MDS PREP
Which of the following movement(s) is/are involved in the opening of the mouth?
1. Only hinge
2. Only translation
3. Hinge followed by translation
4. Translation followed by hinge
Prosthodontics
Answer: 3
The movement involved in the opening of the mouth is hinge followed by translation.
Posterior palatal seal is recorded when the head is bent at
1. 30 degree
2. 150 degree
3. 60 degree
4. 45 degree
Prosthodontics
Answer: 1
Posterior palatal seal is recorded when the head is bent at 30 degrees.
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.
Penumbra in a processed film is related to
1. Magnification
2. Sharpness of image
3. Detail of the image
4. All of the above
Prosthodontics
Answer: 4
Penumbra in a processed film is related to all of the above: magnification, sharpness of image, detail of the image.
Electrocogulation is used for
1. Gingivectomy
2. Flap surgeries
3. Mucogingival surgeries
4. All of the above
Electrocogulation is used for gingivectomy.
If the clasp assembly is not being placed on a tooth adjacent to an edentulous
area, the minor connector must
be positioned
1. in the embrasure between two teeth
2. on the lingual surface of the tooth distal to the edentulous space
3. on the lingual surface of the tooth mesial to the edentulous space
4. on any tooth with a convex lingual surface
Prosthodontics
Answer: 1
Explanation: The minor connector should be positioned in the embrasure between
two teeth to provide adequate support and stability for the clasp assembly. This
positioning helps distribute forces evenly and maintains the integrity of the
prosthesis. The other options do not provide the same level of support.
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.
All of the following statements about denture stomatitis are true EXCEPT
1) It is usually not associated with a sore mouth
2) It is usually associated with wearing a denture at night
3) It is more common in diabetes
4) It is more common in men
Prosthodontics
Answer: 4
Explanation:
It is usually not associated with a sore mouth: This
statement is true. Denture stomatitis can occur without
significant soreness, although some patients may experience discomfort. The
condition is often asymptomatic, especially in its early stages.
It is usually associated with wearing a denture at night:
This statement is true. Wearing dentures continuously,
especially at night, can create a favorable environment for the growth of
Candida species, which is a common cause of denture stomatitis.
It is more common in diabetes: This statement is true.
Individuals with diabetes are at a higher risk for infections, including
oral candidiasis, which can lead to denture stomatitis.
It is more common in men: This statement is not
true. Denture stomatitis is generally more prevalent in women,
particularly postmenopausal women, due to hormonal changes that can affect
oral mucosa and immune response.