Prosthodontics Shorts - NEET MDS Dental PG Prep

#1 Prosthodontics

Freeway space is defined as vertical dimension at rest - vertical dimension at occlusion.

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Answer

Freeway space is defined as
1. Vertical dimension at rest - vertical dimension at occlusion
2. Vertical dimension of occlusion + vertical dimension at rest
3. Vertical dimension at rest
4. Vertical dimension at occlusion - vertical dimension at rest

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#2 Prosthodontics

Retromolar area should be covered in CD or distal extension RPD in order to derive support from the underlying bone which is resistant to resorption.

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Retromolar area should be covered in CD or distal extension RPD in order to
1. Provide the better marginal seal
2. To slow down the rate of resorption of alveolar bone in posterior area
3. Derive support from the underlying bone which is resistant to resorption
4. All of the above

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#3 Prosthodontics

Non-rigid or semi-rigid connectors are used in dental bridges when there is a need to accommodate non-parallel abutments (option 2). This design allows for some movement between the components of the bridge, which can help in achieving a better fit and function when the abutments are not parallel.

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Answer

A non-rigid or semi-rigid connector is indicated in some posterior bridges
1) When span of the bridge is long
2) When draw of the retainers cannot be achieved due to non-parallelism of the abutments
3) When the abutment teeth are parallel in short span of bridge
4) None of the above

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#4 Prosthodontics

Recontouring and selective grinding are procedures used to adjust the fit and function of complete dentures. These adjustments are often performed to eliminate any interference with the patient's normal masticatory (chewing) function or to correct any imbalances in the bite. By removing excess material and reshaping the occlusal surfaces, the dentist can address issues such as malocclusion or improper contact between teeth, thereby restoring a harmonious occlusion.

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Answer

Recontouring and selective grinding procedures are carried out in complete denture to
1) Decrease the vertical dimension of occlusion
2) Decrease cuspal height
3) Enhance curve of Spee
4) Remove occlusal disharmony

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#5 Prosthodontics

Which of the following is an example of a static method of recording centric relation: intraoral records.

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Answer

Which of the following is an example of static method of recording centric relation?
1. Intraoral records
2. Needle
3. House
4. Paterson

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#6 Prosthodontics

Explanation: The sagittal inclination of the incisal guidance table is set to match the patient's natural incisor relationship. By bringing the central incisors into an end-to-end relationship, the articulator can be adjusted to simulate the patient's individual incisal guidance, which is essential for accurate jaw movement and occlusion.

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Answer

For a semi adjustable articulator, the sagittal inclination of the incisal guidance table is determined by
1. bringing the mandible approximately 6mm forward
2. bringing the cuspids into an end to end relationship
3. altering the vertical dimension till the incisal guide pin contacts the guide table
4. bringing the central incisors into an end to end relationship

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#7 Prosthodontics

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.

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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

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#8 Prosthodontics

The hinge axis face bow specifically records the kinematic hinge axis of the mandible and the three-dimensional position of the maxilla in relation to this axis. This information is crucial for accurately mounting the casts on an articulator, which simulates jaw movements.

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Answer

Hinge axis face bow records
1) Opening and closing axis of the mandible
2) Relationship of the mandible to the maxilla
3) Vertical dimension of occlusion
4) Centric relation of occlusion

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#9 Prosthodontics

It establishes:

Relationship of teeth to the axis of rotation of the jaw → Ensures accurate occlusion simulation.

Relationship of maxilla to mandible → Helps in reproducing inter-arch relationships.

Relationship of mandible to cranium → Transfers the anatomical position of the jaws relative to the skull.

Thus, hinge axis face-bow records capture all of the above relationships to allow precise articulation and prosthodontic work.

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Answer

Hinge axis face-bow records
1) Relationship of teeth to the axis of rotation of the jaw
2) Relationship of maxilla to mandible
3) Relationship of mandible to cranium
4) All of the above

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