Question 1

You have your patient in the chair,you have placed the receptor in your patient's mouth,and you have positioned the position-indicating device.Which of the following should you do next to take the x-rays?

A)Turn on the on-off switch.
B)Push the exposure button.
C)Turn on the exposure light.
D)Adjust the control devices.

Push the exposure button.

Accepted Answer

The on-off switch turns the machine on and off;it should have been turned on before your patient was seated.The exposure button is depressed when you are ready to activate the machine to produce x-rays.The exposure light,which is illuminated during x-ray exposure,will automatically come on to indicate that the exposure button has been depressed.The control devices,which include the timer and kV and milliamperage selectors,are adjusted prior to exposing the patient to x-rays.

Question 2

Which of the following intraoral receptor holders is a disposable Styrofoam bite-block?&#10;A)EEZEE-Grip&#10;B)Stabe bite-block&#10;C)EndoRay&#10;D)Uni-bite

Accepted Answer

The EEZEE-Grip is a double-ended instrument that holds the receptor between two serrated plastic grips.The Stabe bite-block is a disposable Styrofoam bite-block.The EndoRay is used during root canal procedures.The Uni-bite is a plastic holder.

Question 3

During an exposure&#10;A)the exposure button is briefly depressed and then released to initiate the exposure.&#10;B)the exposure button is firmly depressed until the preset exposure time is completed.&#10;C)the exposure light on the control panel is illuminated to signal the completion of the exposure.&#10;D)a beep sounds to signal initiation of the exposure.

Accepted Answer

The exposure button is firmly depressed until the preset exposure time is completed.The exposure light on the control panel is illuminated for the duration of the exposure.The beep sounds to signal completion of the exposure.

Question 4

The position-indicating device (PID)is an extension of the&#10;A)tubehead.&#10;B)extension arm.&#10;C)control panel.&#10;D)exposure button.

Accepted Answer

The PID is an extension of the tubehead.The extension arm supports the x-ray tubehead.The control panel allows the dental radiographer to regulate the x-ray beam.The exposure button activates the machine to produce x-rays.

Question 5

A beam alignment device can be used to help the dental radiographer position the PID in relation to the _____________ and the receptor.&#10;A)control panel&#10;B)extension arm&#10;C)collimator&#10;D)tooth

Accepted Answer

A beam alignment device can be used to help the dental radiographer position the PID in relation to the tooth and receptor.The control panel,which allows the dental radiographer to regulate the x-ray beam,is plugged into an electrical outlet and appears as a console or cabinet.The extension arm suspends the x-ray tubehead,houses the electrical wires,and allows for movement and positioning of the tubehead.A collimating device may be retrofitted onto the end of a standard PID to restrict the size of the x-ray beam and limit radiation exposure.

Question 6

A _____________ eliminates the need for the patient to stabilize the receptor.&#10;A)PID (position-indicating device)&#10;B)receptor holder&#10;C)control panel&#10;D)beam alignment device

Accepted Answer

The position-indicating device shapes and restricts the size of the x-ray beam.A receptor holder eliminates the need for the patient to stabilize the receptor.The control panel allows the dental radiographer to regulate the x-ray beam,is plugged into an electrical outlet,and appears as a console or cabinet.A beam alignment device is used to help the dental radiographer position the PID in relation to the tooth and the receptor.

Question 7

Which of the following statements is true of the receptor holder?&#10;A)It is used to align an extraoral dental x-ray receptor.&#10;B)It requires the patient to stabilize the receptor in the mouth.&#10;C)It is required when using the intraoral paralleling technique.&#10;D)It is required when using the intraoral bisecting technique.

Accepted Answer

It is used to align an intraoral dental x-ray receptor.It does not require the patient to stabilize the receptor in the mouth.The receptor holder is required when using the intraoral paralleling technique.It is required when using the intraoral paralleling technique.

Question 8

You are on a mission trip,and your responsibility is to take radiographs.You are using a handheld x-ray machine,digital sensors,and a receptor holder.Sterilization is not available.Which of the following receptor holders would you use?

A)An EEZEE-Grip.
B)A Stabe bite-block.
C)A Snap-A-Ray.
D)A Uni-bite.

Accepted Answer

An EEZEE-Grip is a molded-plastic device that can be sterilized and is a double-ended instrument that holds the receptor between two serrated plastic grips that can be locked in place.A Stabe bite-block is a disposable Styrofoam bite-block with a backing plate and a slot for receptor retention.The EEZEE-Grip was originally called a Snap-A-Ray.A Uni-bite is not disposable.

Question 9

The _____________ allow(s)for positioning of the tubehead.&#10;A)control devices&#10;B)extension arm&#10;C)control panel&#10;D)exposure button

Accepted Answer

The control devices regulate the x-ray beam.The extension arm allows for positioning of the tubehead.The control panel allows the dental radiographer to regulate the x-ray beam.The exposure button activates the machine to produce x-rays.

Question 10

The Rinn XCP is a&#10;A)beam alignment device.&#10;B)Styrofoam bite-block.&#10;C)snap-on metal collimating device.&#10;D)Uni-bite.

Accepted Answer

The Rinn XCP is a beam alignment device.A Styrofoam bite-block is a disposable receptor holder.A snap-on metal collimating device is used to restrict the size of the x-ray beam and limit radiation exposure.A Uni-bite is a type of receptor holder.

Question 11

Features of the Stabe bite-block include&#10;A)a double-ended instrument.&#10;B)a slot for receptor retention.&#10;C)a molded plastic that can be sterilized.&#10;D)a receptor that is held between two serrated plastic grips.

Accepted Answer

The answer of Features of the Stabe bite-block include&#10;A)a double-ended...

Question 12

Which of the following are beam alignment devices?&#10;A)The Stabe bite-block&#10;B)The XCP bite-block&#10;C)The EEZEE-Grip&#10;D)An XCP

Accepted Answer

The answer of Which of the following are beam alignment...

Question 13

_________________ regulate(s)the manufacture and installation of dental x-ray equipment.&#10;A)The federal government&#10;B)State governments&#10;C)Local governments&#10;D)Municipal governments

Accepted Answer

The answer of _________________ regulate(s)the manufacture and installation of dental...

Deck 6: Dental X-Ray Equipment