SC Dental Radiology Exam 2022 || A+ Verified Solutions.
xrays are a form of ____ radiation and can ___ or ___ through the human body and produce ___
images. correct answers Electromagnetic radiation ,Penetrate or pass, shadow-like
Xrays, also known as ___ , are a photographic image that can be seen on Film/screen. correct
answers Xrays
How are xray images produced? correct answers By directing Xray beams, invisible straight
lines traveling at constant speed and made visible by processing the image.
How are radiographs used?? correct answers To help dentists prevent, monitor and diagnose
potential oral health care issues in a patients mouth before a major problem occurs.
How are xrays produced? correct answers by a machine whose source is energy through
electricity. Xrays are invisible beams that travel in a straight line that can pass through soft tissue
and be absorbed by dense tissue.
How can radiation effect the body? correct answers It can effect body tissues and cells that can
carry hereditary materials for future generations
What are the most common type of xrays?diagnose: correct answers Intraoral
Xrays for adults: correct answers Decay between teeth, decay under filling, bone loss from perio
disease, problems at root (infection or death in nerve), detect cysts, cancer or changes caused by
disease.
Xrays for kids/teens: correct answers Find decay damage to fillings, monitor tooth growth/
development, determine if permanent teeth are coming in properly, see if teeth are impacted and
help plan, prep and place braces.
What does NCRP stand for? What does this agency do? correct answers NCRP stands for
National Council on Radiation Protection. Estab. recommendations for acceptable levels of
radiation exposure.
What are MPDs? correct answers Maximum permissible dose and categorized for gen pop,
occup. worker and pregnant women. represents greatest amount of radiation exposure accepted
as not producing significant harmful biological effects.
Annual radiation dose limit for adults correct answers 5 rems (0.05Sv)
How is radiation dose measured? correct answers Measures how much energy is absorbed when
something or someone is exposed to Xrays. The absorption of energy can cause damage to a
person
, 2 common ways radiation is measured correct answers At pt skin surface (entrance surface air
Kerma) and effective dose.
How is radiation dose Described? correct answers Using the quantity effective dose, expressed in
millisievert (mSv)
What is the fatal dose of an Xray exam? correct answers 0.3 uSv
Total effective dose should not exceed ___
in a year correct answers 0.1 Rem or 1 mSv
For Natural Background Radiation , a person can be exposed from ___ every year correct
answers 1-3 mSv
2 main categories of radiographs correct answers intraoral and extraoral
intraoral xrays allows dentist to correct answers Find cavities, look at tooth roots, check the
health of boney area,status of developing teeth, monitor tooth health
Bitewing Xrays are used for correct answers Looking at crowns of teeth and find decay between
back teeth
Periaprical xrays are for correct answers highlighting 1 or 2 teeth at a time , shows entire length
of tooth, to look for problems with tooths root or surrounding jaw bone as well as cavities.
Occusal xrays are for correct answers largest of xrays and highlights tooth development and
placement or localization of teeth, shows a full arch
Extraoral Xrays are for correct answers known as big picture xrays, show relationship between
teeth, jaw and skull, keep track of growth and development, status of impacted teeth, less
detailed then intraoral
Panoramic Xrays are for correct answers Used to wee emerging teeth,, impacted teeth, TMJ or
tumors.. Shows entire mouth on single film, includes all teeth on both upper and lower
jaws.requires intensifying screens to minimize radiation exposure to patients.
cephalometric projections are for correct answers look at teeth in relation to jaw, ortho
placement. shows entire side of head
The CBCT provides a 3 dimensional image correct answers True
what are the 2 types of digital imaging correct answers PSP and CCD
Nomad device is approved by ____ and must have a scatter shield of no less then ___ lead
equivalent and a ____ diameter correct answers DHE, 0.25 mm and 15.2 cm
xrays are a form of ____ radiation and can ___ or ___ through the human body and produce ___
images. correct answers Electromagnetic radiation ,Penetrate or pass, shadow-like
Xrays, also known as ___ , are a photographic image that can be seen on Film/screen. correct
answers Xrays
How are xray images produced? correct answers By directing Xray beams, invisible straight
lines traveling at constant speed and made visible by processing the image.
How are radiographs used?? correct answers To help dentists prevent, monitor and diagnose
potential oral health care issues in a patients mouth before a major problem occurs.
How are xrays produced? correct answers by a machine whose source is energy through
electricity. Xrays are invisible beams that travel in a straight line that can pass through soft tissue
and be absorbed by dense tissue.
How can radiation effect the body? correct answers It can effect body tissues and cells that can
carry hereditary materials for future generations
What are the most common type of xrays?diagnose: correct answers Intraoral
Xrays for adults: correct answers Decay between teeth, decay under filling, bone loss from perio
disease, problems at root (infection or death in nerve), detect cysts, cancer or changes caused by
disease.
Xrays for kids/teens: correct answers Find decay damage to fillings, monitor tooth growth/
development, determine if permanent teeth are coming in properly, see if teeth are impacted and
help plan, prep and place braces.
What does NCRP stand for? What does this agency do? correct answers NCRP stands for
National Council on Radiation Protection. Estab. recommendations for acceptable levels of
radiation exposure.
What are MPDs? correct answers Maximum permissible dose and categorized for gen pop,
occup. worker and pregnant women. represents greatest amount of radiation exposure accepted
as not producing significant harmful biological effects.
Annual radiation dose limit for adults correct answers 5 rems (0.05Sv)
How is radiation dose measured? correct answers Measures how much energy is absorbed when
something or someone is exposed to Xrays. The absorption of energy can cause damage to a
person
, 2 common ways radiation is measured correct answers At pt skin surface (entrance surface air
Kerma) and effective dose.
How is radiation dose Described? correct answers Using the quantity effective dose, expressed in
millisievert (mSv)
What is the fatal dose of an Xray exam? correct answers 0.3 uSv
Total effective dose should not exceed ___
in a year correct answers 0.1 Rem or 1 mSv
For Natural Background Radiation , a person can be exposed from ___ every year correct
answers 1-3 mSv
2 main categories of radiographs correct answers intraoral and extraoral
intraoral xrays allows dentist to correct answers Find cavities, look at tooth roots, check the
health of boney area,status of developing teeth, monitor tooth health
Bitewing Xrays are used for correct answers Looking at crowns of teeth and find decay between
back teeth
Periaprical xrays are for correct answers highlighting 1 or 2 teeth at a time , shows entire length
of tooth, to look for problems with tooths root or surrounding jaw bone as well as cavities.
Occusal xrays are for correct answers largest of xrays and highlights tooth development and
placement or localization of teeth, shows a full arch
Extraoral Xrays are for correct answers known as big picture xrays, show relationship between
teeth, jaw and skull, keep track of growth and development, status of impacted teeth, less
detailed then intraoral
Panoramic Xrays are for correct answers Used to wee emerging teeth,, impacted teeth, TMJ or
tumors.. Shows entire mouth on single film, includes all teeth on both upper and lower
jaws.requires intensifying screens to minimize radiation exposure to patients.
cephalometric projections are for correct answers look at teeth in relation to jaw, ortho
placement. shows entire side of head
The CBCT provides a 3 dimensional image correct answers True
what are the 2 types of digital imaging correct answers PSP and CCD
Nomad device is approved by ____ and must have a scatter shield of no less then ___ lead
equivalent and a ____ diameter correct answers DHE, 0.25 mm and 15.2 cm
