Hand Scaling - PERIO Flashcards
what instrument is a double-ended point scaler with two cutting edges on each blade?
mini-sickle
what area of the mouth does the mini-sickle scale?
- ANYWHERE in mouth
- supra-gingivally
- buccal and lingual embrasures
what is unique about universal curettes?
it has a curved spoon shaped blade & two cutting edges which meet to form a rounded toe
where in the mouth does the Columbia Curette scale?
- anywhere
- sub-gingival
- (limited access to deep pockets)
where does the Gracey Curette 1-2 scale?
- sub-gingival
- upper & lower anterior teeth
what colour is the Gracey Curette 1-2?
grey
where does the Gracey 7-8 scale?
- sub-gingival
- buccal/lingual surfaces
- posterior teeth!
what colour is the Gracey 7-8?
green
where does the Gracey 11-12 scale?
- sub-gingivally
- mesial surfaces
- posterior teeth!
what colour is the Gracey 11-12?
orange
where does the Gracey 13-14 scale?
- sub-gingival
- distal surfaces
- posterior teeth!
what colour is the Gracey 13-14?
blue
how many cutting edges does a Gracey Curette have?
one
what colour is the mini sickle?
red
what colour is the Columbia Curette?
red
where does the Hoe Scaler 134-135 scale?
- supra and sub-gingival
- buccal and lingual surfaces
- anywhere
what colour is the Hoe Scaler 134-135?
yellow
where does the Hoe Scaler 156-157 scale?
- supra and sub-gingival
- mesial and distal surfaces
- anywhere!
what colour is the Hoe Scaler 156-157?
red
explain the blade angulation of the hoe in relation to the shank and cutting edge:
- blade is set at a 100 degree angle to the shank
- the cutting edge is bevelled at 45 degrees
what is the cutting angle for the hoe?
90 degrees to the tooth surface
what is the blade angulation of the Gracey Curettes between the shank and blade?
angle of 110 degrees between the lower shank and the face of the blade
what type of blade are the Gracey Curettes? what does this mean?
Offset blades
- face of blade is offset at an angle to the lower shank
what is the cutting angle for Gracey Curettes?
70 degrees
how can the mini-sickle be described in cross section?
triangular in cross section
how can the Columbia curette be described in cross section?
semi-circular in cross section
describe the shape of the columbia curette?
- curved spoon shaped blade
- 2 cutting edges that meet to form a rounded toe
