Exam (elaborations)
RDAEF2 MIX/TISSUE MANAGEMENT/IMP/AMALGAM/ TESTS FROM SCHOOL
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RDAEF2 MIX/TISSUE MANAGEMENT/IMP/AMALGAM/ TESTS FROM SCHOOL
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RDAEF2 MIX/TISSUE MANAGEMENT/IMP/AMALGAM/TESTS FROM SCHOOL
Often the occlusal impression is referred to as a ------and will accompany both a
preliminary and a final impression
A Bite registration
There are three major key properties when considering the variety of material available
for impression. Which of the following is NOT considered a key property ?
C malleability
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There are three classification of impressions based on how they will be used which one
of those are NOT considered an impression classification
Intermediate
Hydrocolloid
water-based elastic impression material
Polyether
rubber impression material containing ether properties
Polyvinyl Siloxane
very accurate elastomer impression material with added silicone used primarily for
crown and bridge
dimensional stability
The ability of a material to keep its shape after it has been removed from the mouth
Hydrophobic
material that naturally repel water
Once the type of impression tray is determined sizing and fit is critical to ensure the
most comprehensive result possible .depth sufficient to allow-----millimeters of material
between the tray and the incisor or occlusal edges of the teeth is an important criterion.
2-3
, what is the primary character of a perforated tray
holes in the tray create a mechanical lock for the material to remain securely in place
if necessary a tray 's length or depth may be adapted to fit the patient more accurately
by extending it using?
Compound wax /utility wax
A DENTIST can perform a margin in a number of different ways with each ways having
a different name. it is important for an RDAEF@to understand the clinical aspect of a
margin for two main reasons what are they
1. visualization of the margin in the final impression
2. tactile feel while packing the cord
Which of the following margin-type are very difficult to detect while packing the cord and
see the final impression?
Shoulderless
-------- Is the ability to control moisture and bleeding arising from the sulcular area
following tooth preparation
Hemostasis
the hole goal of taking master/final impression is to
see the margin created by the dentist during the preparation phase
T/F If the bleeding or sulcular fluid is rising up from the sulcus the blood will not allow
the cord to be properly placed
TRUE
T/F The sulcus will produce more sulcular fluids as a measure of protecting the soft
tissue in response to the trauma of being nicked by the bur while the tooth was
prepared
TRUE
T/F Hemostatic agent contain epinephrine which can speed up the heart and introduce
added adrenaline to the blood stream
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