The Impact of Incorporating Five Different Boron Materials into a Dental Composite on Its Mechanical Properties

Abstract

The aim of this study is to comparatively investigate changes in mechanical properties by adding five different types of boron derivatives to a microhybrid dental composite structure. In this study, which evaluated upper and lower surface microhardness (VHN), roughness (Ra), and color stability (∆E), a total of 126 discs were used (n = 7; per each subgroup). All boron derivatives were added to the dental composite structure in equal proportions in a dark room to create experimental composites (5% w/w). To enable comparison, a default composite without the addition of any boron derivative served as the negative control group. Before measurements, all samples were incubated at 37 °C for 24 h. For surface microhardness, roughness, and color stability, all experimental groups were statistically significant within themselves (p p p = 0.038; r = −0.185/p = 0.006; r = −0.245). To sum up, the addition of boron derivatives to composites, except for etifert, increased upper surface microhardness values; however, except for eticol-ceramic, surface roughness values also increased. Nevertheless, the addition of boron derivatives, except for eticol-ceramic, ensures color stabilization.

Keywords

• borax pentahydrate
• boric acid
• boron
• dental composite
• eticol-ceramic
• etifert