MDS PREP
Instrument which has a 4 digit formulae;
1) angle former
2) hoe
3) hatchet
4) spoon excavator
Prosthodontics
Answer: 1
Instrument which has a 4 digit formulae is angle former.
Which tooth carries the heaviest load in a complete denture patient ?
1. Second bicuspid
2.First molar
3 Second molar
4 First bicuspid
Prosthodontics
Answer: 1
Explanation: In complete denture patients, the second bicuspid
often carries a significant load during mastication due to its position and the
occlusal forces exerted during chewing. This tooth's location allows it to
support the occlusal forces effectively, making it crucial in the overall
function of the denture.
If freeway space is obliterated, it would result in (or) Increased vertical dimension at occlusion (VDO) results in
1. Improper aesthetics
2. Clicking sounds of the dentures
3. Trauma to the underlying ridges
4. All of the above
Prosthodontics
Answer: 4
If freeway space is obliterated, it would result in all of the above: improper aesthetics, clicking sounds of the dentures, trauma to the underlying ridges.
If the clasp assembly is not being placed on a tooth adjacent to an edentulous
area, the minor connector must
be positioned
1. in the embrasure between two teeth
2. on the lingual surface of the tooth distal to the edentulous space
3. on the lingual surface of the tooth mesial to the edentulous space
4. on any tooth with a convex lingual surface
Prosthodontics
Answer: 1
Explanation: The minor connector should be positioned in the embrasure between
two teeth to provide adequate support and stability for the clasp assembly. This
positioning helps distribute forces evenly and maintains the integrity of the
prosthesis. The other options do not provide the same level of support.
The impression material that can record tissues in functional form
1. Impression paste
2. Alginate
3. Plaster of paris
4. Fluid wax
Prosthodontics
Answer: 1
The impression material that can record tissues in functional form is impression paste.
Instructing the patient to say "ah" with short vigogous bursts will help in visualizing
1. Soft palate
2. Posterior vibrating line
3. Anterior vibrating line
4. Junction of hard and soft palate
Prosthodontics
Answer: 3
Instructing the patient to say "ah" with short vigorous bursts will help in visualizing the anterior vibrating line.
Vomiting during impression making procedures may be prevented by
1. Sedating the patient
2. Injecting local anaesthetic
3. Asking patient to come on empty stomach
4. Change the impression material
Prosthodontics
Answer: 2
Vomiting during impression-making procedures may be prevented by injecting local anaesthetic.
The range of motion, as measured in millimeters, is least for the
1. pure hinge like opening and closing movement
2. protrusive movement
3. left lateral movement
4. Bennet movement
Prosthodontics
Answer: 4
Explanation:
Pure hinge-like opening and closing movement: The range of pure rotation in
the temporomandibular joint (TMJ) was determined to be up to 15–20 mm in the
1960s. However, recent research suggests that pure rotational movement may not
occur.
Protrusive movement: The normal range of motion for protrusive movement is
8–12 mm.
Left lateral movement: The normal range of motion for left lateral movement
is 8–12 mm. The normal range of motion for mouth opening is 35–60 mm.
The average immediate Bennett shift was found to be 1.05 mm on the left
side and 1.12 mm on the right side when firm guidance was used.