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Viscoelastic Properties Of Orthodontic Adhesives Used For Lingual Fixed Retainer Bonding, Demetrios P. Papadogiannis, A. Iliadi, T. Gerard Bradley, N. Silikas, George Eliades, T. Eliades
Viscoelastic Properties Of Orthodontic Adhesives Used For Lingual Fixed Retainer Bonding, Demetrios P. Papadogiannis, A. Iliadi, T. Gerard Bradley, N. Silikas, George Eliades, T. Eliades
School of Dentistry Faculty Research and Publications
Objective
To evaluate the viscoelastic properties of two experimental BPA-free and one BisGMA-based orthodontic resin composite adhesives for bonding fixed retainers.
Methods
A commercially available BisGMA-based (TXA: Transbond LR) and two bisphenol A-free experimental adhesives (EXA and EXB) were included in the study. The viscoelastic behavior of the adhesives was evaluated under static and dynamic conditions at dry and wet states and at various temperatures (21, 37, 50 °C). The parameters determined were shear modulus (G), Young’s modulus (E) under static testing and storage modulus (G1), loss tangent (tan δ) and dynamic viscosity (n*) under …