Department of Endodontics, Federal University of Alfenas, Alfenas, Brazil
Research Article
Influence of Monomers and Solvents on the Contact Angle, Penetrability and Knoop Hardness of Experimental Resin Infiltrants into Caries-Like Lesions
Author(s): Tatiany Gabrielle Freire Araújo Guimarães, Victor Pinheiro Feitosa*, Tainah Oliveira Rifane, Italo Hudson Tavares Maia, Ravana Angelini Sfalcin, Bruno Martini Guimarães and Americo Bortolazzo Correr
Objective: To evaluate the influence of monomers Urethane Dimethacrylate (UDMA), Ethoxylated Bisphenol A Glycidyl Dimethacrylate
(BisEMA), and solvents Tetrahydrofuran (THF) and Dimethyl Sulfoxide (DMSO) on the contact angle, penetrability and
Knoop microhardness of resin infiltrants into caries-like lesions.
Methods: Eleven groups were evaluated: 1) Icon; 2) 75% TEGDMA (T)+25%UDMA (U); 3) T+U+0.5%DMSO; 4) T+U+5%DMSO;
5) T+U+0.5%THF; 6) T+U+5%THF 7) 75% T+25%BisEMA(B); 8) T+B+0.5%DMSO; 9) T+B+5%DMSO; 10) T+B+0.5%THF;
11) T+B+5%THF. The contact angle measurement was performed in a viscosimeter (n=5). The resin infiltrants penetrability (n=5)
by Confocal Laser Scanning Microscopy by qualitative analysis and Knoop microhardness (n=10) was evaluated in caries-like
lesions produced on the enamel of bovine teeth. Contact angle data.. View more»