Dentistry - Tooth restoration Exam Set Questions With Revised Correct Detailed Answers |Guarantee Pass!!
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Dentistry - Tooth restoration Exam
Set Questions With Revised
Correct Detailed Answers
|Guarantee Pass!!
1. All Class III lesions should be filled with composite resin, because they are
aesthetically important.
(a) both the statement and the reason are correct and related
(b) both the...
Dentistry - Tooth restoration Exam
Set Questions With Revised
Correct Detailed Answers
|Guarantee Pass!!
1. All Class III lesions should be filled with composite resin, because they are
aesthetically important.
(a) both the statement and the reason are correct and related
(b) both the statement and the reason are correct but not related
(c) the statement is correct, but the reason is not
(d) the statement is not correct, but the reason is correct
(e) neither the statement nor the reason is correct - ANSWER (e) neither the
statement nor the reason is correct
2. The ideal amount of dentin required between an amalgam restoration and the
pulp for insulation is:
(a) 0.5mm
(b) 1.0mm
(c) 2.0mm
(d) 3.0mm - ANSWER (c) 2.0mm
3. A patient comes in claiming that their holistic doctor told him that he has an
allergy to mercury and needs only white fillings. Your best response is:
,a) there is no such thing as a mercury allergy; plus, there is no mercury in
amalgam fillings
(b) you might have mercury allergy, but that is very rare; plus, there is no mercury
in amalgam fillings
(c) there is no such thing as a mercury allergy, plus, with proper isolation and
technique, your exposure will be minimal
(d) you might have a mercury allergy, but that is very rare; plus, with proper
isolation and technique, your exposure will be minimal - ANSWER (d) you
might have a mercury allergy, but that is very rare; plus, with proper isolation and
technique your exposure will be minimal
4. Which of the following are similarities between amalgam Class II restorations
and inlay Class II restorations? (Select all)
(a) occlusal isthmus width
(b) depth into dentin
(c) convergent walls on the occlusal surface
(d) axiopulpal line angle shape
(e) gingival wall form
(f) internal line angles - ANSWER (a) occlusal isthmus width
(b) depth into dentin
(d) axiopulpal line angle shape
5. You would prefer your assistant over triturate the amalgam rather than under
triturate it. This is because an over triturated amalgam will still have optimal
strength.
(a) both statements are true
(b) both statements are false
,(c) the first statement is true, the second is false
(d) the first statement is false, the second is true - ANSWER (a) both
statements are true
6. Class V amalgam restorations rarely require retentive grooves, but if they are
used, they are placed at the incisoaxial and gingivoaxial line angles
(a) both statements are true
(b) both statements are false
(c) the first statement is true, the second is false
(d) the first statement is false, the second is true - ANSWER (d) the first
statement is false, the second is true
7. Delayed expansion of amalgam restorations is associated with which two
factors?
(a) insufficient trituration and condensation
(b) high residual mercury
(c) the contamination of the amalgam by moisture during trituration and
condensation
(d) the failure to use a cavity varnish - ANSWER (a) insufficient trituration and
condensation
(c) the contamination of the amalgam by moisture during trituration and
condensation
8. Proper condensation and carving makes an amalgam restoration stronger
because it removes the mercury-rich matrix
(a) both the statement and the reason are correct and related
(b) both the statement and the reason are correct but not related
, (c) the statement is correct, but the reason is not
(d) the statement is not correct, but the reason is correct
(e) neither the statement nor the reason is correct - ANSWER (a) both the
statement and the reason are correct and related
9. Which phase of the amalgam reaction is prone to corrosion in clinical
restorations?
(a) gamma
(b) gamma-one
(c) gamma-two
(d) gamma-three - ANSWER (c) gamma-two
10. When preparing a Class II amalgam restoration, all surface angles should be
approximately 90 degrees.
However, the internal angles should be rounded.
(a) both statements are true
(b) both statements are false
(c) the first statement is true, the second is false
(d) the first statement is false, the second is true - ANSWER (a) both
statements are true
Beveling the gingival cavosurface margin of the proximal box of a Class II
amalgam preparation on a permanent tooth:
(a) should result in a long bevel
(b) is contraindicated because of the low edge strength of amalgam
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