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

www.indiandentalacademy.com
www.indiandentalacademy.com
OVERVIEW
 INTRODUCTION.
 HISTORICAL PRESPECTIVE.
 PHYSICAL AND MECHANICAL
PROPERTIES.


www.indiandentalacademy.com
INTRODUCTION
The materials used by orthodontists have changed
rapidly in recent years and will continue to do so in
the fu...
Ideally, archwire are designed to move teeth with
light, continuous forces. Such forces may reduce the
potential for patie...
Among them are esthetics, biohostability,
friction, formability, weldability, resilience, and
springback.

Currently, orth...
HISTORICAL PRESPECTIVE
Gold alloys were first used in orthodontic practice,
although these noble metal wires have minimal
...
With the advent of Stainless steels in World War I
and the refinement of drawing processes to form wires
in the late 1930s...
PHYSICAL AND MECHANICAL
PROPERTIES
STRESS: It is a internal distribution of the load
measured as force per unit area.
STRA...
SPRING BACK: spring back is a measure of how far
a wire can deflect without permanent deformation.
STIFFNESS: It is a meas...
FORMABILITY: The ability to bend a wire into desired
configuration into loop, coil and stops without
fracturing the wire.
...
SRESS RELAXATION: When a specimen has been
deformed and held in a fixed position the stress may
diminish, with time this i...
PHASE TRANSFORMATION: A change in the number
and/or character of the phases that constitute the
microstructure of an alloy...
EFFCT OF SIZE AND SHAPE ON
ELASTIC PROPERTIES
Major elastic properties namely-Strength, stiffness
and range is substantial...
EFFECT OF DIAMETER OR CROSS-SECTION

Add fig 10-12 pg 335 proffit

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EFFECT OF LENGTH AND ATTACHMENT
If length of cantilever beam is doubled, its bending
strength becomes ½ , and springiness ...
Add fig pg 336 proffit

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EFFECT OF CHANGING VARIOUS ASPECT
OF ARCHWIRE

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FROM
WILLIAM.R.PROFFIT
II edition
www.indiandentalacademy.com
This alloy consists of 18%chromium ,8%nickel
alloyed with austenitic type of stainless steel.
Cr and ni maintains the aust...
BRAIDED AND TWISTED WIRES
Very small diameter s.s wire can be braided or
twisted together by the manufacturer to form wire...
Used at the beginning of the treatment to align
labiolingually displaced or rotated anterior teeth.
These wires are availa...
They are available in both round and rectangular
shape.
Different type of multi-stranded wires are available
1. Triple str...
Stainless steel arch-wire with
soldered brass wire
Used for sliding mechanics
ADVANTAGES
Minimal chair side time.
More eff...
DISADVANTAGES
Confusion concerning ideal force level.
Tendency to over activate elastic forces.
Insufficient force.
Damage...
AUSTRALIAN ORTHODONTIC ARCH WIRE
Claude Arthur j wilcock produced this wire for
Dr.P.R.Begg
The unique charecteristics of ...
All these properties make this wire very hard
and brittle.
MANUFACTURING PROCEDURE
pulse straightening the wire is pulsed ...
PROPERTIES OF WIRE
1. The tensile strength of the P.S wire is 8-12% higher
than of S.S so greater resistance to fracture.
...
GRADING AND COLOUR CODING
- OLDER WIRES
1. REGULAR GRADE- WHITE LABEL
2. REGULAR PLUS- GREEN LABEL
3. SPECIAL GRADE- BLACK...
NEWER WILCOCK WIRES
Newer grade of wires came to market with superior
properties with advent in manufacturing process
they...
PREMIUM GRADE
They are more difficult to bend, occasional breakage
to be expected.
They are efficient to open the bite.
PR...
SUPREME
Supreme grade wires are used to unravel crowding
of ant. teeth,maa,mini uprightining springs
They have resistance ...
Triangular Wire
The new stainless steel Tri-Angle wire is an
equilateral triangle in cross-section, .030" to a side,
with ...
The round wire can act as a wedge to cause
inter-proximal spacing, which can disrupt the
occlusion, with a potentially adv...
Bonded lingual retainers

