Exam (elaborations)
Dental Radiology | 97 Study Questions and Answers 100% Correct | Updated
- Course
- Institution
Dental Radiology | 97 Study Questions and Answers 100% Correct | Updated
[Show more]
Content preview
Dental Radiology | 97 Study Questions andAnswers 100% Correct | Updated 2024-2025
Who discovered x-rays? - ANSWER Wilhelm Conrad Roentgen
Who are the pioneers in Dental Radiography? - ANSWER Wilhelm Conrad
Roentgen, Otto Walkhoff, C. Edmund Kells
What is matter? - ANSWER Anything that occupies space and has form or
shape
An atom consists of what two parts? - ANSWER A atom consists of two parts: a
central nucleus and orbiting electrons
Define the nucleus and electrons - ANSWER Nucleus - The dense core of an
atom, made up of protons and neutrons. (Protons are positively charged and
neutrons have no charge, the nucleus therefore has a positive charge)
Electrons - Tiny, negatively charged particles that travel around the nucleus.
What is a proton? - ANSWER A tiny bundle of pure energy that has no weight
or mass that travels as waves at the speed of light and moves through space in a
straight line.
What is an ion? - ANSWER An atom that has gained or lost an electron, causing
it to have a charge, and is now electrically imbalanced.
,X-rays have enough energy to produce ions because of: - ANSWER Ionization
The _____ the wavelength of the x-ray the ____ its energy - ANSWER shorter;
greater
Each component of the tubehead defined - ANSWER Housing: The housing in
the metal body that contains the x-ray tube.
Insulating oil: Insulating oil fills the housing and surrounds the x-ray tube. Oil
prevents overheating by absorbing the heat created by the production of x-rays.
Tubehead seal: The tubehead seal, made of leaded glass or aluminum, keeps the
oil in the tubehead and acts as a filter for the x-ray beam.
X-ray tube: The x-ray tube is where x-rays are produced.
Transformer: The transformer alters the voltage of incoming electrical current
Aluminum filter: Is a 0.5-mm-thick sheet located inside the PID in the path of the
x-ray beam that filters out of the non penetrating, longer-wavelength radiographs
Lead collimator: A metal disc with a mall opening in the center that is located
inside of the PID. It limits the size of the x-ray beam to a circular 2 inch opening at
the PID.
, PID: Position Indicatior Device, the open-ended lead-lined cylinder that extends
from the opening of the metal housing.
The x-ray tube is the _____ of the x-ray generating system - ANSWER heart
Define cathode and anode. - ANSWER Cathode: The negative electrode. It
consists of a tungsten filament in a focusing cup made of molybdenum. It supplies
the electrons necessary to generate x-rays.
Anode: The positive electrode. Composed of a tungsten target that is embedded
in a larger copper stem. It acts as the target for the electrons.
The PID is used for: - ANSWER Aim the x-ray beam at the film in the patients
mouth
List and define the components of the control panel. - ANSWER Master switch:
used to turn the machine on and off.
Indicator light: the orange light shows when the master switch is on. The red light
comes on when the exposure button is being pushed and x-rays are being emitted.
Explain how x-rays are produced in the x-ray machine. - ANSWER The electrical
current enters the control panel and travels from the control panel to the
tubehead through electrical wires in the extension arm.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller StudySet. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $12.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
78252 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now