MDS PREP
When recording jaw relations, the danger of displacing the baseplates can be
minimized by
1. fabricating wax occlusal rims
2. lining the baseplate with acrylic resin
3. fabricating compound occlusal rims
4. lining the baseplate with zinc oxide-eugenol impression paste
Prosthodontics
Answer: 4
Explanation: Lining the baseplate with zinc oxide-eugenol impression paste
provides a more stable and accurate fit during jaw relation records. This
material can help capture the contours of the underlying tissues and minimize
movement of the baseplate, thus reducing the risk of displacing it during the
recording process. The other options may not provide the same level of
stability.
Which of the following is likely to occur if the VDO is increased in a cornplete denture patient?
1. Loss of lip fullness
2. Decreased nose-chin distance
3. Clicking of teeth
4. Loss of tone of facial tissues
Prosthodontics
Answer: 3
Which of the following is likely to occur if the VDO is increased in a complete denture patient: clicking of teeth.
The thickness of the spacer used in spicial tray is
1. 2.5 mm
2. 2.0 mm
3. 1.5 mm
4. 1.0 mm
Prosthodontics
Answer: 2
The thickness of the spacer used in a special tray is 2.0 mm.
The main purpose of covering as much area as possible within functional limits by impression is to
1. Distribute the occlusal stresses and increase the peripheral seal
2. Increase the bulk of CD which helps to seat the denture
3. To increase the bulk of CD to prevent its fracture
4. All of the above
Prosthodontics
Answer: 1
The main purpose of covering as much area as possible within functional limits by impression is to distribute the occlusal stresses and increase the peripheral seal.
Indications for the use of a removable partial denture include:
1) Large edentulous space, deep undercut of abutment, not posterior of
abutment.
2) Periodontitis of abutment, aesthetic concerns for posterior teeth, not
posterior of abutment.
3) Deep undercut of abutment, periodontitis of abutment, not posterior of
abutment.
4) Large edentulous space, not posterior of abutment, periodontitis of
abutment
Prosthodontics Answer: 4
A removable partial denture is indicated in cases of large edentulous spaces, especially when there is periodontitis affecting the abutment teeth, as it can help restore function and aesthetics.
While taking impression of flabby fibrous tissue on maxillary ridge for complete denture care is taken to
1. Use a tray with spacer
2. Not maintain intimate contact with tissues
3. Use a close fitting tray
4. Follow normal procedures
Prosthodontics
Answer: 1
While taking an impression of flabby fibrous tissue on the maxillary ridge for complete denture, care is taken to use a tray with spacer.
The main purpose of boxing an impression is
1. To serve as a base for cast poured
2. To preserve the border width after border moulding
3. To prevent distortion of the impression
4. All of the above
Prosthodontics
Answer: 2
The main purpose of boxing an impression is to preserve the border width after border molding.
Primary stress bearing area in mandibular edentulous ridge is
1. Buccal shelf
2. Crest of the ridge
3. Retromolar pad
4. Lingual flange
Prosthodontics
Answer: 1
The primary stress-bearing area in the mandibular edentulous ridge is the buccal shelf.