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?

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?

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

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

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.

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.

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?

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?

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.

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

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

Accepted Answer

An EEZEE-Grip is a double-ended instrument that holds the receptor between two serrated plastic grips that can be locked in place.Features of the Stabe bite-block include that it is disposable and it has a slot for receptor retention.An EEZEE-Grip is a molded-plastic device that can be sterilized.

Question 12

Which of the following are beam alignment devices?

Accepted Answer

The Stabe bite-block is a Styrofoam receptor holder.The XCP bite-block is a Styrofoam receptor holder.The EEZEE-Grip is a plastic receptor holder.An XCP is a beam alignment device.

Question 13

_________________ regulate(s)the manufacture and installation of dental x-ray equipment.

Accepted Answer

While state governments may regulate how dental x-ray equipment is used,the federal government regulates the manufacture and installation of dental x-ray equipment.

Quiz 6: Dental X-Ray Equipment