Table 4 Ultrasonographic and radiographic features of DM.
Material | CBCT | USG | |||
|---|---|---|---|---|---|
Visibility | Density | Visibility | Echogenicity | Artifact | |
Composite | Visible | Opaque | Visible | Hyperechoic | Posterior acoustic shadowing |
Amalgam | Visible | Opaque | Visible | Hyperechoic | Comet tail and posterior acoustic shadowing |
GIC | Visible | Opaque | Visible | Hyperechoic | Comet tail |
Zinc polycarboxylate cement | Visible | Opaque | Visible | Hyperechoic | Comet tail and posterior acoustic shadowing |
Gutta percha | Visible | Opaque | Visible | Hyperechoic | Not visible |
Paper point | Not visible | Not visible | Visible | Hyperechoic | Not visible |
Acrylic | Visible | Slightly opaque | Visible | Hyperechoic | Posterior acoustic shadowing |
Wax | Not visible | Not visible | Visible | Hyperechoic | Posterior acoustic shadowing |
Needle | Visible | Opaque | Visible | Hyperechoic | Comet tail |
Stainless steel bracket | Visible | Opaque | Visible | Hyperechoic | Comet tail |
Ceramic bracket | Visible | Slightly opaque | Visible | Hyperechoic | Not visible |
Ni-Ti wires | Visible | Opaque | Visible | Hyperechoic | Comet tail |
Alginate | Visible | Slightly opaque | Visible | Isoechoic | Posterior acoustic shadowing |
Acrylic tooth | Visible | Slightly opaque | Visible | Hyperechoic | Posterior acoustic shadowing |
Metal ceramic crowns | Visible | Opaque | Visible | Hyperechoic | Comet tail |
