MDS PREP
The modiolus exerts its influence at canine and premolar region of complete dentures. Modiolus is formed by all of the following muscles except
1. Triangularis
2. Buccinator
3. Masseter
4. Orbicularis oris
Prosthodontics
Answer: 3
The modiolus exerts its influence at the canine and premolar region of complete dentures. Modiolus is formed by all of the following muscles except masseter.
The average biting forces generated the natural dentition and complete
dentures are respectively
1. 200N and 600N
2. 9000 N and 7000 N
3.100N and 30N
4. 600N and 110N
Prosthodontics
Answer: 4
Explanation: Natural dentition can typically withstand average biting forces of
around 600N, which is significantly higher than the 110N that complete dentures
can generally handle. Complete dentures rely on muscular and bony support and
are limited by the resiliency of the soft tissues in the oral cavity.
Which of the following is most likely to occur if attachment epithelium is removed during curettage
1. Deepening of pockets
2. Decrease in pocket depth
3. Resorption of alveolar bone
4. Deposition of alveolar bone
Prosthodontics
Answer: 2
Which of the following is most likely to occur if attachment epithelium is removed during curettage: deepening of pockets.
Broad palatel seal indicates
1. Type A palatal form
2. Type B palatal form
3. Type C palatal form
4. None of the above
Prosthodontics
Answer: 1
Broad palatal seal indicates type A palatal form.
The coronoid process
1. Limits the extension of maxillary posterior teeth setting
2. Limits the thickness of the distobuccal flange of the upper complete denture
3. Limits the thickness of the ditobuccal flange of the lower complete denture
4. Determines PPS
Prosthodontics
Answer: 2
The coronoid process limits the thickness of the distobuccal flange of the upper complete denture.
Benett movement is
1) Direct lateral side shift of the mandible that occurs simultaneously with lateral mandibular excursion
2) Direct medial side shift with medial mandibular excursion
3) Direct lateral side shift with medial mandibular excursion
4) None of the above
Prosthodontics
Answer: 1
The Bennet movement is a type of movement that occurs in the temporomandibular joint (TMJ) during the lateral excursion of the mandible, particularly when the mouth is open. It involves the sliding of the articular disk in a lateral direction within the joint space, which allows for the condyle to move smoothly along the articular eminence of the temporal bone. This movement is essential for the normal functioning of the TMJ during activities like chewing and speaking. It is the first type of movement to occur during lateral excursion and is crucial for maintaining the proper alignment of the TMJ components during side-to-side jaw motion.
Before registering face bow transfer, it is necessary to determine
1. Physiological rest space
2. Incisal guidance
3. Centric relation and centric occlusion
4. Terminal hinge axis opening
Prosthodontics
Answer: 4
Before registering face bow transfer, it is necessary to determine terminal hinge axis opening.
Lateral throat form occupied by retromylohoid flange in lower denture
1. Has nothing to do with the denture
2. Should be large, one-half inch
3. Should be small, less than half inch
4. Should be larger, more than 2 inches
Prosthodontics
Answer: 2
Lateral throat form occupied by retromylohyoid flange in lower denture should be large, one-half inch.