textbook), Chapters 21-32 exam study
________ __________ establishes the amount of radiation and
exposure time required to create an image on a film. Correct
Answers Film speed
_________ refers to the actual quantity of x-rays given off by
the x-ray tube or the radiation source. Correct Answers Dose
__________ anesthesia, in a strict sense, is anesthesia of a small
part of the body such as a __________ or __________
________________. Correct Answers Local, tooth, oral
mucosa
__________ are complex structures composed of many different
________ and are susceptible to the damaging effects of x-rays
because, as discussed earlier, ionization causes changes in the
makeup of atoms. Therefore, damage to a cell's atoms may
result in disruption of cell division or death of the cell entirely
and hence, damage to the living organism. Correct Answers
Cells, atoms
__________ are used for patients with strong _________ reflex.
Correct Answers Sprays, gag
__________ techniques are used for exposing intraoral
radiographs. Correct Answers Two
___________ is another important factor in determining the
effects of radiation on living tissues. Children and pregnant
,women are especially sensitive to the ________________
effects of radiation. Correct Answers Age, biological
____________ are generally large in circumference and can be
straight or slightly bent in design. Correct Answers HVE
_____________ and _______________ anesthetics are
commonly used in dentistry for routine procedures where pain
control is needed, such as when ________________ crowns,
____________ band placement, _______________ and root
planning, and periodontal probing. Correct Answers Local,
topical, seating, matrix, scaling
______________ and ___________ topical anesthetic can be
used to numb a ________ area of the local _______________.
Correct Answers Liquid, spray, wide, mucosa.
______________ anesthetics work by _____________ the nerve
endings in the __________ _________________ at the local
injection site. Correct Answers Topical, numbing, oral mucosa
______________ can be useful when taking dental
_______________________ or _________________________.
Correct Answers Sprays, radiographs, impressions.
_______________ ____________ ______________ are devices
used to stabilize dental film in a patient's mouth. Correct
Answers Dental film holder
________________ anesthetics provide surface numbness so
that the ___________
, anesthetic can be injected with minimal discomfort. Correct
Answers topical, local
________________ radiation is radiation that escapes or leaks
out of the tube head. This type of radiation only serves to expose
the patient or dental personnel to unnecessary radiation. Correct
Answers Leakage
_________________ radiation is a form of secondary radiation
occurring once the primary beam has interacted with matter.
Correct Answers scatter
_________________ radiation is the most dangerous to the
operator. Correct Answers Secondary
_________________ radiation will expose tissues other than
those of the primary objective after the initial contact including
the operator. Correct Answers Scatter
__________________ ___________________
_____________________ is part of the "dental unit" and is used
to remove water, blood, saliva, and debris from the oral cavity
and to retract oral tissues such as the tongue and cheek away
from the working field. Correct Answers High volume
evacuator
__________________ was discovered in __________ and first
used as a local anesthetic in _________. Correct Answers
Cocaine, 1860, 1884.