Radiographs 10/18/16 Flashcards
(25 cards)
T/F
Radiographs are a substitute for a clinical examination
False
It is adjunct to the clinical examination
What are four things that radiographs aid in for dentistry?
- Diagnosis of periodontal disease
- Determination of prognosis
- Treatment options
- Evaluation of outcome of treatement
How far is the bone level away from the CEJ?
2 mm
T/F
You should diagnose periodontal disease from only a radiograph
False
It needs to be coupled with a clinical examination
T/F
Without radiographic images you can effectively evaluate alveolar crestal bone architecture
False
You can not effectively evaluate without a radiograph
T/F
Without radiographic images you can not effectively evaluate crown-to-root ration/calculus presence
True
What do you need to effectively evaluate the amount of horizontal bone loss?
Radiographic images
What are the three basic intraoral radiographic techniques to consider assessment of bone status?
- Horizontal bitewing
- Vertical bitewing
- Periapical
What do you use horizontal bitewings for?
To detect carious lesions on the interproximal regions and proximal surfaces
Which intraoral radiographic technique allows you to see more of the tooth?
-Vertical bitewing
Why do you use periapical radiographs?
To see the periapical region (see the root tip)
Why do you use vertical bitewing radiographs?
To see the crest of the alveolar bone heigth
What is the most common intraoral radiograph taken?
Horizontal bitewing
T/F
Periapical is used to determine the alveolar bone heigth
False
It does not give a good estimate of bone heigth
What intraoral radiograph do you use to determine the crown to root ratio?
Periapical
What intraoral radiograph do you use when the patient has mild to moderate horizontal bone loss?
Horizontal bitewing
What should you see from a horizontal bitewing when it is properly positioned?
- Superimposition of the buccal and lingual cusps
- A sharp or well-defined alveolar crestal margin
- No horizontal overlap between adjacent teeth
What intraoral radiograph do you use when the patient has moderate to severe (periodontitis) horizontal bone loss?
-Vertical bitewind
T/F
Periapical radiographs have a tendency to distort the distance between the alveolar osseous crest and CEJ
True
What is an advantage of a long-cone paralleling technique?
Less radiation
What technique allows you to see the most realistic image to evaluate level of alveolar bone?
Long-cone paralleling technique
Where should the bone run in comparison to the CEJs of adjacent teeth
Parallel
If the crest of the bone is parallel with the CEJs do you have horizontal or vertical bone loss?
Horizontal
What type of bone loss do you have if the bone is not parallel with the CEJs of adjacent teeth?
Vertical bone loss
