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Orthodontic Archwires

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by

Carmen Lo

on 14 February 2014

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Transcript of Orthodontic Archwires

Orthodontic Archwires
Introduction...
The Stress/Strain Curve
The Size of the Wire
The Shape of the Wire
Wire Material
Sequencing of
Archwires
Shape Memory Effect and Superelasticity
References
Contemporary Orthodontics, 5th Edition, Proffitt

Kapila, S., and Sachdeva, R. (1989). Mechanical properties and clinical applications of orthodontic wires. American Journal of
Orthodontics and Dentofacial Orthopedics, 96(2):100-109.

Kusy, RP. 1997. A review of contemporary archwires: Their properties and characteristics. The Angle Orthodontist, 67(3):197-207.

Mitchell, L. An Introduction to Orthodontics, 4rth ed. United Kingdom: Oxford, (2013), p.220-221.
Retrieved Feb 1, 2014 from: http://books.google.ca/books?id=dIdoAgAAQBAJ&pg=PA220&lpg=PA220&dq=archwire+round+tooth+movement&source=bl&ots=j3K8nEIA67&sig=SLbmv861ogcVXZdlNG0PhpXh2_s&hl=en&sa=X&ei=dx_tUoX-A7LlyAGw7oC4Dw&ved=0CHAQ6AEwCTgK#v=onepage&q&f=false

Archwhire cross sectional shapes (image). Retrieved on Feb 1, 2014 from:http://doctorspiller.com/Orthodontics/orthodontics2.htm

Braces cartoon (image). Retrieved on Feb 2, 2014 from: https://www.google.ca/url?
sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&docid=SY1Wzl7pxw-HpM&tbnid=1ayftnWHVOFqfM:&ved=0CAUQjRw&url=http%3A%2F%2Fcommunity.thefoundry.co.uk%2Fdiscussion%2Ftopic.aspx%3Ft%3D40633&ei=33nxUrGdKqiayAHkwYD4CQ&bvm=bv.60444564,d.aWc&psig=AFQjCNHtbM-hrNBej9r9fPS_VFeenOWbUQ&ust=1391643476693554

Root torque (image). Retrieved on Feb 2, 2014 from:http://askanorthodontist.com/braces/how-do-braces-work/
- Up until 1930's, only available in gold material.
- Since then, cobalt-chromium, nickel-titanium, beta-titanium have been introduced
- Orthodontist makes decision as to which material to use at particular stage of treatment
- Decision made based on clinical result desired and which wire material will best produce such demands within their mechanical properties
Full transcript