Strength decay of orthodontic elastomeric ligatures

Journal of Orthodontics
T V LamH M Podlich

Abstract

To evaluate, over a 12-week period, the tensile strength (TS) and extension to TS of elastomeric ligatures (both clear and coloured) obtained from two companies. Ex vivo study. Seven replicates of five ligatures from two orthodontic companies were tested using an ex vivo assembly which simulated a clinical situation. The ligatures tested had a similar TS decay pattern, with the TS gradually decreasing over the duration of the study. The Unitek ligatures exhibited a greater TS than their respective Ormco ligatures. Generally, all of the ligatures tested experienced an increase in the extension to TS over time. The pre-stretching procedure used in this study did not produce any long-term detrimental effects on the TS and extension to TS of the ligatures tested. The results of this study confirm there are differences in TS, and extension to TS between clear and coloured elastomeric ligatures, and that some significant differences also exist between different brands of elastomeric ligatures.

References

Nov 4, 1998·British Journal of Orthodontics·P A DowlingJ A Sandham

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Citations

May 29, 2009·European Journal of Orthodontics·Sung-Hee Kim, Yong-Keun Lee
Oct 27, 2009·The Angle Orthodontist·Nicola Louise CrawfordPhilip Edward Benson
Apr 30, 2010·Indian Journal of Dental Research : Official Publication of Indian Society for Dental Research·F AhrariM Zebarjad
Mar 12, 2008·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Thaís Gelatti BortolyEdvaldo Antônio Ribeiro Rosa
Jun 29, 2017·Dental press journal of orthodontics·Samaneh NakhaeiMasoud Rezaeizadeh
Dec 31, 2021·International Journal of Dental Hygiene·Milagros Juliana Sueiro FloresMirian Aiko Nakane Matsumoto

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