Radiologie mandibulara si maxilara

7/28/2019 Radiologie mandibulara si maxilara

1/5

1. 1. Condyle

2. Neck of mandible

3. Coronoid process

of mandible

4. Ghost image of

body of mandible

5. Mandibular(Inferior alveolar)

canal

6. Mandible (inferior

border)

7. Shadow of

vertebrae

8. Mental foramen

9. Mandibular fossa

10. Angle of mandible

11. External oblique

ridge

12. Sigmoid

(Mandibular) notch

Identify landmarks

2. 1. Images not as

sharp as

bitewings/periapicals

2. Geometric

distortion

3. Shadows and

"ghost" images

4. Can be overused,

leading to excessive

exposure

List four weaknesses of panoramic

radiographs.

3. 1. Incisive foramen2. Tip of nose

3. Lateral fossa

4. Nasal fossa

5. Nasal septum

6. Border of nasal

fossa

7. Nasal spine

8. Median palatine

suture

Identify landmarks

4. 1. Inferior border

of maxillary

sinus

2. Maxillary

sinus

3. Zygomatic

process ofmaxilla

4. Septum of

maxillary sinus

5. Zygoma

(Zygomatic bone)

6. Inferior border

of zygomatic arch

Identify landmarks

5. 1. Lip line

2. Mental ridge

3. Genial tubercle

4. Lingual

foramen5. Inferior border

of mandible

Identify landmarks

6. 1. Maxilla has

fine, uniform

trabeculae while

the mandible has

coarse,

randomly-

oriented

trabeculae

2. The medullary

spaces are small

while the

mandibular

spaces are large

(when compared

on the sameperson)

Explain the difference in bone structure

between the maxilla and mandible

concerning:

1. Appearance of trabeculae

2. Appearance of medullary spaces

Radiology Lecture 06 - Panoramic LandmarksStudy online at quizlet.com/_63p2f


2/5

7. 1. Nasal fossa

2. Border of

nasal fossa and

maxillary sinus

(Inverted "Y")

3. Maxillary

sinus

Identify landmarks (except for #4)

8. 1. Oblique ride

2. Mylohyoid

ridge

3. Mandibular

canal

4.Submandibular

fossa

Identify landmarks

9. 1. Real images

2. Ghost images

only

3. Real and ghost

images

4. Double real

and ghostimages

What types of images may be produced

from the:

1. Vertical line area

2. Horizontal line area

3. Combined line area

4. Center area

10. 1. Reduced

patient exposure

when trying to

view entire oral

region

2. Good overall

"screening"

technique

3. Time saving

tool

List two benefits of panoramic

radiographs.

11. 2. Nutrient canal

3. Nutrient

foramen

Identify #2 & #3

12.A: Hard Palate

B: Hyoid Bone

Identify A & B

13.Ala-tragus line When taking a pan, this anatomical

landmark must be parallel with the floor.

14. Because it is

being moved by

orthodontia

(brackets and

wires seen along

crowns).

Why is the PDL so wide?

15. Because the

tooth was just

recently

extracted.

Why is the lamina dura still visible here?


3/5

16. Cancellous;

trabeculae,

bone; medullary

spaces, bone

marrow

The alveolar bone shown can also be

called __________ bone. The

radioopaque segments are termed

_________ and contain __________,

while the radiolucent spaces in-between

are termed _________ and contain

_________.

17. External oblique

ridge

Identify

18. False. Ghost

images, while

larger and more

blurry, are not

mirror images.

They are

oriented the

same way as

their real

counterparts.

T/F: A ghost image is a larger, more

blurry, mirror image of the real object.

19. Fixed or 3-point

rotation;

continuously

moving center of

rotation

Older machines used a __________

center of rotation while the new machines

use a __________ center of rotation.

20. Focal trough or

Image layer

It is important to keep your object within

the __________ so that anatomicalareas of interest are shown with the

greatest sharpness.

21. Genial tubercle

Identify

22. Ghost images These are produced when an object is

located between X-ray source & center of

rotation.

23. In the posterior

mandible

Where in the mouth are the medullary

spaces the largest?

24. Inferior border

of maxillary

sinus

Identify line

25. Mandibular

(lingual) tori

Identify radioopacity

26. Mandibular 2nd

Premolar

The mental foramen is typically next to

this tooth.

27. Maxillary sinus

Identify blue arrow


4/5

28. Oblique;

mylohyoid

The external oblique ridge is also called

the __________ ridge while the internal

oblique ridge is also called the

__________ ridge.

29. Patient moved

during

exposure.

What error occurred?

30. Patient's head

was tilted down.


31. Patient's head

was tilted up.


32. Patient's tonguewas not kept

against the roof

of the mouth. An

air space

created the

radiolucent

band. What error occurred?

33. Real or Double

images

These are produced when an object is

located between center of rotation &

detector.

34. Stepladder

The horizontal arrangement of trabeculae

indicated is sometimes referred to as a

__________ pattern.

35. Superior From the sagittal view, external oblique

ridges are superior/inferior to internal

oblique ridges.

36. The anterior

teeth appear

blurred and

widened.

Increased

ghosting of the

mandible

occurs.

What would happen if the patient's head

was too far back?

37. The football

player - thick

trabeculae with

small medullary

spaces.

Who would have denser alveolar bone: a

6'5", 260lb professional football player or

a petite, adult woman?

38. The mandibular

incisors are out

of focus. The

hyoid bone issuperimposed

over the

mandible. The

premolars are

overlapped.

"Smiley"

appearance is

enhanced.

How do you know the patient's chin was

too low?

39. The maxillary

incisors are out

of focus and the

hard palateappears along

the apices of the

maxillary teeth.

"Smiley"

appearance is

flattened out.

How do you know the patient's chin was

too high?

40. The maxillary

sinus has

dropped into the

space previously

occupied by a

tooth (nowextracted);

Pneumatization

of the maxillary

sinus What happened here? This is known as

__________.


5/5

41. The patient on

the right is older

because the PDL

is thinner.

Which of these patients is older? Why?

Hint: It doesn't have to do with the # of

teeth.

42. The patient

slouched. The

radio opaque

triangular

region is due to

superimposition

of the spine on

the image. What error occurred?

43. The patient was

too far back.


44. The patient was

too far forward.


45. The patient's

head was

turned.


46. The patients

head was placed

too far forward

during the x-ray.

If the anterior teeth are out of focus and

narrow, the spine overlaps the ramus and

the premolars are overlapped, what might

have happened?

47. The radiolucent

area is due to the

mental foramen,

not an abscess.

T/F: This abscess will not harm the tooth

because it is not touching it.

48. True T/F: The vertical component of a ghost

image is more blurred than its horizontal

component.

49. True T/F: Alveolar bone crests are somewhat pointed

between anterior teeth and more rounded or flat between

posterior teeth.

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Radiologie mandibulara si maxilara