Function : to measure the depth of the pockets.
General characteristics :
- millimeter calibration
- blunt, rounded tip
- thin ( 0,5 mm at the end )
- the shank is angled to allow easy insertion
in the pocket.
• a 15-mm-long probe with markings at each millimeter
• Color coding between 4-5 mm, 9-10 mm, 14-15 mm .
• very useful in periodontal research
Types of periodontal probes
Williams marking at :
1, 2, 3, 5, 7, 8, 9,10 mm
- Goldman-Fox probe same as Williams probe`s calibration
- But it is flattened not round
CP 12-S CP11 CP12
All of them color-coded
CP 12 : 0,3 mm at the end ( tip )
CP 12-S: modified/0,5 mm ball at the end/
Calibrations in 3-mm sections
• 0,5 mm ball at the tip
• millimeter markings
at 3,5/ 5,5/ 8,5/ 11,5 mm
• color coding from
3,5 to 5,5 mm
Nabers probe :
Blunt for furcation
we can detect the
also with straight
and root planning
Parts of each instrument
( blade )
The blade at the
same level with the
between 5 to 10 mm
From A to B
is the shank
(The lower part is
Terminal shank )
Chisel not more be used
Types of scaling and
root planning instrument
Characteristics ( design ) :
1.Triangular shape in cross section .
2.Two cutting edges . 3. pointed tip .
3.The angle between the blade and terminal shank is 90
It is used primarily to remove supragingival calculus
Some sickle scalers are small , curved , thin enough
to be inserted a few mm below the gingiva .
Types of scalers
1)- Different blade size.
2)- Different blade design
curved, or straight .
3)- Different shank type :
- Straight shanks are designed
for use on anterior teeth
- Angled shanks adapt to
204 S C103 CK6
angled shank, curved blade, different blade sizes
Curved or straight sickle scalers ?
General characteristics ( design ) :
1. Rounded toe, no sharp points, can be inserted
into deep pockets with minimal soft tissue
2. In cross section , the blade
( spoon-shaped blade )
3. Fine blade.
4. Curved blade.
Removing deep subgingival calculus
Two basic types :
The face is at a 90-degree angle with
terminal ( lower ) shank.
Two cutting edge.
What is the difference
Curette and sickle scaler?
Gracey curettes are a set of several
instruments designed to adapt to specific
anatomic areas of the dentition.
The best instruments for subgingival scaling
and root planning because :
- they provide the best adaptation to
complex root surface anatomy.
- only one cutting edge, less damage to the
gingival soft tissues.
( Gracey curettes )
1. Blade is at 70 degrees from the lower shank
(offset blade). This angulation allows the blade to
be inserted in the precise position , provided parallel
lower shank with the long axis of the tooth surface
Design of Gracey curette
2. Curved blade in two planes
blade curves up and to the side
3. One cutting edge.
Universal curetteGracey curette
All areas and surfacesspecific surfacesArea of use
two cutting edgeOne cutting edgeUse of cutting edge
Curved in one planeCurved in two planesCutting edge curvature
Not Offset , 90 degreesOffset blade, 70Blade angle
Universal curetteGracey curette
• Larger, stronger, and less
flexible shank and blade
• Used to remove moderate-
• Thinner shank, more
• Enhanced tactile sensitivity,
used to finish root planning.
Rigidity type of shank
Reduced set of Gracey
# 5-6 # 7-8 # 11-12 # 13-14
It is a modification of the
Combines a Gracey :
#11-12 blade with a
#13-14 shank .
It is allows better
adaptation to posterior
mesial surfaces, especially
on the mandibular molars
with an intraoral finger rest.
• They are modifications of the
standard Gracey curette
design. New features :
1. The terminal shank is 3 mm
longer ( allowing extension
into deeper periodontal
pockets of 5 mm or more).
2. A thinned blade . For
smoother insertion , and
reduced tissue stretching.
3. 1mm shorter blade
extended shank instruments
- After Five curette -
Available After Five instruments :
#1-2, 3-4, 5-6, 7-8, 9-10 , 11-12, 13-14
Available in finishing (fine) or rigid designs:
- rigid After Five Gracey curettes
- finishing After Five Gracey curettes
Rigid standard #13-14 adapted to the distal surface
of the first molar. And rigid After Five #13-14
adapted to the distal surface of the second molar.
Notice the extra long shank which allows deeper
insertion and better access.
They are modifications of
the After Five curettes
1. Blades are half the
length of the After Five
or standard Gracey
2. Extended shank
- Mini Five-
Easier insertion and adaptation in any area
where root morphology or tight tissue
prevents full insertion of standard Gracey or
After Five blade :
1. deep, narrow pockets,
3. developmental grooves,
4. line angles,
5. Deep, tight pockets.
Comparison of a standard Gracey # 5-6
with a Mini Five # 5-6 curette on the palatal
surfaces of the maxillary central incisors.
The Mini Five can be inserted to the base of
these tight pockets with vertical stroke.
- Available in both:
- rigid Mini Five Gracey curette
- finishing Mini Five Gracey curette
- available in all standard Gracey numbers
except for the # 9-10
- advantages :
1. can be used easily with vertical strokes,
2. With reduced tissue distention,
3. and without tissue trauma.
Plastic instruments be used to avoid
scratching and damage to the implants.
Used to remove
Oscillating scaler systems
- power-driven scalers-
The vibrations range from 20000 to
Consists of a handpiece that attaches to
compressed air in dental unit.
Vibrations at the sonic tip range from
2000 to 6500 cycle per seconds ( Hz ) .