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Flashcards in (page 10) - THE TEETH Deck (23)
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1

2

Deciduous 2nd Premolar

2

5

Alveolar Bone Margin

3

4

Alveolar Bone Margin

4

1

Apex of Teeth

5

4

Region of cementoenamel junction

6

10

Region of cementoenamel junction

7

3

Lamina Dura

8

1, 2

Lamina Dura, Periodontal Ligament Space

9

3

Cusp

10

11

Pulp Horn

11

12

Pulp Chamber

12

14

Pulp (root) Canal

13

15

Radicular Groove

14

10

Mandibular Canal

15

12

MIDDLE mental foramen of the mandible

16

1

Mandibular Symphisis

17

1

Palantine Fissure

18

what is cervical burnout

 

Cervical burnout is an area of apparently increased radiolucency in the mesial and distal cervical (neck) regions of the tooth. Such regions are often mistaken for interproximal caries when in fact they only appear radiolucent because they have neither the radiopaque enamel of the region immediately above nor the bone tissue below.

19

What is superimposition

it appears to be when some sort of bone is in the background!

20

What is foreshortening?

Foreshortening exists if the vertical angulation is larger than necessary. The image of the teeth appears smaller than normal

21

What is elongation?

Elongation exists if the vertical angulation is less than is necessary. The image of the teeth appears larger than normal

22

What is parallel technique?

Used for mandibular
premolars and molars
• All other dentition – Bisecting
Angle Technique

23

What is the bisecting angle technique?

1. Place film as close as possible to
tooth without bending film
2. Angle between the tooth’s long axis
and film is bisected
3. The primary x-ray beam is directed
perpendicular to the bisecting angle