Special plier for Tri-ang wire bending
www.indiandentalacademy.com
NICKEL TITANIUM WIRES
Andersen G.F and co workers introduced the
use of NITI alloys for orthodontic use in 1970s
It consis...
UNIQUE PROPERTIES
Shape memory effect - The combination of
thermoelasticity and pseudoelasticity in which,
following a for...
Thermoelasticity - The thermal analog of
pseudoelasticity in which the martensitic phase
transformation occurs from austen...
2.Austenitic- On heating As and Af are temp. at
which the transformation to austenite begins and
Compeleted.
3.Rhombohedra...
SUPER ELASTIC WIRES
Nitinol wire is work hardened during the
manufacturing process which induces the martenistic
phase int...
Upon deactivation the reverse phase
transformation from martenistic to austenitic
structure takes place.
It is thus necess...
Since the stiffnes increases and the wire
becomes more efficient towards the end of the
movement the clinician should not ...
The original super elastic arch wires ,the round
sentalloy wires are available in light,medium,and
heavy force levels.
Neo...
The new bio force ion guard has 3micron
nitrogen coating that is produced by ion
bombardment of wire surface which reduces...
CHINESE NITI
In1985 dr. burstone c.j. reportedof an alloy the
chinese ni-ti developed by dr.tien hua chang.
This alloy has...
3 POINT DEFLECTION TEST

www.indiandentalacademy.com
Because of this high range of action and spring
back chinese ni-ti is applied when large deflections
are required.
It has ...
JAPANESE NITI
In 1986 miura f.etal reported Japanese NITI
,developed by furukowa electric comp.ltd. japan.in
1978
It posse...
It generates a physiological tooth movement bcoz of
relatively constant force delivered for a long period of
time during t...
The chinese ni-ti and japanese ni-ti have a basic
austenitic grain structure and have a advantage of
transition in the int...
www.indiandentalacademy.com
www.indiandentalacademy.com
www.indiandentalacademy.com
In 1993, Hanson combined the mechanical
advantages of multistranded cables with the
material properties of superelastic wi...
FORCE DELIVERY TEST
A three-point bending test was carried out to
compare the force delivery of .016", .018", and .020“
Su...
STUDY RESULTS
.016" and .018" Supercable wires exerted only
36-70% of the force of .014" solid nickel titanium
wires.
Comp...
CLINICAL USES OF SUPER CABLE
.016" and .018" Supercable wires were the only
ones that tested at less than 100g of unloadin...
Relatively large archwire like 0.18” can be placed
at the starting of treatment.
When cutting Supercable, always use a sha...
ADVANTAGES
• Improved treatment efficiency.
• Simplified mechanotherapy.
• Elimination of archwire bending.]
• Flexibility...
• A light, continuous level of force, preventing any
adverse response of the supporting periodontium.
• Minimal patient di...
DISADVANTAGES
• Tendency of wire ends to fray if not cut with sharp
instruments.
• Tendency of archwires to break and unra...
It is a new orthodontic wire designed by M.F.TALASS
It has high esthetic apperance with unique mechanical
properties. (man...
2. A silicon resin middle layer that protects the core
from moisture and adds strength.
3. A stain-resistant nylon outer l...
Mechanical properties
It has wide range of action and the ability to apply
light, continuous force.
Sharp bends must be av...
It is a highly resilient archwire that is especially
effective in the alignment of crowded teeth.

Optiflex possess 5 adva...
optiflex is very effective in moving the teeth using
light continuous force. It exerts about ½ the
force in comparison wit...
When using optiflex, certain precautions
should be undertaken
Optiflex arch wires must be tied into the bracket
with elast...
It is recommended to use the (501) mini distal end
cutter. (AEZ) This cutter is especially designed to cut
all 3 layers of...
Clinical applications
It is used in adult patient who wishes that their
braces not be really visible for reason related to...
Optiflex can be used in pre-surgical stage in cases,
which require orthodontic intervention.
Optiflex arch wire combined w...
Marsenol is a tooth colored nickel titanium wire
manufactured by glenroe technologies.It is E.T.E.
coated nickel titanium....
The coating adhesive to the wire remains flexible.
The wire delivers constant forces over long periods
activation and is f...
LEE WHITE WIRE
Lee white wire, manufactured by Lee
pharmaceuticals is resilient stainless steel or
nickel titanium arch wi...
organic polymer retainer wire made from 1.6mm
diameter round polytheline terephthalate.
This material can be bent with a p...
In prefabricating the QCM retainer wires, the anterior
portion of the wire and the “wave” portion are
heat-treated at abou...
Wire after heat-treated it displayed little deformation.
More shrinkage during heating was observed in the
posterior segme...
3.

