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A Comparative Study on the Efficiency of Pigmented and non Pigmented Elastomeric Chains Using Differential Scanning Calorimetry

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Author(s): Joby Paulose | Rhea Mini Jayan

Journal: Indian Journal of Dental Advancements
ISSN 2229-5038

Volume: 2;
Issue: 4;
Start page: 323;
Date: 2010;
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Keywords: Differential scanning calorimetry (DSC) | Glass transition temperature (Tg)

ABSTRACT
Orthodontic treatment involves the use of force delivery systems such as arch wires and elastomeric chains. Their mechanical property varies among various manufacturers. It depends on their phase transformation temperature. Differential scanning calorimetry (DSC) is a method of thermal analysis which is extensively employed to assess the properties of orthodontic materials. In the field of orthodontics DSC is used to assess the phase transition temperature of orthodontic arch wires, glass transition temperature of polyurethane elastomers, and to evaluate the degree of cure of dental resins. The present study highlights the clinical application of differential scanning calorimetry in evaluating the Glass transition temperature of polyurethane elastomeric chains.
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