Evaluation of radiopacity of composite resins for posterior teeth

Abstract

The aim of this study was to evaluate the radiographic density of composites indicated for posterior restorations. Four materials (TPH, ALERT, Filtek P60 and SureFill) were evaluated. Three standardized specimens were prepared for each material. A molar tooth was longitudinaliy sectioned in a 2.0mm thickness (the same ofthe composite specimens). The optical densities of enamel, dentin, and compositeswere obtained from radiographic images and a photodensitometer. After submitting the data to a statistical analysis, it was observed that the dentin showed the highest optical density (pO,05). It was concluded that despite the differences, ali materials satisfy the minimal characteristcs to be used in posterior restorations.