Evaluation of the Radiopacity of Luting Cements by Digital Radiography

摘要: Purpose The aim of this study was to evaluate the radiopacity eight contemporary luting cements using direct digital radiography. Materials and Methods Ten specimens, (5 mm diameter, 1 high) were prepared for each material tested (RelyX ARC, RelyX U100, Unicem, Nexus 2, 3, Metacem, Breeze, Adhesor zinc phosphate). The specimens stored in a moist chamber at 37°C until completely set, then radiographed Kodak sensor an aluminum step wedge with variable thicknesses (1 13 1-mm increments) used reference. A 2100 intraoral X-ray unit operated 60 kV, 7 mA, 0.20 seconds. According international standards, compared that equal-density area tool Dental Imaging software (ver. 6.7). Data analyzed by ANOVA Tukey's test. Results Adhesor phosphate cement showed highest all materials dentin. Breeze lowest (p 0.05). radiopacities 3 Unicem significantly higher than those other resin dentin < 0.05). Conclusions All above minimum recommended International Organization Standardization American National Standards/American Association. had less