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The custom tray used in making a final complete denture impression must
create adequate space for the impression materialNDEB released questions part 2 set 12
A dental laboratory has returned a removable partial denture framework. The framework fit the master cast well but when tried in the mouth, a stable fit could not be achieved. The possible cause(s) of the problem is/are
1. distortion in the final impression.
2. insufficient retention.
3. improper pour of the master cast.
4. casting error.
(1) and (3)
NDEB released questions part 2 set 13
A dental laboratory has returned a removable partial denture framework. The framework fit the master cast well but when tried in the mouth, a stable fit could not be achieved. The possible cause(s) of the problem is/are
1. distortion in the final impression.
2. insufficient retention.
3. improper pour of the master cast.
4. casting error.
(1) and (3)
NDEB released questions set 8
Final treatment planning for the combined surgical-orthodontic correction of a dentofacial deformity should include
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If a polyvinyl siloxane material is used to make the final impression for a maxillary cast restoration, the impression tray must
1. be rigid.
2. have occlusal stops.
3. be coated with an appropriate adhesive.
4. cover the hard palate.
(1) (2) (3)
NDEB released questions set 10
Which of the following is an acceptable means to obtain the gingival retraction that isneeded when using an elastomeric impression material for making a final impression in fixed prosthodontics?
1. Electrosurgery.
2. A moist retraction cord.
3. A copper band that is removed when the impression is made.
4. Using a heavy body material in the impression tray.
(1) (2) (3)
NDEB released questions set 10
6A62 - If the voltage to a circuit is doubled and the resistance is increased to three times the original value, what will be the final current?
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Which tennis player has not lost four Wimbledon singles finals?
Ivan LendlSport Trivia (difficulty 2)
Which woman thrashed her opponent 6-0 6-0 in the 1988 French Open final?
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The muscle of the floor of the mouth in the molar region which requires special attention in the final mandibular denture impression is the
mylohyoid.Planets 31
A dental laboratory has returned a removable partial denture framework. The framework fit the master cast well but when tried in the mouth, a stable fit could not be achieved. The possible cause(s) of the problem is/are
1. distortion in the final impression.
2. insufficient retention.
3. improper pour of the master cast.
4. casting error.
(1) and (3)
Planets 29
Which of the following is/are (an) acceptable mean(s) to obtain the gingival retraction that is needed when using an elastomeric impression material for making a final impression in fixed prosthodontics?
1. Electrosurgery.
2. A moist retraction cord.
3. A copper band that is removed when the impression is made.
4. Using a heavy body material in the impression tray.
All of the above.
Planets 27
If a polyvinyl siloxane material is used to make the final impression for a maxillary cast restoration, the impression tray must
1. be rigid.
2. have occlusal stops.
3. be coated with an appropriate adhesive.
4. cover the hard palate
(1) (2) (3)
Planets 27
Which of the following impression materials is NOT recommended for making a final impression for fabrication of dies for a porcelain fused to metal crown?
Irreversible hydrocolloid
History 1
Which of the following impression materials is NOT recommended for making a final impression for fabrication of dies for a porcelain fused to metal crown?
Irreversible hydrocolloid
Moc 1

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