Exam 3 Calculus Removal Instruments Flashcards
Assessment strokes are
light, feather-like long overlapping strokes
*Debridement strokes
moderate shaving strokes
*Calculus Removal strokes are
firm, short, biting strokes
3 types of calculus removal instruments
Area specific curets-toe
Universal curets-toe
Sickles-triangle
What 2 surfaces form the cutting edge
Face and lateral surfaces
What is the terminal shank at in relation to parallel tooth without adapting for
sickle scaler
universal curet
area-specific curet
sickle scaler and universal curet is at a 90 degree relation
and the area-specific is already at 70 degree angel for adatption
What degree is needed to adapt for sickle scaler and universal curet
60-70 degree
• Specific instruments designated for anteriors and posteriors • All designed for all surfaces • All designed for supra/slightly subgingival use on ENAMEL ONLY • Standard/ rigid shank- removal of medium to large size deposits • Lower shank must be slightly angled towards the tooth surface to establish proper angulation
Sickles
Can a sickle scaler be used on posteriors
yes
Can a sickle scaler be used on root surfaces
NO only enamel. it can slightly go subgingival though
Sickle Anterior should have the shank leaning ___ surface using toward.
toward
• All designed to be used in the anterior and posterior • All designed for all surfaces • All designed for supra and subgingival use • Standard shank is normally more rigid than the standard shank of an area- specific curet • Lower shank must be slightly angled towards the tooth surface to establish proper angulation
Universal Curets
Terminal shank ___ with long axis for correct working end for universal curet
parallel
universal curet: 1 double ended instrument can be used for appiclation for all anterior or posterior teeth
posterior
• All designed for supra and subgingival use
• Two instruments are required to complete
each aspect of a posterior tooth.
• One instrument is required to complete
each aspect of an anterior tooth, but you
will use both ends of the instrument. What
other instrument do you use this way?
• Standard shank is flexible- removal of
light/moderate calculus.
• Lower shank is parallel to tooth surface to
establish proper angulation
Area specific curets