4.

5.

www.indiandentalacademy.com
QMC WITH METAL POSTERIOR PORTION
1

2

3

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QMC WITH ACTIVATIONLOOP

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New Version of Esthetic Retainer (QMC)
New esthetics organic polymer.
The new version, easy to fabricate and fit to the
de...
It consists :
- Anterior plastic part
- A flat organic polymer wire with 10° labial torque
is attached to 0.032” stainless...
Thank you
For more details please visit
www.indiandentalacademy.com

www.indiandentalacademy.com
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Recent advances in orthodontic wires /certified fixed orthodontic courses by Indian dental academy

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The Indian Dental Academy is the Leader in continuing dental education , training dentists in all aspects of dentistry and offering a wide range of dental certified courses in different formats.

Indian dental academy provides dental crown & Bridge,rotary endodontics,fixed orthodontics,
Dental implants courses.for details pls visit www.indiandentalacademy.com ,or call
0091-9248678078

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Recent advances in orthodontic wires /certified fixed orthodontic courses by Indian dental academy

  1. 1. INDIAN DENTAL ACADEMY Leader in continuing dental education www.indiandentalacademy.com www.indiandentalacademy.com
  2. 2. www.indiandentalacademy.com
  3. 3. OVERVIEW  INTRODUCTION.  HISTORICAL PRESPECTIVE.  PHYSICAL AND MECHANICAL PROPERTIES.  www.indiandentalacademy.com
  4. 4. INTRODUCTION The materials used by orthodontists have changed rapidly in recent years and will continue to do so in the future. As esthetic composite archwires are introduced, metallic archwires will likely be replaced. Because an ideal material has not yet been found, archwires should be selected within the context of their intended use during treatment. www.indiandentalacademy.com
  5. 5. Ideally, archwire are designed to move teeth with light, continuous forces. Such forces may reduce the potential for patient discomfort, tissue hyalinization and undermining resorption When force is applied, the archwire should behave elastically over a period of weeks to months. several properties and characteristics should be considered in the search for the ideal archwire. www.indiandentalacademy.com
  6. 6. Among them are esthetics, biohostability, friction, formability, weldability, resilience, and springback. Currently, orthodontists principally use wires of four major base metal alloys types: Stainless steel Cobalt-chromium-nickel, Nickel-titanium and Beta-titanium www.indiandentalacademy.com
  7. 7. HISTORICAL PRESPECTIVE Gold alloys were first used in orthodontic practice, although these noble metal wires have minimal use currently because of their greater cost. Their compositions were similar to base metal wires precisely to IV gold casting alloy Gold alloy wires had elastic force was much less than that of S.S. www.indiandentalacademy.com
  8. 8. With the advent of Stainless steels in World War I and the refinement of drawing processes to form wires in the late 1930s, gold archwires gradually lost favor to the smaller cross-sectional areas that stainless steel archwires can produce. By 1950s stainless steel alloy was used by most of the orthodontist It has low cost, excellent formability and good mechanical property. www.indiandentalacademy.com
  9. 9. PHYSICAL AND MECHANICAL PROPERTIES STRESS: It is a internal distribution of the load measured as force per unit area. STRAIN: It is the internal distortion produced by the load ,force defined as deflection per unit area. PROPORTIONAL LIMIT OR ELASTIC LIMIT :The point at which first elastic deformation occurs LDR OR STIFFNESS: For a given force deflection within the elastic limit is known as LDR www.indiandentalacademy.com
  10. 10. SPRING BACK: spring back is a measure of how far a wire can deflect without permanent deformation. STIFFNESS: It is a measure of amount of force Required to produce a specific deformation. STRENGTH: STIFFNESS X RANGE RESILIENCE: Represents energy stored capacity of wire which is a combination of strength and springness www.indiandentalacademy.com
