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Exposure/Tech Errors
Dental Radiography -- Principles and Techniques
Term | Definition |
---|---|
Unexposed Receptor | - image is clear - failed to turn on xray machine, electrical failure, malfunction of xray equpiment |
Film Exposed to Light | - appears black - film exposed to white light |
Overexposed Receptor | - appears dark - overexposed radiation -- excessive exposure time, kV, mA |
Underexposed Receptor | - image appears light - underexposed radiation -- inadequate exposure time, kV, mA |
Film Bending | - appears stretched - film was bent excessively bc curvature of hard palate |
Film Creasing | - thin radiolucent line seen - film was creased and emulsion was cracked |
Phalangioma | - image of PT finger is seen - PT finger incorrectly placed in front of receptor instead of behind |
Dbl Exposure | - dbl image seen - same receptor was exposed twice |
Movement | - blurred image - tube head or PT moved during exposure |
Reversed Film | - light images w herringbone pattern - film placed in mouth backward and then exposed |