MDS PREP
On examination of a patient, in maxillary arch, posterior teeth and lateral incisors on both sides are missing. Canines are present and healthy. You would like to
1. Extract the remaining central incisors and go for an overdenture on canines
2. Fixed bridge for missing laterals and RPD for missing posteriors
3. Cantilever bridge for posteriors and RPD for laterals
4. All of the above
On examination of a patient, in the maxillary arch, posterior teeth and lateral incisors on both sides are missing. Canines are present and healthy. You would like to extract the remaining central incisors and go for an overdenture on canines.
The design of a removable partial denture (RPD) should be finalized before:
1) Any emergency dental treatment.
2) Any fixed prosthodontic procedures and the preparation of rest seats.
3) Extraction of third molars.
4) Extraction of a crown or bridge.
Prosthodontics Answer: 2
Explanation: Finalizing the RPD design before fixed
prosthodontic treatment ensures that the RPD can be properly integrated with
any existing or planned restorations, allowing for optimal function and
aesthetics.
In anterior teeth "rests" are ideally prepared and located on
1) Incisal edges
2) Lingual surfaces
3) Mesial surfaces
4) Distal surfaces
Prosthodontics
Answer: 2
In anterior teeth, "rests" are ideally prepared and located on the lingual surfaces. This is because the lingual surfaces provide better support for the denture and distribute the occlusal forces more evenly across the palatal mucosa, reducing the risk of denture movement and discomfort.
If VOD is increased, all will happen except
1. Perleche
2. Improper aesthetics
3. Trauma to TMJ
4. Trauma to muscles
Prosthodontics
Answer: 1
If VOD is increased, all will happen except perleche.
The best criterion for teeth selection is
1. Past photographs
2. Pre extraction records
3. Study models
4. None of the above
Prosthodontics
Answer: 2
Pre-extraction records provide the most accurate information regarding the size, shape, and position of the teeth before extraction, making them the best criterion for selecting replacement teeth in prosthodontics.
Physiological rest position is related to
1. Centric relation
2. Centric occlusion
3. Vertical dimension
4. Lateral shift of the jaws
Prosthodontics
Answer: 1
Physiological rest position is related to centric relation.
Effective alternation in the abutment with short clinical crowns for proper clasp retention can be achieved by
1) Proper guiding planes
2) Restoring with full crown
3) Altering the height of contour
4) All of the above
Prosthodontics
Answer: 2
When dealing with short clinical crowns in RPD abutment teeth, restoring the teeth with full crowns can provide additional retentive surfaces and support for the clasp. This can be particularly useful when the available undercuts are limited, thereby enhancing the overall stability and retention of the prosthesis.
Custom tray is better than stock tray for impression (of crown) due to following reasons except
1. Custom tray is eary to adapt
2. Stock tray may not record full flange
3. Custom tray is cheaper
4. Stock tray can distort easily
Prosthodontics
Answer: 3
Custom tray is better than stock tray for impression (of crown) due to the reason that stock tray may not record full flange.