  11. 11. FORMABILITY: The ability to bend a wire into desired configuration into loop, coil and stops without fracturing the wire. FLEXIBILITY: The amount which a wire can be strained under going plastic deformation ZERO STRESS RELAXATION: This the ability of the wire to deliver constant high elastic force when subjected to external force or force of occlusion. www.indiandentalacademy.com
  12. 12. SRESS RELAXATION: When a specimen has been deformed and held in a fixed position the stress may diminish, with time this is called as stress relaxation COLD-WORKING: The process of plastically deforming a metal at a temperature below that at which it recrystallizes new grains, which is usually one-third To one-half times its absolute melting point temperature HEAT TREATMENT: General process of using Thermal energy to change the characteristics of metallicalloys as in tempering, precipitation hardening , or annealing (a high-temperature, softening process). www.indiandentalacademy.com
  13. 13. PHASE TRANSFORMATION: A change in the number and/or character of the phases that constitute the microstructure of an alloy by a change in crystalline structure. RANGE - The distance that an archwire can be activated by a specific force, this distance is termed the “working” range. -With regard to elastic property ratios the distance that an archwire can be activated elastically i.e., its elastic range. www.indiandentalacademy.com
  14. 14. EFFCT OF SIZE AND SHAPE ON ELASTIC PROPERTIES Major elastic properties namely-Strength, stiffness and range is substantially effected by a change in the geometry of beam. Cross-section (circular, rectangular or square) and length of the beam are of great significance in determining its properties www.indiandentalacademy.com
  15. 15. EFFECT OF DIAMETER OR CROSS-SECTION Add fig 10-12 pg 335 proffit www.indiandentalacademy.com
  16. 16. EFFECT OF LENGTH AND ATTACHMENT If length of cantilever beam is doubled, its bending strength becomes ½ , and springiness increases by 8 times Length effect on torsion quite differently -springiness and range as length increases -Torsional strength is not effected by length Supported beam on both end has more strength but less springiness www.indiandentalacademy.com
  17. 17. Add fig pg 336 proffit www.indiandentalacademy.com
  18. 18. EFFECT OF CHANGING VARIOUS ASPECT OF ARCHWIRE www.indiandentalacademy.com FROM WILLIAM.R.PROFFIT II edition
  19. 19. www.indiandentalacademy.com
  20. 20. This alloy consists of 18%chromium ,8%nickel alloyed with austenitic type of stainless steel. Cr and ni maintains the austenite at room temp.And prevents the conversion fcc structure of austenite to martenisitic cubic lattice structure. By nature austenite is malleable and ductile and martenisite is hard and brittle www.indiandentalacademy.com
  21. 21. BRAIDED AND TWISTED WIRES Very small diameter s.s wire can be braided or twisted together by the manufacturer to form wires for clinical orthodontics. Separate strands may be as small as 0.005 or 0.010, comprised of five or seven wrapped around a central wire of same diameter. It affords extreme flexibility and delivers extremely light forces, full engagement of the arch wire at an early stage. www.indiandentalacademy.com
  22. 22. Used at the beginning of the treatment to align labiolingually displaced or rotated anterior teeth. These wires are available with bright smooth finish to give minimal friction. They resist permanent deformation and not unravel when cut. They are cost efficient wires in comparison to titanium wires. www.indiandentalacademy.com
  23. 23. They are available in both round and rectangular shape. Different type of multi-stranded wires are available 1. Triple stranded – 3 wires twisted 2. Coaxial – 5 wires wrapped around a core wire 3. Braded – 8 strand rectangular wire. www.indiandentalacademy.com
  24. 24. Stainless steel arch-wire with soldered brass wire Used for sliding mechanics ADVANTAGES Minimal chair side time. More efficient sliding of arch wire through posterior slot No running out of space for activation www.indiandentalacademy.com
  25. 25. DISADVANTAGES Confusion concerning ideal force level. Tendency to over activate elastic forces. Insufficient force. Damaged or crushed bracket inhibits sliding. Cortical bone resistance due to thinning of bone at extraction site. www.indiandentalacademy.com
  26. 26. AUSTRALIAN ORTHODONTIC ARCH WIRE Claude Arthur j wilcock produced this wire for Dr.P.R.Begg The unique charecteristics of this wire are it is high Tensile austenitic stainless steel. The wire is resistant to permanent deformation , maintaining its activation for max. control of anchorage. www.indiandentalacademy.com
