MDS PREP
Surveyor helps in all of the following except
1) Determination of the clasp placement
2) Determination of the guiding planes
3) Determination of the support to the RPD
4) Determination of placement of the major connector
Prosthodontics
Answer: 3
A surveyor is a device used in the fabrication of removable partial dentures (RPDs) to assess and establish the path of insertion and removal. It is primarily involved in determining the guiding planes and the placement of the major connector and retentive elements like rests and minor connectors. It does not directly assess the support provided by the underlying tissues to the RPD, which is influenced by factors such as the edentulous ridge contour and the type of RPD design.
Proximal surface calculus is removed by
1. Push motion with scales
2. Push motion with chisel
3. Pull motion with file
4. Pull motion with scales
Prosthodontics
Answer: 2
Proximal surface calculus is removed by push motion with chisel.
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.
Vibrating line is on the
1. Hard palate
2. Junction of hard and soft palate
3. Soft palate
4. Junction of muscularis uvulae and palatien muscle
Prosthodontics
Answer: 3
The vibrating line is on the junction of hard and soft palate.
According to the House classification, patients who are positive in their own
minds that they can never wear artificial dentures are classified as having
1 an indifferent mind
2 an exacting mind
3 a philosophical mind
4 a hysterical mind
Prosthodontics
Answer: 4
Explanation: The House classification categorizes patients
based on their attitudes towards dentures. Those with a "hysterical mind" are
often resistant to the idea of wearing dentures, believing they cannot adapt to
them. This classification helps clinicians understand patient psychology and
tailor their approach accordingly.
The muscle which trims the posterior lingual areas of the lower denture is
1. Genioglossus and stylohyoid muscle
2. Palatoglossus and superior constrictor
3. Mentalis and buccinator
4. Medial pterygoid muscle, lateral pterygoid muscle
The muscle which trims the posterior lingual areas of the lower denture is palatoglossus and superior constrictor.
If a complete denture patient has genial tubercle at the level of the crest of mandibular ridge, the denture base
1. Can cover them
2. Should not cover them
3. Should cover them but relief is not necessary
4. Should cover them and relief is must
Prosthodontics
Answer: 4
If a complete denture patient has genial tubercle at the level of the crest of the mandibular ridge, the denture base should cover them and relief is a must.
Articulators are classified into arbitrary positional and functional by
1. Beak
2. Posell
3. Boucher
4. Thomas
Prosthodontics Answer: 3
Articulators are classified into arbitrary positional and functional by Boucher.
Arbitrary positional articulators hold the mandible in a pre-determined, fixed position that does not necessarily represent the patient's true centric relation or functional movements.
Functional articulators, on the other hand, aim to simulate the patient's individual centric relation and dynamic movements of the mandible, allowing for a more accurate representation of the patient's actual occlusion. Boucher's classification system is based on the type of articulation and the way it records and transfers the patient's jaw movements to the dental casts.