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Radiography- restorations, materials, and foreign objects

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whertzler1's version from 2016-11-08 23:48

Section

Question Answer
amalgam- radiopaque- metallic restoration that absorbs x-rays
amalgam overhang-radiopaque-extensions of amalgam beyond the crown portion of a tooth in the interproximal region
amalgam tattoo- seen intraorally as blue/purple areas on the gingiva- resulting from amalgam fragments
amalgam fragment-radiopaque- Fragments of amalgam embedded in soft tissue during restoration of a tooth They appear as dense radiopacities with irregular borders
gold crown- radiopaque with smooth marginal outlines
gold onlay- radiopaque with smooth marginal outlines
stainless steel crown- Appear radiopaque but not as radiopaque as amalgam or gold. Outlines and margins appear smooth and regular Some areas may appear “see-through” on a radiograph
post and core restorations- radiopaque- seen in endodontically treated teeth, The core portion resembles the prepared portion of a tooth crown, and the post portion extends into the pulp canal.
composite/resin/acrylic- radiolucent to slightly radiopaque depending on density
porcelain crown- slightly radiopaque
porcelain fused to metal crown- slightly radiopaque and metal appears radiopaque
base material-radiopaque-but less than amalgam- cavity liners to protect the pulp
pins-They appear as cylindrical or screw-shaped radiopacities-Metallic pins are used for retention of restorations
gutta percha- radiopaque like a base- but less than metallic - clay like material used to fill pulp canals
silver point- very radiopaque-used to fill pulp canals
complete dentures- appears like floating teeth with radiopaque boxes
partial dentures- areas of radiopaque- removable constructed of cast metal
orthodontic bands and brackets- characteristic radiopaque areas
lingual arch wire- radiopaque area behind the lingual teeth
implant- radiopaque-used more frequently, variety of appearances based on shape and design
metallic stabilizers- radiopaque areas
memorize

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