NEET MDS Quiz - Practice Test

1

Prosthodontics

The purpose of plane of orientation is
1. To serve as a guide in establishing occlusal plane
2. To aid in measuring height and length of posterior teeth
3. Both A and B
4. None of the above

Option 1

Option 2

Option 3

Option 4

📝 Explanation:

The purpose of the plane of orientation is to serve as a guide in establishing the occlusal plane.

2

Prosthodontics

The stability of the mandibular complete denture is enhanced
1. When the level of the occlusal plane is above the dorsum of the tongue
2. When the tongue rests on the occlusal surfaces of lowers at rest
3. When the lateral borders are extended below the external oblique ridge
4. All of the above

Option 1

Option 2

Option 3

Option 4

📝 Explanation:

The stability of the mandibular complete denture is enhanced when the level of the occlusal plane is above the dorsum of the tongue.

3

Prosthodontics

Acrylic resin posterior teeth along with porcelain anterior teeth should not be used in complete dentures because
1. it produces resorption of posterior residual ridge as acrylic teeth wear
2 they cause resorption of anterior residual ridge
3. the combination produces harmful stress concentrations
4 This combination can be used

Option 1

Option 2

Option 3

Option 4

📝 Explanation:

Explanation:�The combination of acrylic resin posterior teeth and porcelain anterior teeth can lead to differential wear and stress concentrations, which may cause resorption of the anterior residual ridge. Porcelain teeth are harder and can create more stress on the underlying bone compared to acrylic teeth, leading to potential resorption. Therefore, option 2 is the correct answer, as it highlights the negative impact on the anterior ridge.

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