Results: 4

Effect of radiant exposure and UV accelerated aging on physico-chemical and mechanical properties of composite resins

J. appl. oral sci; 27 (), 2019
Abstract Currently, there is no consensus in terms of defining the minimum radiant exposure values necessary for achieving adequate properties of composite resin. In addition, the long-term influence that radiant exposure has on the properties of composite resins is still questionable. Objective: The obj...

Inhibición de la formación de β-hematina de especies colombianas de Piper spp. y Calophyllum spp. como potenciales agentes antimaláricos

Rev. biol. trop; 66 (4), 2018
Resumen Nuevos agentes antimaláricos a partir de plantas son estudiados como alternativas en el tratamiento de la malaria. Los principales antimaláricos como la cloroquina tienen varios mecanismos de acción contra parásitos, uno de ellos es la inhibición de polimerización del grupo hemo, modelo que...

Effect of different bonding protocols on degree of monomer conversion and bond strength between orthodontic brackets and enamel

Abstract The objective of the present study was to evaluate the effect of different surface treatments and polymerization protocols on the bond strength of brackets to enamel, and the degree of conversion of the bonding agents. 120 bovine crowns were embedded in acrylic resin blocks and sanded. Next, the...

Influence of polymeric matrix on the physical and chemical properties of experimental composites

Braz. oral res. (Online); 29 (1), 2015
Nowadays, the main reasons for replacement of resin-based composite restorations are fracture or problems with the integrity of their interface, such as marginal staining, microleakage, or secondary caries. The aim of the present study was to evaluate the influence of the organic matrix on polymerization...