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XRAY Faults - Dental > XRAY FAULTS > Flashcards

XRAY FAULTS Flashcards

1
Q

Elongation occurs when?

A

Collimator angled too SHALLOW

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2
Q

Coning occurs when?

A

No holder used
Collimator not positioned correctly

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3
Q

Blurred image ?

A

Pt moves
Collimator is moved during exposure

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4
Q

Transparent / Faint image

A

HERRINGBONE PATTERN

Film placed wrong way - hits lead foil facing Collimator

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5
Q

Fogged Film?

A

Conventional

Exposed to light beforehand

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6
Q

Dark film?

A

Developer is too strong
Temp is over limit (18-22)

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7
Q

Blank film

A

Fixed before developed

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8
Q

Partly blank

A

Not fully submerged in developer

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9
Q

Foreshortening

A

Angle of Collimator is too steep

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10
Q

Patient error /accessories

A

OPT - Accessories may distort imagine due to absorption of lots of radiation example - earings , tongue piercing

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11
Q

Fogged / Black

A

The film has been exposed to light before the exposure

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12
Q

Faint film

A

The developer solution is too weak or temp below 18

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13
Q

Fading image

A

Inadequate fixing time

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14
Q

Loss of film

A

Stuck in processor tanks - over developed appear very dark

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15
Q

Scratches

A

Film caught on edge of tank or finger scratches

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16
Q

Blank spots

A

Film splashed with fixer before developer

17
Q

Crazzed pattern / crystals

A

Film dried too quickly or film too hot could be problem with processor

18
Q

Blank lines across film

A

Film has been bent or folded before processing

19
Q

Brown/ green stains

A

Inadequate fixer - solutions old need changing

XRAY Faults - Dental (1 decks)

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