film processing-DENH
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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| What appears on radiographs after being exposed? | show 🗑
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| What does exposure entail? | show 🗑
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| show | they are energized from the radiation
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| What are the 3 components of processing? | show 🗑
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| show | softens gel, reduces silver halide crystals by precipitation of silver
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| show | Fixer is acidic and developer is alkalinic
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| show | reduces silver bromide to silver
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| show | softens gel to allow hydroquinone to reach silver bromide and maintains alkalinity
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| show | prevents chemical fog (sometimes)
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| show | preservative
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| show | temperature: if high, decrease processing time; if low, increase processing time
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| show | it needs to be recycled due to the silver
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| what does sodium thiosulfate do? | show 🗑
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| show | prevents decomposition of thiosulfate
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| show | shrinks/hardens gelatin (emulsion)
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| what does acetic acid do? | show 🗑
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| show | double developer time (minimum of 10 min)
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| show | 3 minutes
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| what can occur if inadequate fixing happens? | show 🗑
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| show | stops developer, remoes developer so fixer is not contaminated
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| show | twice as long as it is fixed (minimum 20 min)
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| show | removes image from film
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| show | endodontics and post-operative
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| show | inferior in density and definition to standard method
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| show | developer, fixer, wash, dryer
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| show | solution strength, temp, and time = increased quality control
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| what 3 items need to be recycled? | show 🗑
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| show | size of crystals; larger=faster
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| show | decrease definition
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| what is the main advantage of an automatic processor? | show 🗑
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| show | increases, which decreases exposure time
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| show | 4
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| PROCESSING SLOUTIONS SHOULD BE CHANGED EVERY? | show 🗑
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| FILM EXPOSURE TEST UTILIZING A "STEP WEDGE" EVALUATES WHAT? | show 🗑
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| EXHAUSTED PROCESSING SOLUTION CAN CAUSE WHAT? | show 🗑
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| WHAT IS THE FASTEST FILM SPEED? | show 🗑
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| LIGHT LEAKS IN THE DARKROOM RESULT IN _____ ON THE FILM. | show 🗑
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| show | DARKER/ MORE RADIOLUSCENT
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| SILVER BROMIDE CRYSTALS ON A FILM THAT LIES BEHIND A CROWN RECIEVES HOW MUCH RADIATION? | show 🗑
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| A SIMPLE TEST USED TO CHECK THE SAFETY LIGHT IS CALLED? | show 🗑
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| THE MAIN FUNCTION OF LEAD FOIL IN THE FILM PACKET IS TO WHAT? | show 🗑
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| show | INCREASED
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| TO COMPENSATE FOR THE DECREASE IN IMAGE SHARPNESS THAT RESULTS FROM INCREASING OFD, WHAT IS INCREASED ALSO? | show 🗑
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| show | SHARPNESS
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| show | DETAIL
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| show | FOG
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| show | 16
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