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-16-EQUIA Fil, EQUIA Forte1985 Dynamic Involved in the Curing Process of Two Glass-ionomerCementsPoster Presentation11:00 AM–12:15 PM Mar 24, 2017CC, First FloorAuthors:Brunade Oliveira (Presenter)State University of MaringáAdriana LemosMori Ubaldini, State University of MaringáFrancieleSato, State University of MaringáMaria Fidelade Lima Navarro, University of Sao PauloSorayaCoelho Leal, Brasilia UniversityRenataPascotto, State University of MaringaRenataPascotto, State University of MaringaAbstract: Objectives: To evaluate different activation treatments on the dynamics of the setting process of the glass ionomercements (GICs).Methods: The GICs tested were EquiaFill (G1) and EquiaForte Bulk Fill Glass Hybrid Restorative System (G2). The groups were divided into control and activation treatments with LED, halogen light or ultrasound waves. After being mixed according to the manufacturer’s instructions, the light or ultrasound waves. After being mixed according to the manufacturer’s instructions, the GICs received the activation with light sources or ultrasound during 30 seconds according to each group. In the control group, the GICs did not receive any activation. The samples were analyzed by Fourier transform infrared spectroscopy (FTIR-PAS) at different time intervals: every 10min for 120min. Each spectrum was obtained from the average of 128 scans. This technique provides information about chemical bonding modifications, expressed by the displacement or the formation of new optical absorption peaks. The setting process was analyzed in the spectra by the ratio of the intensities of the bands associated to the formation of the COO-acid group (1720cm-1) and C=O carboxylatesalts of the polyacid(1637cm-1) in function of the time.(1720cm-1) and C=O carboxylatesalts of the polyacid(1637cm-1) in function of the time.Results: The results show that the G1 have a constant and similar process in the initial setting stage in all groups, but in ultrasound treatment, the material demonstrated an increase of the band associated to aluminum polyacrylateformed (1598cm-1). The G2 material associated to LED and halogen light show that the process of curing occurs more quickly compared to the others.Conclusions: The results suggest that the application of different activation treatments in GIC restorations could be beneficial, as it may stabilize the chemical bonds more quickly and prevent premature loss of the restorations.premature loss of the restorations.Student PresenterDisclosure Statement:The submitter must disclose the names of the organizations with which any author have a relationship, the nature of the relationship, and the clinical or research area involved. The following is submitted: NONEI have read the IADR policy on licensing.Signed by BrunaOliveiraSigned by BrunaOliveiraReprinted with permission from the Journal of Dental Research, J Dent Res 96 (Spec Iss A):-16-abstract number 1985, https://iadr2017.zerista.com/event/member/330899, 2017