  27. 27. All these properties make this wire very hard and brittle. MANUFACTURING PROCEDURE pulse straightening the wire is pulsed in a special machine which permits high tensile wires to be straightened and drawn in as smaller diametres as possible. The material yeild strength is not altered and the surface has smoother finish so less friction. www.indiandentalacademy.com
  28. 28. PROPERTIES OF WIRE 1. The tensile strength of the P.S wire is 8-12% higher than of S.S so greater resistance to fracture. 2. The LDR was high by 10%for 0.016 ps wire and by 235% to 0.020premium wires indicates that when used for intrusion they deliver significant higher loads 3. High working range and good recovery patterns. 4. Frictional resistence of ps wires were lesser by 50%than s.s wires. www.indiandentalacademy.com
  29. 29. GRADING AND COLOUR CODING - OLDER WIRES 1. REGULAR GRADE- WHITE LABEL 2. REGULAR PLUS- GREEN LABEL 3. SPECIAL GRADE- BLACK LABEL 4. SPECIAL PLUS- ORANGE LABEL 5. EXTRA SPECIAL PLUS- BLUE LABEL www.indiandentalacademy.com
  30. 30. NEWER WILCOCK WIRES Newer grade of wires came to market with superior properties with advent in manufacturing process they are1. PREMIUM - PURPLE 2. PREMIUM PLUS – GOLD 3. SUPREME - BEIGE www.indiandentalacademy.com
  31. 31. PREMIUM GRADE They are more difficult to bend, occasional breakage to be expected. They are efficient to open the bite. PREMIUM PLUS The 0.014 premium plus wire is used in high angle cases to prevent undue molar extrusion and due to less dia.donot produce much force and and ant intrusion(not effective) which is favourable in such cases. www.indiandentalacademy.com
  32. 32. SUPREME Supreme grade wires are used to unravel crowding of ant. teeth,maa,mini uprightining springs They have resistance and yeild diameter near to NI-TI wires and cost wise they are more economic. when used as MAA the lighter forces produced do not tax the anchorage. www.indiandentalacademy.com
  33. 33. Triangular Wire The new stainless steel Tri-Angle wire is an equilateral triangle in cross-section, .030" to a side, with rounded edges. One of the best uses for Tri-Ang wire is in retainers and other removable orthodontic appliances. Various types of clasps made of round wire usually cross the occlusion, creating interferences that can cause patient discomfort. www.indiandentalacademy.com JCO,2001 BY - BROUSSARD
  34. 34. The round wire can act as a wedge to cause inter-proximal spacing, which can disrupt the occlusion, with a potentially adverse effect on longterm stability. Comfort , periodontal health, and appliance stability. www.indiandentalacademy.com
  35. 35. Bonded lingual retainers Special plier for Tri-ang wire bending www.indiandentalacademy.com
  36. 36. NICKEL TITANIUM WIRES Andersen G.F and co workers introduced the use of NITI alloys for orthodontic use in 1970s It consists of conventional NITI (55% nickel 45%titanium) ,resulting in 1 : 1 ratio of these elements,cobalt is added to achieve desirable properties. www.indiandentalacademy.com
  37. 37. UNIQUE PROPERTIES Shape memory effect - The combination of thermoelasticity and pseudoelasticity in which, following a force-induced phase transformation, the reverse transformation occurs, when the archwire temperature is increased to oral temperature Pseudoelasticity - The mechanical analog of thermoelasticity in which, at constant temperature, the austenitic-to-martensitic phase transformation occurs with increasing applied force. As the force is subsequently removed, the reverse phase transformation occurs. www.indiandentalacademy.com
  38. 38. Thermoelasticity - The thermal analog of pseudoelasticity in which the martensitic phase transformation occurs from austenite as the temperature is decreased. This phasetransformation can be reversed by increasing the temperature to its original value. Phase transformation temperature – 1. Martensitic- on cooling ,Ms and Mf temperature are the temp. at which the transformation to martensite begins and is completed. www.indiandentalacademy.com
  39. 39. 2.Austenitic- On heating As and Af are temp. at which the transformation to austenite begins and Compeleted. 3.Rhombohedral- It is a intermediate R-phase which is formed during Martensite-Austenite phase, it also has Rs and Rf phase. www.indiandentalacademy.com
