MDS PREP
The function of posterior palatal seal (PPS) is
1. To aid in balanced occlusion
2. To aid in insertion and removal of complete denture
3. To ensure a complete seal thus helping in retention of a denture
4. Retention of mandibular denture by sealing its posterior margin
The function of the posterior palatal seal (PPS) is to ensure a complete seal thus helping in retention of a denture.
Which of the following is a step in the surveying procedure?
1) Tooth extraction
2) Cast tilting
3) Tooth whitening
4) Filling cavities
Prosthodontics
Answer: 2
Cast tilting is one of the steps in the surveying procedure, allowing for the assessment of undercuts and the path of insertion.
Loss of several teeth may result in
1. Change in the facial contour
2. TMJ disturbances
3. Periodontal disturbances
4. All of the above
Loss of several teeth may result in all of the above: change in the facial contour, TMJ disturbances, periodontal disturbances.
For a complete denture patient with Class III ridge relation, the freeway space
1. must be increased
2 .must be decreased
3.should be the same as for Class I
4. Do not set teeth for abnormal jaw relations
Prosthodontics
Answer: 2
Explanation: In Class III ridge relations, the freeway space
must be decreased to accommodate the altered jaw relationship and ensure proper
occlusion. This adjustment helps maintain functional stability and comfort for
the patient.
The posterior palatel seal for a maxillary complete denture
1. Is placed immediately posterior to the vibrating line
2. Is placed immediately anterior to the vibrating line
3. Is not necessary if a metal base is made
4. Will vary in outline and depth according to the palatal form
Prosthodontics
Answer: 4
The posterior palatal seal for a maxillary complete denture will vary in outline and depth according to the palatal form.
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.
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.
According to the House classification, patients who are positive in their own
minds that they can never wear artificial dentures are classified as having
1 an indifferent mind
2 an exacting mind
3 a philosophical mind
4 a hysterical mind
Prosthodontics
Answer: 4
Explanation: The House classification categorizes patients
based on their attitudes towards dentures. Those with a "hysterical mind" are
often resistant to the idea of wearing dentures, believing they cannot adapt to
them. This classification helps clinicians understand patient psychology and
tailor their approach accordingly.