Influence of Copaifera multijuga hayne oil-based emulsion on the stability of the dentin matrix

Abstract

The objective of this work was to analyze the elastic response of dentin to the biomodification of the organic matrix with the use of an emulsion based on Copaíba oil. Sound human third molars, 0.5 mm x 1.7 mm x 7 mm, were prepared, 90 samples were obtained, demineralized, radiographed and tested at baseline and immersed for 30 and 60 minutes in the test substances: GC1 (distilled water); GEC (Copaiba oil-based emulsion); GCLX (2% Chlorhexidine). The modulus of elasticity (ME) was evaluated immediately after biomodification and at 3, 7 and 14 days after treatment. The specimens were tested in 3-point flexion with a 5 N load cell. The data were submitted to statistical analysis using parametric test of mixed three-way ANOVA. All groups showed a decrease in ME over time. The immersed specimens from the GEC group showed the highest values after 3 and 7 days. It was concluded that the treatment of collagen with all the test substances at 30 and 60 min of immersion immediately reduced the ME, however the GEC group was the one that presented the highest values of the mean modulus of elasticity, promoting greater stability throughout the period. evaluation time.