instrumentation Flashcards
1
Q
angel less than 45 will burnish hard deposits
A
2
Q
working strokes
A
roots : longer strokes with less pressure
3
Q
gracey 1/2,3/4,5/6,7/8
A
used for all anteriors , 5678 is good for pre molars
4
Q
gracey 11/12,15/16
A
posteriors (mesial/direct surface)
5
Q
gracey 13/14,17/18
A
posteriors (distal)
6
Q
sharpen from heel to tip (toe)
A
7
Q
sonic scaler
A
uses compressed air
move in elliptical motion
8
Q
magnetostritive scaler
A
move in elliptical motion
the point has the highest power
9
Q
piezoelectric scaler
A
moves in linear motion
10
Q
patient’s tip of the nose should always be lower than the clinician’s elbow
A
