MDS PREP
Mark the consonant sounds requiring contact between the lips and teeth (labiodentals)
1. d, t, l
2. b, p, m
3. th
4. f, ph, v
Prosthodontics Answer: 4
Labiodental Consonant Sounds
Labiodental sounds are produced by the interaction of
the lower lip and the upper teeth. The sounds "f" and "v" are classic
examples of labiodental consonants. "Ph" is often considered a variant of
"f" in phonetics.
When making peripheral seal for mandibular denture, patient notices that the impression is rising when the patient opens his mouth. It indicates
1. Overextension of the labial and lingual surfaces
2. Overextension of the labial and buccal surfaces
3. Overextension of the lingual surfaces
4. Underextension of the lingual surfaces
Prosthodontics
Answer: 2
When making peripheral seal for mandibular denture, if the impression is rising when the patient opens his mouth, it indicates overextension of the labial and buccal surfaces.
The main purpose of covering the retromolar pad area is
1. Stability
2. Retention
3. Support
4. Contraction
The main purpose of covering the retromolar pad area is retention.
Occlusal rims for making the jaw relations aids in all of the following except
1. Determination of the centric relation
2. Determinatin of the overjet
3. Orientation of plane of occlusion or Camper"s line
4. Estimation of freeway space
Prosthodontics
Answer: 4
Occlusal rims for making the jaw relations aid in all of the following except estimation of freeway space.
The massetric notch in distobuccal corners of the mandibular denture is due to
1. Action of buccinator on masseter
2. Action of masseter on buccinator
3. Action of palatoglossus on buccinator
4. Action of superior constrictor on masseter
Prosthodontics
Answer: 2
The massetric notch in the distobuccal corners of the mandibular denture is due to the action of masseter on buccinator.
After extraction and healing, the maxillary denture encloses severe bony undercuts in both the tuberosities. The best treatment for this condition
1. Reduce the undercuts on one side to allow the path of insertion
2. Reduce both the undercuts so that no bony undercuts exists anywhere on the ridge
3. Use selective pressure technique to displace the tuberosity
4. Do the surgical trimming of the ridge and allow the undercuts to exist
Prosthodontics
Answer: 2
After extraction and healing, the maxillary denture encloses severe bony undercuts in both the tuberosities. The best treatment for this condition is to reduce both the undercuts so that no bony undercuts exist anywhere on the ridge.
If palatel seal is placed too deep, it may result in
1. Improper phonetics
2. Gagging sensation
3. Improper seating of the denture
4. Retention increases with depth
Prosthodontics
Answer: 3
If the palatal seal is placed too deep, it may result in improper phonetics.
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.