Abstract
This in vitro study aimed to evaluate surface microhardness, roughness, color, gloss and topography of low-cost Brazilian resin composites, compared with an international one. All 120 samples (8mm ø x 2mm height) were prepared and divided into 5 groups: Ultrafill (Biodinâmica), Llis (FGM), Fill Magic (Coltene), Applic (Makira), and Filtek Z250XT (3M Oral Care). Surface microhardness (KHN) (n=10) was analyzed at two time periods: before and after simulated tooth brushing (STB). Other standardized samples of each group (n=10) were analyzed for surface roughness (Ra), color (ΔL, Δa, Δb, ΔE, ΔE00) and gloss unit (GU) at the same two periods. The topography of non-brushed and brushed samples of each group (n=4) was evaluated by scanning electron microscopy. Data were analyzed statistically by two-way repeated measures ANOVA with Bonferroni post-hoc test (KHN, Ra, GU), and one-way ANOVA with Tukey post-hoc test (ΔL, Δa, Δb, ΔE, ΔE00) (α=0.05). Topographic images were submitted to descriptive analysis. The low-cost Brazilian resin composites investigated were compared with the international one and revealed: lower KHN, regardless of before or after STB; statistically similar Ra before STB, except Ultrafill, which presented higher values; lower Ra after STB, except Ultrafill, which presented statistically similar values; statistically similar color change in ΔL, Δa, Δb parameters; statistically similar color change in ΔE, ΔE00 parameters, except Fill Magic, which presented lower values; lower gloss before STB; lower gloss after STB, except Ultrafill, which presented statistically similar values. In a situation of scarce resources, low-cost Brazilian composites might be an acceptable cost-effective restorative alternative.
Highlights
IntroductionSince it has become increasingly easier to find information, and dentistry has become globalized, people of all ages have become more demanding about restorative dentistry treatments.[1,2] As a result, there has been a remarkable increase in the demand for dental services in Brazil.[3,4] Among the options available today, there are public and private dental clinics, but countless health insurance providers and
The search for quality of life and healthcare has intensified in recent years
Surface roughness (Ra) The surface roughness values are shown in Simulated tooth brushing
Summary
Since it has become increasingly easier to find information, and dentistry has become globalized, people of all ages have become more demanding about restorative dentistry treatments.[1,2] As a result, there has been a remarkable increase in the demand for dental services in Brazil.[3,4] Among the options available today, there are public and private dental clinics, but countless health insurance providers and. Exclusively dental insurance plans that facilitate the access to treatment of people from different socioeconomic groups. The services are affordable, and payment options range.[3] According to data from the National Supplementary Health Agency, the number of health plan beneficiaries increased 25% from 2008 to 2013.5 Exclusively dental health insurance grew from 2.7 million in December 2000 to 16 million in September 2011
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