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A Comparison of Maximum Load, Tensile Strength, and Modulus of Elasticity of Orthodontic Archwires

Jesal, Solanki (2024) A Comparison of Maximum Load, Tensile Strength, and Modulus of Elasticity of Orthodontic Archwires. Master's Thesis, University of Pittsburgh. (Unpublished)

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Abstract

Introduction Changes in the composition of orthodontic archwires have broadened their properties and characteristics. Along with the composition of wires, properties are affected by the geometric diameter of the wire. Maximum load, ultimate tensile strength, and modulus of elasticity are wire characteristics that can play a role in defining how these wires are able to be used in orthodontic treatment. The objective of this study is to discover if these wires can be used interchangeably based on these tested characteristics and to discover if diameter and shape alters any of these aforementioned alloys’ characteristics. Methods. Tensile testing was conducted on 140 wire samples of Nickel Titanium (NiTi), Titanium Molybdenum (TMA), and Stainless Steel archwires. Within each alloy, dimensions of .016in, .018in, .016x.022in2, and .018x.025in2 were tested. Values for Maximum Load, Ultimate Tensile Strength, and Modulus of Elasticity were obtained. Results. Overall, there were some significant differences seen within alloy groups with different dimensions. Round wires for TMA and NiTi wires showed a significantly higher values ultimate tensile strength and modulus of elasticity when compare to their rectangular counterparts. Stainless steel wires did not show this pattern. Conclusion. Dimension and shape did alter the values for some alloys of wires. Additionally, based on the 3 tested values, we cannot conclude that different alloys can be used interchangeably due to the large disparities in values between the alloy groups.


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Details

Item Type: University of Pittsburgh ETD
Status: Unpublished
Creators/Authors:
CreatorsEmailPitt UsernameORCID
Jesal, Solankijms678@pitt.eduJMS6780009-0000-5463-2386
ETD Committee:
TitleMemberEmail AddressPitt UsernameORCID
Thesis AdvisorBuzzatto, Johnjfb33@pitt.edu
Committee MemberRody, WellingtonWJR34@pitt.edu
Committee MemberJheon, Andrewandrew.jheon@pitt.edu
Committee MemberChmielus, Markuschmielus@pitt.educhmielus0000-0002-8688-6054
Date: 3 June 2024
Defense Date: 24 May 0024
Approval Date: 9 July 2024
Submission Date: 6 June 2024
Access Restriction: No restriction; Release the ETD for access worldwide immediately.
Number of Pages: 40
Institution: University of Pittsburgh
Schools and Programs: School of Dental Medicine > Dental Science
Degree: MDS - Master of Dental Science
Thesis Type: Master's Thesis
Refereed: Yes
Uncontrolled Keywords: Archwires, Modulus of Elasticity, Tensile Strength, Maximum Load
Date Deposited: 09 Jul 2024 13:24
Last Modified: 09 Jul 2024 13:24
URI: http://d-scholarship.pitt.edu/id/eprint/46462

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