Types of torqueing auxiliary /certified fixed orthodontic courses by Indian dental academy

INDIAN DENTAL ACADEMY
Leader in continuing dental education
www.indiandentalacademy.com


TYPES OF TORQUEING AUXILIARY
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.

TWO SPUR TORQUEING
AUXILIARY
FOUR SPUR
SIX SPUR
RECIPROCAL
SHORT FOUR SPUR
INDIVIDUAL
ONE TO ONE
RECIPROCAL
LOWER REVERSE
RAT - TRAP
ASYMMETRICAL


RECIPROCAL TORQUEING AUXILIARY
-

Indicated when the upper
lateral incisors were blocked
out palatally before
treatment. Their root apices
must be torqued labially to
reduce the tendency for the
crowns to relapse lingually.

-

Lever arms on laterals
pass incisaly for labial root
torque.


SHORT FOUR – SPUR TORQUEING
AUXILIARY




Indicated for torqueing of
upper anterios.
Does not engage cuspid
bracket
Easy to fabricate.


INDIVIDUAL TORQUEING AUXILIARY



Used for selected upper or
lower teeth
If placed gingivally, torque
the root of the lateral
lingually.


ONE TO ONE TORQUEING AUXILIARY




Indicated when two
adjacent teeth require
root torque in opposite
directions.
Tends to deliver
excessive force
therefore degree of
activation between lever
arms should be low


REVERSE TORQUEING AUXILIARY




Indicated if lower
anterior teeth are
becoming too proclined.
Acts as a source of intra
oral mandibular
anchorage to inhibit
forward movement of
mandibular dental arch.


RAT - TRAP TORQUEING AUXILIARY






Main arch wire is
formed from 0.020 inch
round wire.
The auxiliary is wound
from either 0.014 or
0.016 inch highly
resilient round wire.
The torqueing “bars” do
not extend to the
gingiva.


ASYMMETRICAL TORQUING AUXILIARY
Auxiliary

used to produce palatal root torque of the
maxillary right central and lateral incisors.
The

ends of the auxiliary are terminated distal to
the canine brackets.
As

the central incisor loop is formed mesial to the
bracket and the lateral incisor loop is formed distal
to the bracket mesodistal movement of the auxiliary
is prevented.

1.
2.
3.
4.
5.
6.
7.
8.
9.
10.

Two spur arch
Four spur arch
Modified four spur
Art four – spur
Modified Kitchon 2 – spurs
Kitchon two finger spur
F and J two spur arch
Von der heydt two – spur
arch
Modified reverse torque
arch
Sain reverse torque arch


The lingual torquing effect is on account of two
factors:
1. Vertical plane changes to horizontal.
2. Smaller circle opens to large.
Both these effects force the tips of the
spurs to press in a lingual direction against the
gingival portion of the crown. Reciprocally, the
inter – spur spans of the auxiliary tend to lift away
in a labial direction. Thus a force couple is
created. The labial forces are resisted by the
bracket slots and the base archwire to which
auxiliary is tied this accentuates the action of root
lingual moving force.


TYPES OF UPRIGHTING SPRING




A combination safety
lock pin and uprighting
spring that eliminates
the need for ligating the
arch wire to the bracket.
Locked in place by
bending the tail of the
spring around the body
of bracket.
Available as two coil
and three coil from .014


PLAIN UPRIGHTING SPRING
Made of 0.014 for uprighting
canine and premolars, 0.012 for
incisors.
 The angulation of the active arm
and retentive arm is 135 degree.
 The helix with retentive arm
should face the tooth surface.
 The base arch wire is ligated,
otherwise the action of
uprighting spring will extrude the
tooth .



-The

length of hook is made greater than the
diameter of the helix to keep the arm of the
spring parallel to the arch wire in the vertical
plane.
--

To avoid a rotating force on the tooth, the
arm of the spring is offset buccally to make it
parallel to the arch wire in the horizontal
plane.


The degree of activation of the uprighting springs depends
on:
1. The size of wire
2. Diameter of helix
3. Number of turns in the helix
4. Length of the arm of the spring
5. The size of the root being uprighted.


MINISPRING





Made of thinner diameter
(0.009) high resilient
supreme grade wire.
The coil of springs is only
twice the size of the wire.
The activation is 100%, the
stem and active arm are in
one line.




The hooks of short –
arm uprighting springs
will slide along the arch
wire and approach each
other as teeth upright.



If long arm uprighting
springs are used, the
arms of premolar and
canine cross each
other.


Thank you
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Types of torqueing auxiliary /certified fixed orthodontic courses by Indian dental academy

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Types of torqueing auxiliary /certified fixed orthodontic courses by Indian dental academy