Abstract
Background: Bidimensional radiographic methods, including periapical, occlusal, panoramic, and cephalometric radiographs,
are widely used in dentistry. However, the superimposition of adjacent structures and consequent loss of anatomic details may
occur.
Objectives: The purpose of this study is to evaluate the artifacts produced by different cements with different densities using conebeam
computed tomography (CBCT).
Materials and Methods: Samples of five cements with different densities including glass ionomers (or GI, from ChemFil Rock and
Fuji IX), mineral trioxide aggregates (MTA), zinc oxide eugenol (ZOE), TempBond and a control sample (polyester) were scanned by
CBCT device and analyzed using OnDemand 3D application software. The amount of artifacts was measured by ∆ gray scale value
(∆GSV), which was achieved by subtracting the gray level of the samples from the control group.
Results: According to the mean GSV of the five different materials, the majority of artifacts produced were as follows: TempBond >
ZOE > MTA > GI (ChemFil Dentsply) > GI (GC, FujiIX).
Conclusions: The type of materials can influence the obtained GSV. Different materials cause various amounts of artifacts due to
differences in density and atomic number.