AI Article Synopsis
- A study measured the radiopacity of 18 different resin cements to see how the amount of inorganic filler affected their visibility on X-rays, using digital radiography alongside an aluminum step wedge.* -
- Four disk specimens of each type of cement were tested, resulting in findings that all materials had higher radiopacity than dentin, with 12 of them being more radiopaque than enamel.* -
- The filler content varied from 17.36% to 53.56% by volume, and radiopacity ranged from 1.02 to 3.40 mm Al, showing no significant differences among shades of the same cement type, but higher filler content correlated with greater radiopacity.*
Article Abstract
Digital radiography was used to measure the radiopacity of 18 resin cements to determine the influence of inorganic filler content on radiopacity. Four disk specimens (n=4) of each light-curing cement were digitally radiographed alongside an aluminum step wedge using an intraoral sensor (XIOS Plus, Sirona, Germany), and their mean gray value measured. Percentage of filler by weight was determined using an analytical combustion furnace. Data were statistically analyzed using one-way ANOVA and Tukey's test (α=0.05). All materials were more radiopaque than dentin and 12 materials were more radiopaque than enamel. Filler percentage ranged between 17.36 to 53.56 vol% and radiopacity between 1.02 to 3.40 mm Al. There were no statistically significant differences in inorganic filler percentage and radiopacity among the different shades of the same material (p>0.05), but the highest radiopacity was measured for the material which contained a higher percentage of filler.
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| http://dx.doi.org/10.4012/dmj.2011-225 | DOI Listing |
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