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NEET MDS Quiz - Practice Test
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Practice Test

Prosthodontics - 3 Questions

1
Prosthodontics
Guiding planes
1) Determine the path of insertion
2) Determine the path of removal
3) Assure predicatable clasp design
4) All of the above

📝 Explanation:

Guiding planes are flat, polished surfaces on the abutment teeth that guide the RPD into place. They are crucial for the predictable placement of retentive elements such as clasps and for ensuring that the forces are transmitted along the long axis of the teeth, minimizing horizontal movements. Additionally, they help in the overall stability and function of the denture.

2
Prosthodontics
Which type of RPD can best resist the forces to which it is subjected 1. Class II 2. Class Ill 3. Class IV 4. Class I

📝 Explanation:

Class III RPDs can best resist the forces to which they are subjected because they are completely tooth-supported with abutment teeth on both sides of each edentulous space. This bilateral tooth support provides excellent resistance to all directional forces, unlike Class I, II, and IV which have tissue-supported components.

3
Prosthodontics
The first step in surveying the casts for RPD is
1) Establishment of guiding planes
2) Establishment of undercuts for retention
3) Establishment of tooth contour for aesthetics
4) None of the above

📝 Explanation:

The initial step in surveying casts for an RPD is the establishment of guiding planes. These planes are essential for determining the path of insertion and removal of the denture, which in turn affects the overall stability and function of the prosthesis. Once the guiding planes are established, other steps such as identifying undercuts for retention and aesthetic considerations can be addressed.

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