MDS PREP
In a complete denture, the position of the mandibular first premolar is
determined by the
1. mental foramen
2. adjacent second premolar
3. termination of the mylohyoid ridge
4. mandibular canine
Prosthodontics
Answer: 4
Explanation: In the arrangement of teeth in a complete denture, the
mandibular first premolar is typically positioned with its mesial aspect in
contact with the lateral aspect of the mandibular canine. This is part of the
denture setup to ensure proper occlusal relationships and aesthetics.
Vomiting during impression making procedures may be prevented by
1. Sedating the patient
2. Injecting local anaesthetic
3. Asking patient to come on empty stomach
4. Change the impression material
Prosthodontics
Answer: 2
Vomiting during impression-making procedures may be prevented by injecting local anaesthetic.
Which dental surveyor is known for its simplicity and durability?
1) Jelenko surveyor
2) Ney surveyor
3) Williams surveyor
4) Highriser RPD surveyor
Prosthodontics
Answer: 2
The Ney surveyor is widely recognized for its simplicity and durability, making it a popular choice among dental professionals.
The following aslo serves in guiding path of insertion and path of removal along with guiding planes
1) Minor connector
2) Occlusal rest
3) Major connector
4) Clasps
Prosthodontics
Answer: 1
While guiding planes are the primary elements that dictate the path of insertion and removal, the minor connector also plays a role. The minor connector helps in the overall stability and retention of the RPD by linking the major connector to the abutment tooth and distributing the forces more evenly across the denture base. However, its primary function is not to guide the path of insertion and removal as much as it is to provide additional support and strength to the RPD.
An acrylic substitute for the loss of soft tissue in soft palate is called
1) Obturator
2) Artificial velum
3) Mould
4) Model
Prosthodontics
Answer: 2
An artificial velum is a prosthetic device used to replace lost soft tissue in the soft palate, which is crucial for functions such as speech and swallowing. It helps in closing the gap between the oral cavity and the nasal cavity, thereby improving the function of the palate.
Fovea palatine are situated in
1. Hard palate
2. Soft palate
3. At the junction of hard and soft palate
4. Their position is not fixed
Prosthodontics
Answer: 2
Fovea palatine are situated in the soft palate.
Which of the following is least likely to occur when record bases are formed
from self-curing resins, on the master
cast of an edentulous patient without blocking out the undercuts ?
1 The borders will not be accurately reproduced
2 Record bases will exhibit instability in the patients mouth
3 The casts may be abraded when removing the record bases
4 Record bases may break when removing from the casts
Prosthodontics
Answer: 1
Explanation: When record bases are formed from self-curing
resins without blocking out undercuts, the most likely issues are instability in
the mouth, abrasion of the casts, and potential breakage of the record bases
upon removal. However, the borders of the record bases are typically
well-defined and can be accurately reproduced even if undercuts are not blocked
out. Therefore, option 1 is the least likely occurrence.
The massetric notch in distobuccal corners of the mandibular denture is due to
1. Action of buccinator on masseter
2. Action of masseter on buccinator
3. Action of palatoglossus on buccinator
4. Action of superior constrictor on masseter
Prosthodontics
Answer: 2
The massetric notch in the distobuccal corners of the mandibular denture is due to the action of masseter on buccinator.