Level 4
HAND INSTRUMENTS
DR LOBNA ABO ELNASR
 Reference book
 Dental instruments pocket guide by linda R
bartolomucci
 Art and science 5th edition
1- diagnostic instrument
 A- mirror
 Function
 : provide indirect vision
 Retraction for lips , cheeks, and tongue
 Reflection og light into mouth
 B- explorer (probe)
 Function :
Back
action
(orban)
 Examine tooth for caries ,
calculus,and furcation
involvement
hook
 C-forceps (plier( or tweezer)
 Function:
 Hold and transfer materials
from and into oral cavity
2- enamel cutting instrument
A- enamel hatchet:
Function
Removal of
undermined enamel
Shaping to external
walls
 B-enamel hoe:
 Function:
 Remove undermined enamel
from walls in cavity
preparatyion
 C- wedelstaedat
chisel
 Function :
 Removal of
undemined enamel
 D- gingival marginal
trimmer-mesial and
distal
 Function:
 Bevel for cervical
margins mesial and
distal
 Bevel to axiopulpal line
angle
 E- spoon
excavator:
 Function:
 Removal of soft
caries, temporary
crown,temporary
cement,
permenant crown
 Claw like called
(spoon)
discoid
SPOON
Amalgam instruments
 1- amalgam carrier
 Carry and dispense
amalgam for cavity
 Double ended
 Single ended called
plunger style or gun
style
Plunger style
 2- duppin
dish(well)
 Function : hold
amalgam before it
is ploaced in
preparation
 Holding amalgam
while loading
amalgam carrier
 3- condenser (plugger)
 Function:
 Pack and condense
amalgam into cavity or
even temporary or
another restorative
material it may be
smooth or serrated
 4- liner applicator
 Function:
 Place calcium
hydroxide in a
cavity preparation
Egg ball ( football) (
beaver tail)
 5- burnisher
 Function:
 Smooth amalgam
after condensation
 Do initial carving for
amalgam
 Contour uncontoured
matrix band
ball
Acorn(diamond)
 6- hollen back carver
 Function:
 Carve amalgam
occlusal and
interproximal surface
 7-discoid cleoid carver
 Function:
cleoid
 Carve occlusal anatomy
in amalgam restoration
discoid
 8- tofflemire matrix
 Function:
 Maintain stability of matrix during
restoration of class 2
Parts:
Guide slot for right and
left
Diagonal slot:towords
gingiva sliding up and
downon the spindle
Spindle : hold matrix in
place
Inner knob adjust size of
the band to fit around
tooth
Outer knob:at the end of
the spindle to tighten or
loose the matrix
Outer
(small)
knob
Inner (large
) knob
Diagonal slot
Guide slot
spindle
 9- matrix band:
 Function replace missing proximal wall to restore class 2
Universal band for all posterior
MOD MATRIX FOR MOLAR AND
PREMOLAR
 CEMENT SPATULA
 FUNCTION :
CEMENTATION OF BASE
ON GLASS SLAB
Composite restorative material
 1- plastic
filling
instrument
 Function:
 Carry
composite
material
into cavity
 Place ,
condense
and carve
composite
 2- applicator
 Function:apply
conditioner ,
primer or bonding
system
3- finishing strip
Function
Finish and smooth
interproximal surface of
restoration
Rubber dam instruments
 1- dam sheet
 Function :
 Isolation of teeth for dental work
2- punch:
Function : punch holes in dental dam
It has table of 5 holes
No 5:anchor tooth (largest)
No 4:molar
No3:premolar
No 2:upper anteriors upper and lower
canine
No 1: lower central and lateral
 3- forcepes:
 Function : to place and
remove the clamp
4- frame:
Function : hold
dam away from
teeth it may be
plastic or metal
5- clamp
Function: anchor and stabilize
the dam
212 ANTERIOR
CLAMP
Dental hand piece
 1- high speed hand
piece
 Function cut in the
toooth removing decay
making cavity
preparation
 Air turbine with water
cooling system 2 or 4
holes
 May be push button or
with bur changer
2- low speed motor
function:used with slow
speed attachment,with
straight handpiece with
long shank bur
3-slow speed motor with contra angle handpiece
Function:with low speed hand piece removal of caries , polishing
of teeth and restoration
Dental burs and rotary attachment for handpiece
 Bur:
 Function: used with
high or low speed
 Composed of head ,
neck, shank
 Shank end
determines which
handpiece to be used
straight shank, latch
type, friction grip
 1- round bur
 Function : removal of
caries from tooth
structure
 Open access for
endodontic treatment
 Place retention in
cavity preparation
 2-pear shape bur
 Function: open
tooth for
restoration,
removal of caries
 Most common 330,
in composite
restoration
 4- invert cone bur:
 Function : removal of caries
 make retention in cavity
preparation
 5- straight fissure bur-
plain cut
 Function:cut cavity
preparation,retention
grooves
 6- tapered fissure bur- plain cut
 Function:
 Cut for cavity preparation, place retention grooves
in walls
 Commonly 169, 271 it may have short or long shank
 8- tapered fissure bur cross cut
 Function: cut cavity preparation, place retention
grooves or locks
straight
tapere
d
9-Finishing bur
 Function:
 To finish composite restorationit may be carbide
 12 fluted carbide
 Diamond fine one with yellow strip
 10-flat end taper diamond
 Reduction of tooth for
crown to make shoulder
finish line
 From superfine to course
grit designed by color
band on the shank
 11- round end tapered (TR)
diamond
 Function : preparation of tooth
for crown to make chamfer
finish line
 12- flame diamond
 Function reduction of tooth for
crown for subgingival margins
 Superfine for finishing restoration
 13-wheel diamond
 Function:
 Reduction of tooth for crown
on lingual surface and incisal
edge
The names of most common shaped of bur either
carbide or diamond
 14- rubber point
 Function:polish of restoration composite , amalgam
 Types:
 Brown points: abrasive
 Green point les abrasive
 White (point) polishing point
 It may be friction grip
 Or latch type
Friction
grip
Latch
type
 15- lab acrylic bur
 Function:
 Cut models or trim acrylic in lab
 Attached for straight hand piece