Image Analysis 3

EXAM 7/23

Modified Waters (modified parietoacanthial)

What are the special projections for facial bones?

Lateral

Waters Method (Parietoacanthial)

Caldwell Method (PA)

What are the basic routine projections for facial bones?

Mandible

What bone is this?

Coronoid process

A

Neck

B

Condylar process

C

Mandibular notch

D

Ramus

E

Gonion

F

Body

G

Mental Foramen

H

Mental Protuberance

I

Symphysis

J

Alveolar portion

K

Lateral Facial bones

What projection is this?

Anterior nasal spine

A

Alveolar process of the maxilla

B

Alveolar process of the mandible

C

Mentum

D

Body of the mandible

E

Gonion

F

Ramus of mandible

G

Mandibular notch

H

Neck of the mandibular condyle

I

Condyle or head of the mandible

J

EAM

K

Greater wings of the sphenoid

L

Lesser wings of the sphenoid

M

Ethmoid sinuses

N

Body of the maxilla (maxillary sinus)

O

Parietoacanthial Waters method facial bones

What projection is this?

Anterior nasal spine

A

Zygomatic arch

B

Condyle or head of mandible

C

Mastoid process

D

Gonion

E

Foramen magnum (dens within it)

F

Zygomatic prominence

G

Body of the maxilla (maxillary sinus)

H

Bony nasal septum

I

PA axial (Caldwell)

What projection is this?

Frontal Sinus

A

Crista galli

B

Petrous Ridge

C

Ethmoid sinus

D

Infraorbital margin

E

Lateral

Waters Method (Parietoacanthial)

What are the routine nasal bone projections?

PA axial (Caldwell)

Superinferior tangential (axial)

What are the special projections for the nasal bones?

Lateral nasal bones

What projection is this?`

Nasofrontal suture

A

Nasal bone

B

Anterior nasal spine

C

Frontal process

A

zygomatic process

B

body of maxilla

C

Alveolar process

D

Acanthion

E

Anterior nasal spine

F

Crista galli

A

Superior nasal conchae

B

Cribriform plate

C

Sphenoid bone

D

Vertical portion of palatine

E

Horizontal portion of palatine

F

Palatine process of maxilla

G

Inferior nasal conchae

H

Middle nasal conchae

I

Right palatine process of right maxilla

A

Left palatine process of left maxilla

B

Horizontal portions of palatine bones

C

Pterygoid hamulus of sphenoid

D

7

How many bones make up each orbit?

Frontal

Sphenoid

Ethmoid

Maxilla

Zygoma

Lacrimal

Palatine

What bones make up each orbit?

Optic foramen

A

Sphenoid strut

B

Superior orbital fissure

C

Greater wing of sphenoid

D

Palatine

E

Inferior orbital fissure

F

Zygoma

G

Maxilla

H

Orbital surface of maxilla

I

Ethmoid

K

Frontal

L

Lacrimal

J

Maxilla and palatine

What facial bones make up the hard palate?

Blowout

Tripod

LeFort

Coutercoup

What are the 4 types of facial bone fxs talked about in class?

Floor of the orbit is fx

Direct impact of a baseball most common

What is a blowout fx?

Maxillar fx where the bone becomes free floating, traumatic blow to the cheek

What is a Tripod fx?

Severe bilateral horizontal fx of the maxilla

What is a LeFort fx?

Fx occurs on the opposite side of trauma

What is a coutnercoup fx?

Yes, tooth infection can lead to bone infection and osteomyelitis when it spreads to the maxilla or mandible

Can osteomyelitis occur from a dental abscess?

chronic sinusitis

What is an example of a cause of secondary osteomyelitis?

Multiplanar reconstruction

What does MPR stand for?

14

How many facial bones in total?

Maxillary bones

What are the largest immovable bones of the face?

Mouth

Nasal Cavity

Orbit

What three cavities do the maxillary bones form?

To warm, moisten and cleanse inahaled air

Why is the inferior nasal conchae covered with mucous membranes?

Ethmoid bone

The superior and middle pairs of nasal conchae are apart of what cranial bone?

Lacrimal bones

What are the thinnest and most fragile bones in the body?