MDS PREP
Uncontrolled diabetes poses a problem to prosthodontist as
1. More bone resorption
2. Increased salivary flow
3. Less bone resorption
4. Less tissue laxity
Prosthodontics
Answer: 1
Uncontrolled diabetes poses a problem to the prosthodontist as it leads to more bone resorption.
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.
In a complete denture, the position of the mandibular first premolar is
determined by the
1. mental foramen
2. adjacent second premolar
3. termination of the mylohyoid ridge
4. mandibular canine
Prosthodontics
Answer: 4
Explanation: In the arrangement of teeth in a complete denture, the
mandibular first premolar is typically positioned with its mesial aspect in
contact with the lateral aspect of the mandibular canine. This is part of the
denture setup to ensure proper occlusal relationships and aesthetics.
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.
House classification is based on
1. Mental attitude of patient
2. Type of alveolar ridge
3. Maxillary and mandible relation
4. None of the above
Prosthodontics
Answer: 1
House classification is based on the mental attitude of the patient.
Which of the following is not a mouth temperature except
1. Adaptol
2. Korrecta type I
3. HL physiologic paste
4. IOWA wax
Prosthodontics
Answer: 2
Which of the following is not a mouth temperature except Korrecta type I.
Excessive vertical dimension (decreased interocclusal distance) results in
1. Improper retention of the denture
2. Senile appearance of face
3. Sagging of the corners of the mouth
4. Trauma to the residual ridges
Prosthodontics
Answer: 4
Excessive vertical dimension (decreased interocclusal distance) results in trauma to the residual ridges.
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.