Radiology Flashcards
You can not use a radiograph alone to do what?
Make a diagnosis (they help make a diagnosis but cannot be used alone)
What are four things you need a radiograph in order to effectively evaluate?
1-Alveolar crestal bone architecture
2-Crown to root ratio (calculus presence)
3-Furcation
4-Horizontal bone loss
What are the three basic radiograph techniques?
1-horizontal bitewing (mild to moderate bone loss)
2-Vertical bitewing (moderate to severe bone loss)
3-Periapical (asses bone height accurately)
Which periapical technique is the most realistic imaging to evaluate level of alveolar bone?
Long-cone paralleling
What are 4 things you look at on a radiograph in regards to Perio?
1-Interdental septa
2-Lamina dura
3-PDL space
4-Bone marrow space
When the line between neighboring CEJs is angulated, what will the interdental bone look like?
also angulated
CEJ to the crest of the bone at each tooth surface is how far?
1.5-2.0 mm
How wide should the PDL space be?
0.1-0.25 mm (100-250 um)`
The PDL is _______ under heavy occlusion and _______ in non functional teeth
thickest, thinnest
What is the surface area of the socket wall in single root vs. multi-rooted?
single-150-275 sq mm
multi- 450 sq mm
What percent of bone mineral density loss is necessary before it is detected radiographically?
30%
Symmetrical bone loss on the medial and distal surface of contiguous teeth that appears to be place is called what?
horizontal bone loss
Funnel-shaped bone loss that plunges apically on one tooth surface with little or no bone loss on contiguous tooth is called what?
Vertical bone loss
Which molars are easier to see a furcation on?
mandibular molars (only two roots)
How often do Cervical Enamel Pearls form?
1.1-9.7% (2.69% mean) can lead to bone loss
