NDHCE: Instrumentation
Large Diameter Handles (10cm)
What handles provide better control and - Round shape ideal
decrease muscle fatigue? - Hollow to transmit vibrations from work-
ing end to finger
Specifically designed for instrumentation
in furcation areas, and the shape of the
What is a Demarco curette used for? working end is particularly effective for
the roof, floor, or flat surfaces of furca-
tions.
Can be used as hand or ultrasonic instru-
What can a subgingival air polisher using mentation on restorations, and implants,
glycine powder be used for? and has been shown to improve treat-
ment outcomes in peri-implant diseases.
Specifically designed for access on
rounded root surfaces, and the 5mm and
What is a Langer sub zero curette used
10mm markings on the shank assist the
for?
clinician in determining the depth of in-
strument insertion.
Erythritol powder is very comfortable,
which is an important choice for sensitive
What is an air polisher with erythritol use- patients, and is the least abrasive, so
ful for? it can be used in both supra and sub
and on restorations including implants to
remove stain and biofilm.
Help prevent finger slippage and require
Why are tapered ends helpful?
less pinch force during instrumentation.
Lightweight handles as they put less
stress on the hand (and fingers) while
What weight of an instrument is best?
enhancing tactile sensitivity (ideal weight
is 15g or less).
What is the portion between the working
Functional shank, allows the working
end and the last bend in the shank clos-
end to be adapted to the tooth surface.
est to the handle called?
What is the portion of the functional Terminal (lower) shank, normally parallel
shank closes to the working end, be- to the tooth surface being instrumented.
, NDHCE: Instrumentation
tween the working end and the first
bend?
Longer, or extended lower shanks, an
What type of shanks are better used in
extended shank is 3mm longer than a
deeper pockets and posterior teeth?
standard lower shank.
What type of shank has only one bend
Simple shank, used on anterior teeth and
with the working end facial the clinician,
easily accessed areas.
the shank is straight?
- Task
How does flexibility vary? - Metal used
- Shank diameter
What are thinner, flexible shanks better
Tactile sensitivity.
for?
What are thicker, rigid shanks for? Greater strength.
What instrument working end is triangu-
lar in cross-section and have a pointed Sickle Scalers
back and tip, used supragingivally?
What instrument working end has a
semi-circular cross-section and have a
Currettes
rounded back and toe, used sub and
supra?
What components of the clinician should
Wrist and hand.
be activated during instrumentation?
What is the recommended grasp for pe-
Modified Pen Grasp
riodontal instruments?
- Fingers in a soft c-shape
- Thumb and index finger are opposite
from each other, not touching
- Middle finger rests lightly on the instru-
What are the different components of a
ment shank
proper modified pen grasp?
- Ring finger acts as the fulcrum
- Pinky relaxed next to ring finger
- Fingers apart in the grasp should be
avoided
Large Diameter Handles (10cm)
What handles provide better control and - Round shape ideal
decrease muscle fatigue? - Hollow to transmit vibrations from work-
ing end to finger
Specifically designed for instrumentation
in furcation areas, and the shape of the
What is a Demarco curette used for? working end is particularly effective for
the roof, floor, or flat surfaces of furca-
tions.
Can be used as hand or ultrasonic instru-
What can a subgingival air polisher using mentation on restorations, and implants,
glycine powder be used for? and has been shown to improve treat-
ment outcomes in peri-implant diseases.
Specifically designed for access on
rounded root surfaces, and the 5mm and
What is a Langer sub zero curette used
10mm markings on the shank assist the
for?
clinician in determining the depth of in-
strument insertion.
Erythritol powder is very comfortable,
which is an important choice for sensitive
What is an air polisher with erythritol use- patients, and is the least abrasive, so
ful for? it can be used in both supra and sub
and on restorations including implants to
remove stain and biofilm.
Help prevent finger slippage and require
Why are tapered ends helpful?
less pinch force during instrumentation.
Lightweight handles as they put less
stress on the hand (and fingers) while
What weight of an instrument is best?
enhancing tactile sensitivity (ideal weight
is 15g or less).
What is the portion between the working
Functional shank, allows the working
end and the last bend in the shank clos-
end to be adapted to the tooth surface.
est to the handle called?
What is the portion of the functional Terminal (lower) shank, normally parallel
shank closes to the working end, be- to the tooth surface being instrumented.
, NDHCE: Instrumentation
tween the working end and the first
bend?
Longer, or extended lower shanks, an
What type of shanks are better used in
extended shank is 3mm longer than a
deeper pockets and posterior teeth?
standard lower shank.
What type of shank has only one bend
Simple shank, used on anterior teeth and
with the working end facial the clinician,
easily accessed areas.
the shank is straight?
- Task
How does flexibility vary? - Metal used
- Shank diameter
What are thinner, flexible shanks better
Tactile sensitivity.
for?
What are thicker, rigid shanks for? Greater strength.
What instrument working end is triangu-
lar in cross-section and have a pointed Sickle Scalers
back and tip, used supragingivally?
What instrument working end has a
semi-circular cross-section and have a
Currettes
rounded back and toe, used sub and
supra?
What components of the clinician should
Wrist and hand.
be activated during instrumentation?
What is the recommended grasp for pe-
Modified Pen Grasp
riodontal instruments?
- Fingers in a soft c-shape
- Thumb and index finger are opposite
from each other, not touching
- Middle finger rests lightly on the instru-
What are the different components of a
ment shank
proper modified pen grasp?
- Ring finger acts as the fulcrum
- Pinky relaxed next to ring finger
- Fingers apart in the grasp should be
avoided
