TY - JOUR A2 - D’Alpino, Paulo Henrique Perlatti AU - Firoozmand, Leily Macedo AU - Cordeiro, Mariana Gonçalves AU - Da Silva, Marcos André dos Santos AU - De Jesus Tavarez, Rudys Rodolfo AU - Matos Maia Filho, Etevaldo PY - 2016 DA - 2016/09/19 TI - Radiopacity of Methacrylate and Silorane Composite Resins Using a Digital Radiographic System SP - 6389347 VL - 2016 AB - The aim of this study was to evaluate the radiopacity of silorane and methacrylate resin composites, comparing them to the enamel, dentin, and aluminum penetrometer using a digital image. From six resin composites (Filtek P90, Filtek Z350, Filtek Z350 XT flow, Tetric Ceram, TPH Spectrum, and SureFil SDR flow) cylindrical disks (5 × 1 mm) were made and radiographed by a digital method, together with a 15-step aluminum step-wedge and a 1 mm slice of human tooth. The degree of radiopacity of each image was quantified using digital image processing. The mean values of the shades of gray of the tested materials were measured and the equivalent width of aluminum was calculated for each resin. The results of our work yielded the following radiopacity values, given here in descending order: Tetric Ceram > TPH > SDR > Z350 > Z350 flow > P90 > enamel > dentin. The radiopacity of the materials was different both for the enamel and for the dentin, except for resin P90, which was no different than enamel. In conclusion, silorane-based resin exhibited a radiopacity higher than dentin and closest to the enamel; a large portion of the methacrylate-based flow and conventional resins demonstrated greater radiopacity in comparison to dentin and enamel. SN - 2356-6140 UR - https://doi.org/10.1155/2016/6389347 DO - 10.1155/2016/6389347 JF - The Scientific World Journal PB - Hindawi Publishing Corporation KW - ER -