  40. 40. SUPER ELASTIC WIRES Nitinol wire is work hardened during the manufacturing process which induces the martenistic phase into the alloy hence super elasticity is not exhibited by the nitinol wire. The super elastic property of some niti wires has been attributed to phase transformation from Austenitic form to Martenistic form of niti when stress reaches certain level during activation. www.indiandentalacademy.com
  41. 41. Upon deactivation the reverse phase transformation from martenistic to austenitic structure takes place. It is thus necessary for the manufacturer to leave ni-ti in austenitic structure for super elastic behaviour. The new super elastic ni ti (a-ni-ti) wires are significantly different from earlier work hardened ni ti(m-ni-ti)and from s.s The combination of super elasticity and shape memory makes these archwires comfortable for the patients even as rect. intial arch wires. www.indiandentalacademy.com
  42. 42. Since the stiffnes increases and the wire becomes more efficient towards the end of the movement the clinician should not change the wire too often,a two month appoint. interval is sufficient or remove and place the same arch wires at monthly interval which will return them to their intial activation level. Intial rect super elastic wires fully engaged for rotation correction, alignment,levelling. www.indiandentalacademy.com
  43. 43. The original super elastic arch wires ,the round sentalloy wires are available in light,medium,and heavy force levels. Neo-sentalloy wires at levels of 100,200,300 grams of forces. The second generation ,squre or rectangular bio force wires provides 80 gm of force in central incisor region for tooth alignment and as much as 320gm of force in molar region for initial leveling. www.indiandentalacademy.com
  44. 44. The new bio force ion guard has 3micron nitrogen coating that is produced by ion bombardment of wire surface which reduces friction, breakage and nickel release. The most versatile wire of simultaneous alignment and leveling. www.indiandentalacademy.com
  45. 45. CHINESE NITI In1985 dr. burstone c.j. reportedof an alloy the chinese ni-ti developed by dr.tien hua chang. This alloy has unique charecteristics and offers significant potential in the design of orthodontic appliances. It has low TTR than nitinol its history of little work hardening in a parent phase which is austenitic yield mechanical properties that differ significantly from nitinol. www.indiandentalacademy.com
  46. 46. 3 POINT DEFLECTION TEST www.indiandentalacademy.com
  47. 47. Because of this high range of action and spring back chinese ni-ti is applied when large deflections are required. It has sprinback that is 4.4 times more compared to stainless steel and 1.6 times that of nitinol. Stiffness of this wire is 73%that of s.s and 36% that of nitinol. These wires are highly suitable if low stiffness is required and large deflections are needed. www.indiandentalacademy.com
  48. 48. JAPANESE NITI In 1986 miura f.etal reported Japanese NITI ,developed by furukowa electric comp.ltd. japan.in 1978 It posses excellent spring back ,shape memory ,super elasticity. The delivered a constant force over an extended portion of deactivation range and less likely to under go permanent deformation. www.indiandentalacademy.com
  49. 49. It generates a physiological tooth movement bcoz of relatively constant force delivered for a long period of time during the deactivation of the wire This super elasticity can be produced by stress and not by temp.difference Heat treatment at 500deg centigrade for 5 minutes produced optimum super elasticity,this method is inconvenient for clinical use So, anew type of heat treatment reported by fujio miura which is known as derht(direct electric resistence heat treatment) www.indiandentalacademy.com
  50. 50. The chinese ni-ti and japanese ni-ti have a basic austenitic grain structure and have a advantage of transition in the internal structure with out requiring a significant temp. change to accomplish this. www.indiandentalacademy.com
  51. 51. www.indiandentalacademy.com
  52. 52. www.indiandentalacademy.com
  53. 53. www.indiandentalacademy.com
  54. 54. In 1993, Hanson combined the mechanical advantages of multistranded cables with the material properties of superelastic wires to create a superelastic nickel titanium coaxial wire. This wire, called Supercable, comprises seven individual strands that are woven together in a long, gentle spiral to maximize flexibility and minimize force delivery. JCO 1998 ,BY- JEFF BERGER www.indiandentalacademy.com
