Radiographs 10/18/16

Question 1

T/F

Radiographs are a substitute for a clinical examination

Answer 1

False

It is adjunct to the clinical examination

Question 2

What are four things that radiographs aid in for dentistry?

Answer 2

• Diagnosis of periodontal disease
• Determination of prognosis
• Treatment options
• Evaluation of outcome of treatement

Question 3

How far is the bone level away from the CEJ?

Answer 3

2 mm

Question 4

T/F

You should diagnose periodontal disease from only a radiograph

Answer 4

False

It needs to be coupled with a clinical examination

Question 5

T/F

Without radiographic images you can effectively evaluate alveolar crestal bone architecture

Answer 5

False

You can not effectively evaluate without a radiograph

Question 6

T/F

Without radiographic images you can not effectively evaluate crown-to-root ration/calculus presence

Answer 6

True

Question 7

What do you need to effectively evaluate the amount of horizontal bone loss?

Answer 7

Radiographic images

Question 8

What are the three basic intraoral radiographic techniques to consider assessment of bone status?

Answer 8

• Horizontal bitewing
• Vertical bitewing
• Periapical

Question 9

What do you use horizontal bitewings for?

Answer 9

To detect carious lesions on the interproximal regions and proximal surfaces

Question 10

Which intraoral radiographic technique allows you to see more of the tooth?

Answer 10

-Vertical bitewing

Question 11

Why do you use periapical radiographs?

Answer 11

To see the periapical region (see the root tip)

Question 12

Why do you use vertical bitewing radiographs?

Answer 12

To see the crest of the alveolar bone heigth

Question 13

What is the most common intraoral radiograph taken?

Answer 13

Horizontal bitewing

Question 14

T/F

Periapical is used to determine the alveolar bone heigth

Answer 14

False

It does not give a good estimate of bone heigth

Question 15

What intraoral radiograph do you use to determine the crown to root ratio?

Answer 15

Periapical

Question 16

What intraoral radiograph do you use when the patient has mild to moderate horizontal bone loss?

Answer 16

Horizontal bitewing

Question 17

What should you see from a horizontal bitewing when it is properly positioned?

Answer 17

• Superimposition of the buccal and lingual cusps
• A sharp or well-defined alveolar crestal margin
• No horizontal overlap between adjacent teeth

Question 18

What intraoral radiograph do you use when the patient has moderate to severe (periodontitis) horizontal bone loss?

Answer 18

-Vertical bitewind

Question 19

T/F

Periapical radiographs have a tendency to distort the distance between the alveolar osseous crest and CEJ

Answer 19

True

Question 20

What is an advantage of a long-cone paralleling technique?

Answer 20

Less radiation

Question 21

What technique allows you to see the most realistic image to evaluate level of alveolar bone?

Answer 21

Long-cone paralleling technique

Question 22

Where should the bone run in comparison to the CEJs of adjacent teeth

Answer 22

Parallel

Question 23

If the crest of the bone is parallel with the CEJs do you have horizontal or vertical bone loss?

Answer 23

Horizontal

Question 24

What type of bone loss do you have if the bone is not parallel with the CEJs of adjacent teeth?

Answer 24

Vertical bone loss

Question 25

What is the radiolucent area between the CEJ and the crest of the bone?

Answer 25

Connective tissue attachment