Radiology Verified Questions with CORRECT Answers (Grade A+)
Question 1:
Describe the uses of dental imaging
Answer:
1. Detect lesions, diseases & conditions of the teeth 2. Confirm or classify suspected disease 3. Localize
lesions or foreign objects 4. Provide info during dental procedures 5. Eval growth & development 6.
Illustrate changes secondary to caries, periodontal disease & trauma 7. Document condition of a
patient at a specific point and time 8. Aid in the development of a clinical tx plan
Question 2:
Describe the discovery of X-radiation
Answer:
The First X-ray, 1895. ... At the end of the 19th century, while studying the effects of passing an
electrical current through gases at low pressure, German physicist Wilhelm Röntgen accidentally
discovered X- rays—highly energetic electromagnetic radiation capable of penetrating most solid
objects
Question 3:
Who was the first person to make practical use of x- ray in dentistry
Answer:
C. Edmund Kells in 1896.
Question 4:
When electrons are removed from the orbital shells of electrically stable atoms through collisions with
x-ray photons
Answer:
What happens during ionization
Question 5:
Properties of X-ratiation
,Answer:
X-ray are a form of energy that can penetrate matter. X-rays belong to a group classified as
electromagnetic radiation. Visible light, radar, raddio, and television are waves that are also classufued
as electromagnetic radiation. The shorter the wavelength of the x-ray the great is its energy. Bc of
their high energy short wavelengths can penertrate matter more easily than longer wavelengths
making shorter wavelengths useful
Question 6:
Primary components of an x-ray machines
Answer:
Tubehead, Extension arm,and the control panel
Question 7:
Understand what each part contributes to the production of x-ray
Answer:
Position indicator device-this is placed agaist the persons face a extension arm- moves and turns 360
degrees control panel- to operate several tubehead located i seprate rooms
Question 8:
What is usually found on the control panel
Answer:
master switch, indicator light, selector buttons, exposure button
Question 9:
how are x-rays produced
Answer:
The current travels from the control panel to teh tubehead through electrical wires in the extension
arm the current travels through the step down transformer to the filament of the cathode the
filament circuit uses the 3 to 5 volts to heat the tungsten filament in the cathode portion of the x-ray
tube after exposure is clicked the elctrons in the cloud are shot across the x-ray tube to the anode the
, electrons speed fro the cathode to anode the heat is carried away from the coper stem and is
absorbed travel through unleaded glass window x-ray beam then travels through the collimator
Question 10:
during the production of x-ray how much energy is lost as heat
Answer:
99% lost at heat
Question 11:
three types of radiation
Answer:
primary radiation-made up of x-rays that come form the target of teh xray tube secondary radiation-
created when the primary beam interacts with matter Ex contacts the patient tissues scatter
radiation-occurs when an xray beam has been deflected from its path through interaction with matter,
travels to all parts of the patient's body and all areas of the dental operaty
Question 12:
Identify the kilovoltage range for most dental xrays machines:
Answer:
or 70 to90
Question 13:
range for milliamperage required
Answer:
C. 7-15 mA
Question 14:
Radiolucent and radiopauge
Answer:
radiolucent-dark radipauge-light
Question 1:
Describe the uses of dental imaging
Answer:
1. Detect lesions, diseases & conditions of the teeth 2. Confirm or classify suspected disease 3. Localize
lesions or foreign objects 4. Provide info during dental procedures 5. Eval growth & development 6.
Illustrate changes secondary to caries, periodontal disease & trauma 7. Document condition of a
patient at a specific point and time 8. Aid in the development of a clinical tx plan
Question 2:
Describe the discovery of X-radiation
Answer:
The First X-ray, 1895. ... At the end of the 19th century, while studying the effects of passing an
electrical current through gases at low pressure, German physicist Wilhelm Röntgen accidentally
discovered X- rays—highly energetic electromagnetic radiation capable of penetrating most solid
objects
Question 3:
Who was the first person to make practical use of x- ray in dentistry
Answer:
C. Edmund Kells in 1896.
Question 4:
When electrons are removed from the orbital shells of electrically stable atoms through collisions with
x-ray photons
Answer:
What happens during ionization
Question 5:
Properties of X-ratiation
,Answer:
X-ray are a form of energy that can penetrate matter. X-rays belong to a group classified as
electromagnetic radiation. Visible light, radar, raddio, and television are waves that are also classufued
as electromagnetic radiation. The shorter the wavelength of the x-ray the great is its energy. Bc of
their high energy short wavelengths can penertrate matter more easily than longer wavelengths
making shorter wavelengths useful
Question 6:
Primary components of an x-ray machines
Answer:
Tubehead, Extension arm,and the control panel
Question 7:
Understand what each part contributes to the production of x-ray
Answer:
Position indicator device-this is placed agaist the persons face a extension arm- moves and turns 360
degrees control panel- to operate several tubehead located i seprate rooms
Question 8:
What is usually found on the control panel
Answer:
master switch, indicator light, selector buttons, exposure button
Question 9:
how are x-rays produced
Answer:
The current travels from the control panel to teh tubehead through electrical wires in the extension
arm the current travels through the step down transformer to the filament of the cathode the
filament circuit uses the 3 to 5 volts to heat the tungsten filament in the cathode portion of the x-ray
tube after exposure is clicked the elctrons in the cloud are shot across the x-ray tube to the anode the
, electrons speed fro the cathode to anode the heat is carried away from the coper stem and is
absorbed travel through unleaded glass window x-ray beam then travels through the collimator
Question 10:
during the production of x-ray how much energy is lost as heat
Answer:
99% lost at heat
Question 11:
three types of radiation
Answer:
primary radiation-made up of x-rays that come form the target of teh xray tube secondary radiation-
created when the primary beam interacts with matter Ex contacts the patient tissues scatter
radiation-occurs when an xray beam has been deflected from its path through interaction with matter,
travels to all parts of the patient's body and all areas of the dental operaty
Question 12:
Identify the kilovoltage range for most dental xrays machines:
Answer:
or 70 to90
Question 13:
range for milliamperage required
Answer:
C. 7-15 mA
Question 14:
Radiolucent and radiopauge
Answer:
radiolucent-dark radipauge-light
