MDS PREP
The most desirable temporary record base for an edentulous patient is the one
made from
1. shellac, reinforced with a 12 gauge stainless steel wire
2 cold cure resin by the sprinkle on method
3. polystyrene in a thermal vacuum machine
4. cold cure resin by the noncompression dough technique
Prosthodontics
Answer: 2
Explanation: The cold cure resin by the sprinkle-on method
provides a stable and accurate temporary record base for edentulous patients.
This method allows for better adaptation to the oral tissues and ensures a more
reliable fit during the recording of jaw relations.
What does the term "height of contour" refer to in dental
surveying?
1) The lowest point of a tooth
2) The greatest circumference of a tooth at a selected axial position
3) The average height of all teeth
4) The position of the gum line
Prosthodontics
Answer: 2
The height of contour is defined as the line encircling a tooth that designates its greatest circumference at a specific axial position.
"Guiding planes" relate to
1) Path of insertion
2) Means of retention
3) Extent of undercuts
4) Tilt of abutment teeth
Prosthodontics
Answer: 1
guiding planes are flat, polished surfaces on the abutment teeth that guide the RPD along a specific path during insertion and removal. They are located adjacent to the edentulous area and are crucial for the proper seating and function of the denture.
In an impression of the edentulous mandibular arch, all of the following anatomic landmarks will appear as depressions or grooves, except
1. retromolar pad
2. lingual tuberosity
3. lingual trenum
4. retromylohyoid space
Prosthodontics
Answer: 4
In an impression of the edentulous mandibular arch, all of the following anatomic landmarks will appear as depressions or grooves, except retromylohyoid space.
Which of the following is an example of static method of recording centric relation?
1. Intraoral records
2. Needle
3. House
4. Paterson
Prosthodontics
Answer: 1
Which of the following is an example of a static method of recording centric relation: intraoral records.
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.
Only pure hinge movementsof the mandible occur at
1) centric occlusion
2) centric relation
3) lateral exursion
4) terminal hinge position
Prosthodontics
Answer: 4
Only pure hinge movements of the mandible occur at terminal hinge position.
The secondary peripheral seal in mandibular denture is provided by
1. Buccal shelf
2. Anterior lingual border
3. Retromolar pad
4. Crest of the ridge
Prosthodontics
Answer: 2
The secondary peripheral seal in mandibular denture is provided by the anterior lingual border.