Questions with Complete Detailed Verified
Answers Graded A+.
1.In the federation dentaire international system for
numbering, a permanent maxillary right first molar is: -
ANSWER ✓ 16
2. What must you avoid when finishing proximal areas of
the amalgam restoration - ANSWER ✓ Damaging the
contact area
3. Damage to the soft tissue during placement of
restorative material may cause bleeding that can interfere
with material causing - ANSWER ✓ Improper bonding
improper curing
Lead to open margins
4. And EFDA may need to place retraction cord so that
the resultant restorative material can be placed without
contamination from the - ANSWER ✓ Sulcular fluid
Blood
,5. When taking a final crown impression you must have
your cord placed so that you can view the entire finish line,
as well as _______ mm of unexposed axial wall apical to
the finish line - ANSWER ✓ 0.5-1.0mm
6. There are many techniques that can achieve retraction.
these include - ANSWER ✓ Retraction cord
Electrosurgery
Chemical Reagant
7. True or false. Gingival retraction cord is not the most
effective, What is the most commonly used method of
attraction for most clinicians - ANSWER ✓ False
8. A precaution to consider when placing retraction cord
with racemic epinephrine is that it may cause - ANSWER
✓ Elevation in blood pressure and tachycardia
9. Retraction cord can expand when wet therefore -
ANSWER ✓ Opens the sulcus to a greater size than the
original cord size
, 10. Common astringent hemostatic agents used with
retraction cord include - ANSWER ✓ Ferric sulfate
Aluminum sulfate
11. Studies have shown that hemostatic agent effects can
last up to_______ after cord has been removed -
ANSWER ✓ 20 mins
12. Generally speaking what is the first step in cord
placement - ANSWER ✓ Evaluate the area where the
prep is located and gingival tissue
13. In the early_______, New conservative preparation's
were developed that include what became known as
tunnel and slot cavity designs - ANSWER ✓ 1990s
14. The ________ preparation was designed to avoid the
removal of the marginal ridge and the issues surrounding
the proper replacement of the marginal ridge - ANSWER
✓ Tunnel
15. The _______ preparation when restored frequently
result in fracture of the unsupported _________ -
ANSWER ✓ Tunnel, marginal ridge