dr:tagwa mierghani mohamed. there are variety between intra and extra oral machine design. the...
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DENTAL X-RAY EQUIPMENT
DR:TAGWA MIERGHANI MOHAMED
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introduction
There are variety between intra and extra oral machine design .
The radiographer must have clear understanding of the operating procedures for the specific equipment that use in dental office to avoid improper exposure of patients and dental personnel .
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Types of machines
Intra oral ( film placed inside the mouth )
Extra oral ( film placed out side the mouth )
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Component parts
The typical intraoral dental x-ray machine features three component parts .
1- tube head : that produces dental x-ray .
2- extension arm :
suspended the tube head the electrical wires and allows the movement .
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Tube head
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Extension arm
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3- control panel : allows the dental radiographer to regulate the x-ray beam ,the control panel is plugged into electrical outlet .that may be mounted to the floor or wall support . Or remote wall location outside the dental operatory .
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The control panel consist of :
On-off switch Exposure button Control devices to regulate
the x-ray beam and kilovaltage and also contain timer .
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Control panel
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Film holder
A device use for hold the intraoral film in the mouth .
Film holders eliminate the need for patient to stabilize the film .
Its required for paralleling technique .
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Types of film holders
Bite block Snap –a-ray Endo ray Precision film holder Rinn
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Bite -bolck
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Snap –a-ray
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Endoray
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precision
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