENTA LA DIRECCION DEL CRECIMIENTO MANDIBULAR
NINTERSECCION
DEL PLANO FACIAL
INTERSECCION DEL PLANO
MANDIBULAR
GNATIONGnGn
PTERIGOIDEO N
PT
Go
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CENTRO DEL CONDILO
MANDIBULAR
CENTRO DE LA RAMA DE
LA MANDIBULA
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EXTENSION DEL CUERPO
DE LA MANDIBULA
CENTRO DE LA RAMA DE
LA MANDIBULA
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Linea maxilo mandibularA
Po
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Punta del tejido blando de la
nariz
Punta del tejido blando del menton
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Ejes largos de los
incisivos centrales sup e inf.
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Mi perrito kraken