L117: Special Tests - Radiographs

Question 1

X-ray photons traversing tissue can:

Answer 1

• Pass through, unaltered;
• Pass through, scattered;
• Be absorbed.

Question 2

The three types of intra-oral X-rays are:

Answer 2

• Bitewings;
• Periapicals;
• Occlusals.

Question 3

An extra-oral X-ray is called a:

Answer 3

• Panoramic (DPR/DPT)

Question 4

Bitewings are commonly used for:

Answer 4

Caries diagnosis, show side teeth

Question 5

Periapical X-rays are commonly used to:

Answer 5

Assess bone levels around individual teeth (like a zoomed in picture)

Question 6

Panoramics are used to:

Answer 6

See the whole dentition, useful for children entering adolescence (like a wide-angle view)

Question 7

Occlusal X-rays show:

Answer 7

Upper or lower dentition

Question 8

When viewing radiographs:

Answer 8

Image displays teeth from R to L

Question 9

Teeth with one root are:

Answer 9

Incisors, canines, some premolars

Question 10

Teeth with two roots are:

Answer 10

Some premolars, lower molars

Question 11

Teeth with three roots are:

Answer 11

Upper molars

Question 12

Other features that can be observed on upper teeth X-rays include:

Answer 12

• Maxillary sinus;

- Nasal cavity.

Question 13

Other features that can be observed on lower teeth X-rays include:

Answer 13

• Inferior alveolar (dental) canal;
• Mental foramen;
• Lower border of mandible.