  55. 55. FORCE DELIVERY TEST A three-point bending test was carried out to compare the force delivery of .016", .018", and .020“ Supercable with that of common nickel titanium initial archwires. Instron universal testing machine was used for load deflection test. All arch wires were loaded with a maximum deflection of 4 mm, and then unloaded slowly www.indiandentalacademy.com
  56. 56. STUDY RESULTS .016" and .018" Supercable wires exerted only 36-70% of the force of .014" solid nickel titanium wires. Comparing wires of the same diameter, .016" Supercable demonstrated 65% less force than . 016" solid superelastic wires while .018" Supercable exerted 78% less force than .018“ solid superelastic archwires. www.indiandentalacademy.com
  57. 57. CLINICAL USES OF SUPER CABLE .016" and .018" Supercable wires were the only ones that tested at less than 100g of unloading force over a deflection range of 1-3mm. Supercable thus demonstrates optimum orthodontic forces for the periodontium, as described by Reitan and Rygh. www.indiandentalacademy.com
  58. 58. Relatively large archwire like 0.18” can be placed at the starting of treatment. When cutting Supercable, always use a sharp distal end cutter (No. 619). A dull cutter tends to tear the component wires and thus unravel the wire ends. END STOP www.indiandentalacademy.com
  59. 59. ADVANTAGES • Improved treatment efficiency. • Simplified mechanotherapy. • Elimination of archwire bending.] • Flexibility and ease of engagement regardless of crowding. • No evidence of anchorage loss. www.indiandentalacademy.com
  60. 60. • A light, continuous level of force, preventing any adverse response of the supporting periodontium. • Minimal patient discomfort after initial archwire placement. • Fewer patient visits, due to longer archwire activation. www.indiandentalacademy.com
  61. 61. DISADVANTAGES • Tendency of wire ends to fray if not cut with sharp instruments. • Tendency of archwires to break and unravel in extraction spaces • Inability to accommodate bends, steps, or helices. • Tendency of wire ends to migrate distally and occasionally irritate soft tissues as severely crowded or displaced teeth begin to align. www.indiandentalacademy.com
  62. 62. It is a new orthodontic wire designed by M.F.TALASS It has high esthetic apperance with unique mechanical properties. (manufactured by ORMCO) It is made of clear optical fiber, it comprises 3 layers 1. A silicon dioxide core that provides the force for moving teeth. JCO,1992 BY- M.F.TALASS www.indiandentalacademy.com
  63. 63. 2. A silicon resin middle layer that protects the core from moisture and adds strength. 3. A stain-resistant nylon outer layer that prevents damage to the wire and further increases its strength. The wire can be either round or rectangular and is manufactured in various sizes. www.indiandentalacademy.com
  64. 64. Mechanical properties It has wide range of action and the ability to apply light, continuous force. Sharp bends must be avoided, since they could fracture the core. Optiflex has practically no deformation. www.indiandentalacademy.com
  65. 65. It is a highly resilient archwire that is especially effective in the alignment of crowded teeth. Optiflex possess 5 advantages, in terms of esthetics Optiflex is the most esthetic orthodontic arch wire. Optiflex is completely stain resistant. The arch wire will not stain or loose its clean look even after several weeks in the mouth. www.indiandentalacademy.com
  66. 66. optiflex is very effective in moving the teeth using light continuous force. It exerts about ½ the force in comparison with other wire. Optiflex is very flexible and can be used in severely crowded teeth. Due to its superior mechanical properties, optiflex can be used with any bracket system. www.indiandentalacademy.com
  67. 67. When using optiflex, certain precautions should be undertaken Optiflex arch wires must be tied into the bracket with elastomeric ligatures. Metal ligatures should never be used since they fracture the glass core. Sharp bend similar to those placed in metal arch wire should never be attempt with optiflex. These bends will immediately fracture the core. www.indiandentalacademy.com
