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2. MOLLENHAUR”S ALIGNING
AUXILLARY & ITS
The
MAA attempts root control from the
very beginning, without significantly
affecting the anchorage and over bite
correction.
The MAA is made from the 0.009”
Supreme grade wire.
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3. Requirements
for use of the MAA
1 . It must generalte very light
moving forces.
The adjacent rectangles must not
diverge by more than 45
The auxillary must be able to resist
deformation- Supreme grade wire is
used.
The base wire should be able to
resist the reciprocal forces.
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4. 5.
MAA is engaged first and the main arch
wire is piggy back.
Advantages
of the MAA
1. Efficaci in intrusion and simulataneous
retraction of the anterior teeth.
2.rapidly bodily alignment of the anterior
teeth.
3. Stable results.
4. Reciprocability of torquing forces on the
instandind laterals or palatally placed
canines.
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5. 5.
Periodontal advantages.
Short stage III.
Various
applications of the MAA
By bending more positive torque, it
can be used after the stage I as a
braking mechanism.
Applying labial root torque on the
lower incisors in growing
brachyfacial cases to prevent their
roots from lingualizing.
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6. mollenhauer can be used for
controlling the mesio- distal root
position.
This application is called MAA- tip.
Biomechanics
of the MAA.
A.
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7. Modified application of the MAA
The
holding down the boxes for
lingual root torque with the tail end
of the lock pins was difficult.
In this modification, the torque is
directly applied on the gingival
surface of teeth.
It is made with the boxes inside the
circle.
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8. When
reciprocal root torque is
required, the box meant for labial
root torque rides over the main wire
and presses against the incisal
portion of the crown.
MAA is not used for
unravellingcrowding. It is fitted only
after enough space is created by
distalizing the canines.
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9. The torquing auxillary with spurs
The
auxillary is made from 0.012”
premium Plus wire.
Modifications:
1. Length of the spur- the length of the
spur should be kept at least 5mm,
leaving it about 1mm short of the gum
to facilitate proper hygeine.
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10. 2.
Inclination of the spurs to the
horizontal(occlusal) plane is kept 0.in other
words the activation is 100%.
3. The angle of the spur from the inter spur
span opens up and the legs of the spur tend
to converge.
This is remedied by slightly over angulating
the spur and by keeping it less divergent.
The distal leg of every spur is kept slightly
shorter by about 0.5mm so that it does not
project incisally to the main archwire.
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11. 4.
The inter spur span is curved as
recommended by Kesling.a straight or
angulated inter-spur span cannot
assume a perfect curvature.
Correctly
made auxillary having curved
inter=spur span.
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12. Modifications
of torquing auxillary
A. Reverse (lsbisl) torque on one or
both the lateral incisors: Boxes at right angle to the plane of the
spurs are made that lie at the incisal
area of lat incisors
Crossover bends are made on either
side of the lateral incisor bracket to
permit the auxillary to pass over the
base wire
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13. B.
torquing boxes on the canines for
lingual root torque: Boxes can be provided
The ends of the auxillary need not
extend beyond the canine area
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14. Some other torquing auxillary
1.
Single root torquing auxillary :
it is useful design for any teeth except
molars.
It is particularly indicated on upper
premolar
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15. 2.reciprocal
torquing auxillary (SPEC)
design.
It is employed when teeth require
torque in opposite directions.
It is made in lighter 0.009” or 0.010”
size wire if uded in stage I & II
If needed for the stage III it should be
made in 0.012”
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16. 3.
Reverse torquing auxillary for
cntrolling the roots of canine or
premolars.
Designed by Franciskus Tan in 1987
It is used for labial root movement of
palatally impacted canine.
For lingual root torque it is inverted.
It is made from 0.012”P wire in
conjunction with 0.018” or 0.020” base
wire
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17. In
order to resist the palatal root torque
on the molar that arises as a reaction
from the auxillary the molars are
stabilized with the help of TPA.
