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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Orthodontic wires /certified fixed orthodontic courses by Indian dental academy

  1. 1. INDIAN DENTAL ACADEMY Leader in continuing dental education www.indiandentalacademy.com ORTHODONTIC WIRES www.indiandentalacademy.com
  2. 2. CLASSIFICATION.  BASED ON MATERIAL USED        GOLD STAINLESS STEEL CHROME COBALT NICKEL TITANIUM BETA TITANIUM MULTI STRANDED ARCH WIRES TOOTH COLOURED ARCH WIRES (opti flex) www.indiandentalacademy.com
  3. 3. BASED ON CROSS-SECTION  ROUND  SQUARE  RECTANGULAR www.indiandentalacademy.com
  4. 4. GOLD ALLOYS  The composition of the alloys used in gold orthodontic wires is similar to the type IV gold casting alloys .USED BEFORE 1930.  These wires can be potentially strengthened with the proper heat treatment, although they are typically used in as cold drawn condition. www.indiandentalacademy.com
  5. 5.  ACCORDING TO AMERICAN DENTAL ASSOCIATION GOLD WAS CLASSIFIED INTO 2 TYPES  TYPE I- INCREASED GOLD CONTENT  TYPE II-RELATIVELY LESSER AMOUNT OF GOLD. www.indiandentalacademy.com
  6. 6. COMPOSITION. GOLD 55-65% COPPER 11-18% SILVER 1-25% NICKEL 5-10% www.indiandentalacademy.com
  7. 7. ADVANTAGES  HIGLY FORMABLE  CAPABLE OF DELIVERING LOWER LEVEL OF FORCES THAN STAINLESS STEEL.  CAN BE EASILY JOINED BY SOLDERING AND JOINTS ARE HIGLY CORROSION RESISTANT. www.indiandentalacademy.com
  8. 8. DISADANTAGES.  Gold alloys typically have yield strengths in the lower end of the range, which limits spring back .  Very ductile  Increasing cost . www.indiandentalacademy.com
  9. 9. STAINLESS STEEL  In the 1940's Austenitic stainless steel began to displace gold as the primary alloy for orthodontic wires.  The most commonly used types are 302 and 304 stainless steel  It is most commonly used material for orthodontic wires. www.indiandentalacademy.com
  10. 10. COMPOSITION. IRON 73-74% CHROMIUM 18% NICKEL 8% CARBON 0-0.2% www.indiandentalacademy.com
  11. 11. www.indiandentalacademy.com
  12. 12. Advantages  High yield strength  High resilience  Good formability  Bio compatible  Economical www.indiandentalacademy.com
  13. 13. Disadvantages  High stiffness so lower springiness that nickel titanium  More frequent activations are required to maintain the force levels. www.indiandentalacademy.com
  14. 14. AUSTRALIAN ORTHODONTIC ARCH WIRES.  A.J. Wilcock produced orthodontic arch wire  The wire produced has certain unique characteristics different from usual stainless steel www.indiandentalacademy.com
  15. 15.  It is an ultra high tensile austenitic stainless steel arch wire  The wire has a unique property of zero stress relaxation. Zero relaxation allows the wire to maintain its force over a long period of time, yet resist permanent deformation from elastic load. www.indiandentalacademy.com
  16. 16. Different grades.  Regular  Regular plus  Special  Special plus  Extra special  Premium  Premium plus  Supreme www.indiandentalacademy.com
  17. 17. www.indiandentalacademy.com
  18. 18. MULTISTRANDED STAINLESS STEEL WIRE  It is also called as coaxial wire of 0.006 inch with 5 or 6 outer core wires  The strand of stainless steel wire is more flexible.  Used for initial aligning of teeth www.indiandentalacademy.com
  19. 19. www.indiandentalacademy.com
  20. 20. CHORME COBALT ALLOYS  Initially it was manufactured for watch springs by Elgin watch company, hence the name Elgiloy. Marketed as  Elgiloy  Azurloy  Multiphase  Ramaloy www.indiandentalacademy.com
  21. 21. COMPOSITION COBALT 40% CHROMIUM 20% NICKEL 15%. MOLYBDENUM 7% MANGANESE 2% CARBON 0.15% BERRYLIUM 0.4% IRON 15% www.indiandentalacademy.com
  22. 22. NICKEL TITANIUM ALLOYS.  The first of the titanium alloys introduced into orthodontics in recent years, is nickel titanium alloy marketed as Nitinol by Unitek corporations were developed for the space program but has proved very useful in clinical orthodontics because of its exceptional springiness. www.indiandentalacademy.com
  23. 23. TheNiti alloys have two remarkable properties that are unique in dentistry Shape memory Super elasticity www.indiandentalacademy.com
  24. 24.  Shape memory is the phenomenon where about the alloy is soft and readily formable at a low temperature, but can be easily returned to its original configuration when heated to suitable transition temperature  Super elasticity is the property, demonstrated by these wires when the point of wire deformation stays constant as the wire rebounds www.indiandentalacademy.com
  25. 25. COMPOSITION. NICKEL 49.8% TITANIUM 42.9% COPPER 6% CHROMIUM 0.05% www.indiandentalacademy.com
  26. 26. exceptional springiness www.indiandentalacademy.com
  27. 27. ADVANTAGES OF NI -TI  IT PERMITS EASIER ENGAGEMENT IN TO THE BRACKET SLOT WITH LESS DIFFICULTY.  IT CREATES LESS TRAUMA AND DISCOMFORT TO THE PATIENT. www.indiandentalacademy.com
  28. 28. Disadvantages  High friction when compared to stainless steel  Bending is not possible  Cannot be welded or soldered  Expensive when compared to stainless steel www.indiandentalacademy.com
  29. 29. BETA TITANIUM/TITANIUM MOLEBDYNUM ALLOY/TMA.  Beta - titanium a new orthodontic alloy with unique properties and excellent balance of properties suitable for many orthodontic applications  For a given cross section it can deflected approximately twice as far as stainless steel wire without permanent deformation. www.indiandentalacademy.com
  30. 30. COMPOSITION TITANIUM 79% MOLYBDENUM 11% ZIRCONIUM 6% TIN 4% www.indiandentalacademy.com
  31. 31. ADVANTAGES OF TMA  IT DELIVERS FORCE VALUE LESS THAN HALF OF STAINLESS STEEL.  GOOD SPRING BACK.  GOOD FORMABILITY.  WELDABILITY.  ABSENCE OF NICKEL MAKES IT IN USEFUL FOR PATIENTS ALLERGIC TO NICKEL. www.indiandentalacademy.com
  32. 32. TOOTH COLOURED ORTHODONTIC WIRES: NEW ORTHODONTIC MATERIAL WHICH HAS BEEN ADAPTED FROM AEROSPACE TECHNOLOGY.  HAS BEEN MADE OF COMPOSITIE PLASTICS. www.indiandentalacademy.com
  33. 33. www.indiandentalacademy.com
  34. 34. CLINICAL APPLICATION OF OPTIFLEX:  It is used in adult patients who wish that their braces not be really visible. www.indiandentalacademy.com
  35. 35. Thank you For more details please visit www.indiandentalacademy.com www.indiandentalacademy.com

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