W10 - Optical Devices for Endo Tx - Stoll Flashcards
1
Q
Features of endodontic mirrors (3)
A
- Small size for endo procedures
- Front surface coated
- Flat surface, not concave
2
Q
Features of galiliean loupes (4)
A
- 2 lense system
- short length
- Light weight
- Range 1.8- 3x magnification
3
Q
How are galilean loupes a 2 lens system?
A
Concave lens in the front
Convex lens in the back
4
Q
Features of Kepler / Prismatic loupes
A
- 2 lens system and a prism to rotate the picture
- Large field of view
- Heavier
- Range 3-6x
5
Q
What angle should the head be whilst wearing loupes
A
25 degrees
6
Q
What is the “depth of field”
A
The range in which you’ll see a sharp image
- Larger in loupes with small mag
- Smaller in loupes with larger mag
7
Q
What is the working distance range
A
300-550 mm
8
Q
Recommended mag for general work
A
1.8 - 2.5x
9
Q
Recommended mag for Controlled prep and simple endo
A
3-5 x
10
Q
Recommended mag for endo and microsurgery
A
>5x
11
Q
Mag of surgical operation microscope
A
Up to 40x
12
Q
Benefits of the SOM (4)
A
- Upright position
- Magnification up to 40x
- Good coaxial lighting of the field
- Full field visual of the pulp chamber