  68. 68. It is recommended to use the (501) mini distal end cutter. (AEZ) This cutter is especially designed to cut all 3 layers of optiflex in the proper manner. Inform your patient about the nature of optiflex and its structure.Make sure they understand that rough diet can harm the arch wire and delay treatment progress. Do not “cinch back” optiflex. You really don’t need an cinch back since friction between elastomeric ligatures and the outer surface of the arch wire will eliminate unwanted sliding of the arch wire. www.indiandentalacademy.com
  69. 69. Clinical applications It is used in adult patient who wishes that their braces not be really visible for reason related to personal concern or professional consideration. It should be used in non-extraction cases as, it is not the ideal wire for cuspid retraction in extraction cases optiflex has been disappointed in retracting canine due to its limited ability to control the distal tipping and labio lingual rotation of the retracted www.indiandentalacademy.com cuspids.
  70. 70. Optiflex can be used in pre-surgical stage in cases, which require orthodontic intervention. Optiflex arch wire combined with translucent brackets to create ultimate esthetics appliance. Optiflex is available in 6 to 10 inch straight lengths of 0.017”and 0.021” Optiflex arch wire showed low load deflection rates reaching the proportional limit much earlier when compared to other wires (braided stainless steel, niti, cooper niti), It exerts 0.4698 grams for a defection of 4.46 mm. www.indiandentalacademy.com
  71. 71. Marsenol is a tooth colored nickel titanium wire manufactured by glenroe technologies.It is E.T.E. coated nickel titanium. (Elastomeric poly tetra flor ethylene emulsion). Marsenol exhibits all same working characteristics of an uncoated super elastic nickel titanium wire. www.indiandentalacademy.com
  72. 72. The coating adhesive to the wire remains flexible. The wire delivers constant forces over long periods activation and is fracture resistant. Leveling by extrusion (relative intrusion) Exaggerated curve of spee in the maxillary arch wire and reverse curve of spee is placed in the lower arch wire www.indiandentalacademy.com REVERSE CURVE ARCH WIRE
  73. 73. LEE WHITE WIRE Lee white wire, manufactured by Lee pharmaceuticals is resilient stainless steel or nickel titanium arch wire bonded to a tooth colored Epoxy coating, suitable for use with ceramic and plastic. The epoxy is completely opaque and does not chip, peel, stain or discolors. www.indiandentalacademy.com
  74. 74. organic polymer retainer wire made from 1.6mm diameter round polytheline terephthalate. This material can be bent with a plier, but will return to its original shape if it is not heat–treated for a few seconds at temperature less than 230°C (melting point). JCO,1996 BY- MIEKO WATANABE www.indiandentalacademy.com
  75. 75. In prefabricating the QCM retainer wires, the anterior portion of the wire and the “wave” portion are heat-treated at about 150°C immediately after bending. Patients who have worn esthetic ceramic or plastic brackets during orthodontic treatment are likely to want esthetic retainers after treatment, so these wires are used for esthetic maxillary retainers Various parts of QMC retainer www.indiandentalacademy.com
  76. 76. Wire after heat-treated it displayed little deformation. More shrinkage during heating was observed in the posterior segment of the arch wire. QMC WRAP-AROUND RETAINER STEPS IN FABRICATION 2. 1. www.indiandentalacademy.com
  77. 77. 3. 4. 5. www.indiandentalacademy.com
  78. 78. QMC WITH METAL POSTERIOR PORTION 1 2 3 www.indiandentalacademy.com
  79. 79. QMC WITH ACTIVATIONLOOP www.indiandentalacademy.com
  80. 80. New Version of Esthetic Retainer (QMC) New esthetics organic polymer. The new version, easy to fabricate and fit to the dental arch. It requires no special tools or instruments only and ordinary hair dyer. www.indiandentalacademy.com
  81. 81. It consists : - Anterior plastic part - A flat organic polymer wire with 10° labial torque is attached to 0.032” stainless steel posterior arms, each 11cm long. Plastic portion comes in three intercanine widths, with or without activating omega loops in the posterior arms. www.indiandentalacademy.com
  82. 82. Thank you For more details please visit www.indiandentalacademy.com www.indiandentalacademy.com

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