Impact of photoinitiator quality on chemical-mechanical properties of dental adhesives under different light intensities / Impacto da qualidade de fotoiniciadores nas propriedades químico mecânicas de adesivos dentais sob diferentes intensidades de luz
Silva, Tânia Mara da; Petrucelli, Nícolas de Faria; Mendonça, Rafael Pinto de; Silva Júnior, Jefferson Pires da; Campos, Tiago Moreira Bastos; Gonçalves, Sérgio Eduardo de Paiva.
SOL adhesives polymerized at 1200 mW/cm2 presented higher sorption and solubility.
Braz. dent. sci
; 26(1): 1-9, 2023. tab, ilus
Artículo
en Inglés
| LILACS, BBO - odontología (Brasil) | ID: biblio-1411424
Objective:
Evaluate the mechanical properties of experimental adhesive models with different photoinitiators (PI) polymerized by LED units of different power densities. Material andMethods:
Three groups of adhesive models based on HEMA/BisGMA (45/55) were prepared in association with different PI combinations G2 (control) 2 PI 0.5% CQ, 0.5% EDMAB; G3 - 3 PI 0.5% CQ; 0.5% DMAEMA, 0.5% DPIHP; G4 - 4 PI 0.5% CQ; 0.5% EDMAB; 0.5% DMAEMA; 0.5% DPIHP. The three formulations were polymerized at two different LED power densities 550 mW/cm2 and 1200 mW/cm2. The degree of conversion (DC) of adhesive monomers was monitored in situ through the FTIR for 600 s. Specimens were prepared for each formulation for analysis mong adhesive systems (G2Conclusion:
The mechanical propertieof flexural strength (FS), modulus of elasticity (ME), sorption (SOR) and solubility (SOL). Data were submitted to two-way ANOVA and Tukey tests (5%).Results:
DC there is a significant difference as of the adhesive models are directly related to the types of photoinitiatiors and the LED power densities. (AU)
Biblioteca responsable:
BR243.1
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