Intra oral anatomy for radiology (maxilla)

Question 1

How does the inter maxillary suture look on a radiograph?

Answer 1

A thin radiolucent line in the midline between teeth

Question 2

How does the anterior nasal spine look on a radiograph?

Answer 2

Appears as a radiopaque (white) v shaped line as the midline above the apices of the incisors

Question 3

Where are the soft tissues of the nose found on a radiograph?

Answer 3

Thy are superimposed over the anterior maxillary bone

Question 4

How do tissues look on a radiograph?

Answer 4

They cast shadows

Question 5

Describe where the openings of the incisal canal are found

Answer 5

At the nasal e their are 2 openings into the piriform fossa

At the oral end there’s 1 opening

Question 6

How does the nasal end of the incisive canal appear on a radiograph?

Answer 6

Can be seen as two separate ovoid radiolucencies just beneath the tip of the airier nasal spine

Question 7

How does the oral end of the incisive canal appear on a radiograph?

Answer 7

As a single radiolucency

Question 8

What can the incisive canal develop?

Answer 8

Cysts

Question 9

How do cysts appear on a radiograph?

Answer 9

They appear as large radiolucencies

Question 10

What can the oral end of the incisive canal be mistaken for and why?

Answer 10

Can be mistaken for an inflammatory cysts of a dead tooth because it is projected over the apex of the tooth

Question 11

How does the nasal septum appear on a radiograph?

Answer 11

Appears as a radiopaque line at the midline oft he anterior periapical

Question 12

what are found on either side of the nasal septum?

Answer 12

The anterior parts of the nasal cavity: the Pyriform fossa

Question 13

Describe the bone and mucosa of the inferior concave of terminance?

Answer 13

Thin bone but may have thick mucosa

Question 14

what is the inferior concave of terminance?

Answer 14

The bone that separates the pyriform fossa’s

Question 15

Name the only nasal terminant that is seen on radiographs

Answer 15

the inferior nasal conchae

Question 16

Why is the inferior nasal conchae the only nasal terminat seen on a dental radiograph?

Answer 16

Because it’s the largest and due to its position

Question 17

Where is the canine fossa located?

Answer 17

Anterior to the root of the canine

Question 18

How does the canine fossa appear on a radiograph?

Answer 18

As a slight relative radiolucency (quote I’ll defined and not visible every time)

Question 19

What is another name for the maxillary sinus?

Answer 19

Maxillary antrum

Question 20

What can the maxillary antrum (sinus) sometimes be mistaken for on a radiograph?

Answer 20

A cyst

Question 21

What can we use to differentiate the maxillary antrum (sinus) from pathology?

Answer 21

Y shape of Ennis

Question 22

How does the Y shape of Ennis work?

Answer 22

the stick of the Y is the lateral wall of the nose and the medial of the antrum
One prong of the Y is the floor of the nose
One prong of the Y is the floor of the antrum

Question 23

If you see a flat radioplaque line on a posterior periapical or a occlusal what is it likely to be?

Answer 23

The floor of the nose

Question 24

How does the floor of the nose appear on a radiograph l?

Answer 24

A flat radiopaque line

Question 25

How does the outline of the antrum usually appear on a radiograph?

Answer 25

As an angulating radiopaque

Question 26

What are found within the maxillary antrum?

Answer 26

Septum

Question 27

A radiopaque section seen above the molars May be what?

Answer 27

Zygomatic (cheek bone)

Question 28

How does the zygomatic buttress appear on a radiograph?

Answer 28

Looks like a hockey shaped margin

Question 29

What is the hamulus a part of?

Answer 29

The medial pterygoid plate

Question 30

What is found anterior to the hamulus?

Answer 30

The hamular nodge

Question 31

Where is recommended you spread you dentures to?

Answer 31

The hamular nodge as there is a lot of give in these areas

Question 32

What is the maxillary tuberosity?

Answer 32

The bone related to the last molar and the bone just posterior to the last molar

Question 33

Name a bone that can cast a shadow on the teeth when taking a periapical radiograph of the maxillary teeth

Answer 33

Coronoid process

Question 34

How is the nasal septum seen on a radiograph?

Answer 34

Seen as a radiopaque line

Question 35

How do neuro vascular channels loook on a radiograph?

Answer 35

As branching or circular radiolucencies

Question 36

What is the alveolar nerve a branch of?

Answer 36

The maxillary division of the trigeminal nerve

Question 37

What is the thin radiolucent line at the midline between teeth on a radiograph called?

Answer 37

The intermaxillary suture

Question 38

What is the radiopaque v shaped line found above the apices of the incisors on a radiograph called?

Answer 38

Anterior nasal spine

Question 39

What can be seen as two separate ovoid radiolucencies just beneath the tip of the antrum

Answer 39

Nasal spine

Question 40

Where are the pyriform fossa’s found?

Answer 40

On either side of the nasal septum