Date of Award

Spring 2002

Document Type

Thesis - Restricted

Degree Name

Master of Science (MS)

Department

Dentistry

First Advisor

Bradley, Thomas

Second Advisor

Monaghan, Peter

Third Advisor

Stier, Erwin

Abstract

Research in the area of nickel-titanium alloys has exploded over the last thirty years. New nickel-titanium archwires possessing shape memory, superelasticity, high stored energy and excellent springback are now available. These archwires have become increasingly popular in the field of orthodontics especially for initial leveling and aligning of malposed teeth, traditionally treated with multi-looped or braided stainless steel archwires. Contemporary nickel-titanium archwires have decreased time, difficulty, and patient discomfort, mainly attributable to excellent mechanical properties. Many researchers have examined the clinical properties of "as-received" wires but until recently there has been very little research on wires used in vivo. Because of this, the current research was designed to evaluate the mechanical properties of clinically cycled nickel-titanium archwires...

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