Cefalometría de Ricketts mejorada Flashcards

1
Q

Plano y ejes

A

Plano Frankfurt: Po-Or
Plano basocraneal: Ba-Na
Vertical pterigoidea
Eje facial: Pt-Gn
Plano facial: Na-Pg
Plano oclusal
Plano mandibular: Me-Ag
Eje condilar: Xi-DC
Eje del cuerpo mandibular: Xi-Pm
Plano dentario: A-Pg
Plano estético: En-Dt

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2
Q

Eje facial

A

NaBa-PtGn
±3
>93: braqui
<87: dolico

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3
Q

Profundidad facial

A

NaPg-PoOr
87±3
>90: prognatismo mandibular
>84: retrognatismo mandibular

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4
Q

Plano mandibular

A

AgMe-PoOr
26±4,5
>30,5: dolico o infraoclusión mandibular
<21,5: braqui o supraoclusión mandibular

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5
Q

Altura facial inferior

A

Xi, ENA, Pm
47±4
>51: dolico
<43: braqui

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6
Q

Arco mandibular

A

Xi,Pm,DC
26±4
>30: braqui, supraoclusión mandibular
<22: dolico, mordida abierta mandibular

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7
Q

Convexidad facial

A

Distancia punta A-NaPg
2±2 mm
>4: clase II esquelética
<0: clase III esquelética

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8
Q

Posición incisivo superior o inferior

A

IS: 3,5 ±2 mm
II: 1± 2,3
Aumentado: protrusión
Disminuido: retrusión

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9
Q

Inclinación IS o II

A

IS: 28±4
II: 22±4º
Aumentado: inclinación coronolabial
Disminuido: inclinación coronolingual

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10
Q

Posición MS

A

(Edad +)±3
Aumentado: clase II molar- mesializado
Disminuido: clase III molar- distalizado

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11
Q

Protrusión labio inferior

A

-2±2 mm
Aumentado: protrusión labial
Disminuido: retrusión labial

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12
Q

Profundidad maxilar

A

NA-PoOr
90±3
>93: maxilar prognático o hiperplásico
<87: maxilar retrognático o hipoplásico

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13
Q

Cono facial

A

NaPg-AgMe
68±3,5
Aumentado: braqui
Disminuido: dolico

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14
Q

Altura maxilar

A

CF,Na, A
53±3
aumentado: supraoclusión
Disminuido: infraoclusión

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15
Q

Altura facial total

A

BaNa-XiPm
60±3º
>: dolico
<: braqui

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16
Q

Longitud cuerpo mandibular

A

Distancia Xi-Pm
>: hiperplasia
<: hipoplasia