MDS PREP
FPDs are generally contraindicated and the missing teeth replaced with a RPD,
in patients less than
1. 17 years old
2. 10 years old
3. 30 years old
4. 46 years old
Prosthodontics
Answer: 2
FPDs are generally contraindicated for several reasons:
Growth and Development: Children are still in their
growth phase, and their jaws and teeth are developing. Placing a fixed
prosthesis can interfere with normal growth patterns and may require
adjustments or replacements as the child grows.
Eruption of Permanent Teeth: In younger patients,
especially those under 10, many of the permanent teeth have not yet erupted.
Using FPDs in this age group can complicate future dental treatments, as the
position of the teeth may change with the eruption of permanent teeth.
The anatomic landmarks used to establish the posterior extent of the upper complete denture
1. Petrygomaxillary notch and fovea palatine
2. Pterygopalatine fissure and anterior border of the tuberosity
3. Posterior nasal spine and the palatine bone
4. Posterior nasal spine and the posterior border of the tuberosity
Prosthodontics
Answer: 1
The anatomic landmarks used to establish the posterior extent of the upper complete denture are the pterygomaxillary notch and fovea palatine.
A middle-aged patient gives history of previous upper dentures remade many times as they are becoming tight within one year. You would suspect
1. Osteitis deformans
2. Temperomandibular pain dysfunction syndrome
3. Diabetes mellitus
4. Psychological problems
Prosthodontics
Answer: 1
A middle-aged patient gives a history of previous upper dentures remade many times as they are becoming tight within one year. You would suspect osteitis deformans.
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.
Postdam area serves mainly to
1. Prevent ingress of food and saliva beneath denture base
2. Preventing lifting away of denture during incising
3. Stabilize the denture
4. Both A and B
Prosthodontics
Answer: 4
Postdam area serves mainly to prevent ingress of food and saliva beneath the denture base.
Size of the bur for preparing lingual rest seat for an RPD is
1) 1/10th inch
2) 1/4th inch
3) 1/2 inch
4) 1 inch
Prosthodontics
Answer: 2
Explanation:
The appropriate size of the bur for preparing a lingual rest seat for a removable partial denture (RPD) is typically 1/4th inch. This size allows for the proper shaping and contouring of the rest seat to ensure a secure fit for the prosthesis.
Forces acting on the abutment tooth in an FPD can be effectively minimised by
1) Directing the forces perpendicular to long axis of the crown
2) Directing the forces along the long axis of the crown
3) Both of the above
4) None of the above
Prosthodontics
Answer: 2
Directing forces along the long axis of the crown is an effective way to minimize the stresses on an abutment tooth in a fixed partial denture (FPD). This allows the tooth to function more naturally and reduces the likelihood of complications such as root fracture or periodontal damage
Of the four factors affecting balanced occlusion in complete dentures, which of the following can be altered by only a slight amount because of wide limitations of esthetics and physiologic factors?
1. Condylar inclinations
2. Compensating curve
3. Incisal guidance
4. Cuspal inclinations
Prosthodontics
Answer: 3
Of the four factors affecting balanced occlusion in complete dentures, which of the following can be altered by only a slight amount: incisal guidance.