Abstract
The aim of this study was to determine the effect of acidic beverages on the mechanical characteristics of a nanofilled composite resin and of a glass ionomer. Thirty specimens of each restorative material were produced and were evaluated at three different time points: before immersion (T0), after a 7 day immersion (T1) and after a 14 day immersion (T2) in water, beer and a soft drink. The studied parameters were microhardness and surface roughness. At T2, composite resin and glass ionomer specimens immersed in water, beer and the soft drink showed a statistically significant decrease in microhardness compared to T0 results. The surface roughness of composite resin specimens decreased between T0 and T1/T2 after immersion in beer and soft drink. A statistically significant increase was found between the roughness of glass ionomer specimens immersed in each one of the beverages at T0 and T1/T2. It is essential that clinicians are aware not only of available restorative materials, its characteristics and best handling techniques but also of the importance of performing an adequate assessment of patients’ dietary habits, thus making it possible to offer patients quality treatments with a predictable prognosis and longevity.
Highlights
The initial surface microhardness (T0) was significantly higher (p < 0.001) in the glass ionomer specimens when compared with the composite resin specimens (p < 0.001)
The success of dental rehabilitation using restorative materials such as composite resin and glass ionomer is mostly related to the longevity of the restorative procedures, being essential for the careful identification and evaluation of all parameters that may jeopardize it [13]
The influence of dietary habits, namely of beverages with erosive potential, whose consumption has increased over the last few decades, is already recognized in the literature, which makes the study of its effects on different dental materials of uttermost importance [14,15,16,17,18]
Summary
There are several materials available for this purpose for either permanent or temporary restorative procedures, namely composite or glass ionomer-based materials [1]. The use of a composite resin in clinical dental practice makes it possible to carry out an accessible permanent dental rehabilitation, with good esthetic, mechanical and chemical performance. Glass ionomer-based materials are often used in temporary procedures. In these situations, these materials should be able to offer a quality 4.0/). The viability, longevity and good clinical performance of restorations will always be the main goals of these kinds of treatments. Not all restorative materials guarantee functional longevity of rehabilitations, presenting with a clear need to control these restorations in order to prevent failure [4,5]
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