MDS PREP
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.
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.
Occlusal rims are also called
1. Dummy dentures
2. Trial dentures
3. Immediate dentures
4. Overdentures
Prosthodontics
Answer: 1
Occlusal rims are also called dummy dentures.
What is the function of the analyzing rod in a dental surveyor?
1) To clean the cast
2) To contour wax patterns
3) To measure the depth of cavities
4) To analyze the cast for undercuts
Prosthodontics
Answer: 4
The analyzing rod is a straight metal shaft used
to evaluate the presence or absence of undercuts on the cast.
Fovea palatine are situated in
1. Hard palate
2. Soft palate
3. At the junction of hard and soft palate
4. Their position is not fixed
Prosthodontics
Answer: 2
Fovea palatine are situated in the soft palate.
"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.
The distal palatal termination of the complete denture is dictated by the
1. Tuberosity
2. Vibrating line
3. Fovea palatine
4. Maxillary tori
Prosthodontics
Answer: 2
The distal palatal termination of the complete denture is dictated by the vibrating line.
The relationship of the denture base that resists dislodgement of denture in the horizontal direction is
1. Stability
2. Pressure
3. Support
4. Retention
Prosthodontics
Answer: 1
Terms:
Stability:
Stability refers to the ability of a denture to resist horizontal
forces that may cause it to move or dislodge. A stable denture base
remains in place during function, such as chewing or speaking, and is
crucial for the overall comfort and effectiveness of the prosthesis.
Stability is influenced by the design of the denture, the fit of the
base, and the anatomy of the underlying tissues.
Pressure:
Pressure refers to the force exerted by the denture base against the
underlying tissues. While pressure is important for retention and
support, it does not specifically describe the resistance to horizontal
dislodgement.
Support:
Support refers to the resistance of the denture base to vertical
forces. It is provided by the underlying bone and soft tissues, ensuring
that the denture does not sink into the tissues under occlusal load.
Retention:
Retention is the ability of the denture to stay in place against
vertical dislodging forces. It is primarily influenced by factors such
as the fit of the denture, the use of adhesives, and the presence of
suction or interfacial tension between the denture base and the oral
tissues.