4.
Buccal root torque on the molars.an
additional auxillary made in 0.014” size
wire isfitted in a round molar tubes.
It has boot design occlusal extensions
on the molars.
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18. The
auxillary need not be engaged in
other brackets.
5.
Labial root torque only on the lateral
incisors: It is used for reducing the prominence
of the canine roots
It is made from0.012” size arch wire
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19. Uprighting springs in new
australian wires The
0.014” size wire was used earlier
but now 0.009” supreme grade wire is
used.
Advantages Very light continious forces.
Less taxation on the anchorage
Ease in maintaining mouth hygeine and
better esthetics.
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20. The
new springs differ from the older
springs in the following respects The coil of the spring is only twice the
size of the wire; in contrast to the size of
the former springs that was 4 times the
wire diameter.
The stem of the spring runs tangential
to the coil, unlike the previous springs in
which the stem was radial to the coil.
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21. 1oo%
activation; the stem and active
arm are in one line ie making an angle
of 180 compared to the earlier 135
angulation
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22. Securing
the springs
The ligature wire is passed through the
bracket in front of the archwireand then
passed behind the archwire outside the
bracket and the two ends are twisted
together.
The ligture tied in this fashion will leave
just enough space for insertion of the
spring stem, thus ensuring a snug fit.
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23. Size of the coil- Mini Maxi or
midi
Newer
springs- mini springs
Conventionasl springs- maxi spring
The coil of the spring is very small.
The coils can be made bigger by winding it
around the0.9mm spring winder tip.- midi
spring.
These are generally made in 0.010” for
incisors.
0.012” canines and premolars.
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24. How to prepare a Spring winder?
2
pieces of wires are embeded in a cylindrical
acrylic handle
One wire is kept at axial centre.
The other is kept at the side of the main arch
wire.
Both are seperated by a distance of aout
1mm.
The diameter of the coil would be equal to the
diameter of this projecting wire.
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25. Project Goals
Ultimate
goal of project
Relationship to other projects
High-level timing goals
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26. Description
Describe
the project in non-technical
terms.
Use following slides for discussing
status, schedules, budget, etc.
FOR MORE INFO...
List location or contact for specification (or other related
documents) here
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27. Competitive Analysis
Competitors
– (You may want to allocate one slide per
competitor)
Strengths
– Your strengths relative to competitors
Weaknesses
– Your weaknesses relative to competitor
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28. Competitive Analysis, Cont.
Competitors
Strengths
Weaknesses
FOR MORE INFO...
List location or contact for competitive analysis (or other
related documents) here
www.indiandentalacademy.com
29. Technology
New
technology being used
– Benefits
Standards
being adopted
– Benefits
Standards
specifically being ignored
– Drawbacks & benefits
DYA: define your acronyms!
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30. Team/Resources
State
assumptions about resources
allocated to this project
– People
– Equipment
– Locations
– Support & outside services
– Manufacturing
– Sales
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31. Procedures
Highlight
any procedural differences
from regular projects of this type
Discuss requirements, benefits, and
issues of using new procedures
FOR MORE INFO...
List location or contact for procedures document (or other
related documents) here
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32. Schedule
Review
high-level schedule
milestones here
Phase 1
Phase 2
Phase 3
Jan
Feb
Mar
Apr
May
Jun
July
Sep
Oct
Nov
Dec
FOR MORE INFO...
List location or contact for detailed schedule (or other related
documents) here
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33. Current Status
High-level
overview of progress
against schedule
– On-track in what areas
– Behind in what areas
– Ahead in what areas
Unexpected
delays or issues
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34. Related Documents
Marketing
plan
– Location or contact name/phone
Budget
– Location or contact name/phone
Post
mortem
– Location or contact name/phone
Submit
questions
– Location or contact name/phone
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35. Thank you
For more details please visit
www.indiandentalacademy.com
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