MDS PREP
Denture bearing area of the ridge is
1. Non keratinised
2. Keratinised
3. Para keratinised
4. None of the above
Prosthodontics
Answer: 2
The denture-bearing area of the ridge is keratinised.
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.
Before registering face bow transfer, it is necessary to determine
1. Physiological rest space
2. Incisal guidance
3. Centric relation and centric occlusion
4. Terminal hinge axis opening
Prosthodontics
Answer: 4
Before registering face bow transfer, it is necessary to determine terminal hinge axis opening.
The Camper’s plane passes from the
1. lateral commissure of the mouth to the inferior edge of the ear
2. orbitale to the middle of the tragus of the ear
3. ala of nose to the superior edge of the tragus of the ear
4. outer canthus of eye to the most poste rior point on the tragus of the ear
Prosthodontics
Answer: 3
The Camper’s plane passes from the ala of the nose to the superior edge of the tragus of the ear.
Freeway space is defined as
1. Vertical dimension at rest - vertical dimension at occlusion
2. Vertical dimension of occlusion + vertical dimension at rest
3. Vertical dimension at rest
4. Vertical dimension at occlusion - vertical dimension at rest
Prosthodontics
Answer: 1
Freeway space is defined as vertical dimension at rest - vertical dimension at occlusion.
Patient education of complete dentures should start
1. At impression stage and end after processing of dentures
2. At time of initial appointment and continue throughout the treatment
3. At the time of denture delivery and subsequent appointments
4. None of the above
Prosthodontics
Answer: 2
Patient education of complete dentures should start at the time of the initial appointment and continue throughout the treatment.
Vibrating line is on the
1. Hard palate
2. Junction of hard and soft palate
3. Soft palate
4. Junction of muscularis uvulae and palatien muscle
Prosthodontics
Answer: 3
The vibrating line is on the junction of hard and soft palate.
Which of the following is true regarding clasp retention?
1. Cast gold clasps cannot engage greater depth of undercuts than cast
cobalt-chromium alloy clasps of equal dimensions
2. It does not depend on the material from which it is fabricated
3. A wrought clasp requires greater under cut than a cast clasp
4. A cast clasp requires greater undercut than a wrought wire clasp
Prosthodontics Answer: 3
Explanation: Wrought wire clasps are more flexible than cast clasps, allowing them to engage undercuts more effectively. However, they require a greater depth of undercut to achieve the same retention as cast clasps. This is because wrought wire clasps can flex and adapt to the contours of the tooth better than rigid cast clasps. The other statements are incorrect regarding the comparative abilities of clasp materials and their engagement with undercuts.