MDS PREP
Oral examination of an edentulous patient should include digital palpation. Why?
1. The arch form is more accurately evaluated
2. Undercut areas may be better evaluated
3. The ridge relationship may be better evaluated
4. None of the above
Prosthodontics
Answer: 2
Oral examination of an edentulous patient should include digital palpation to evaluate undercut areas better.
The effect of saliva on the denture prognosis
1. No effect
2. Affects denture retention
3. Tissue conditioners are indicated when there is reduction in salivary flow
4. None of the above
Prosthodontics
Answer: 2
The effect of saliva on denture prognosis affects denture retention.
The closest speaking space was suggested by
1. Pound
2. McGrane
3. Niswonger
4. Silverman
Prosthodontics
Answer: 2
The closest speaking space was suggested by McGrane.
Porosity occuring in the bulky portions of the heat-cured acrylic complete dentures is due to
1) Insufficient pressure application during packing
2) Time lag between packing and curing
3) Directly placing the packed resin in water at 100 degree
4) Using a fluid pour technique
Prosthodontics
Answer: 3
Porosity in heat-cured acrylic dentures can occur due to several factors, but the most significant cause in this context is the direct placement of the packed resin in water at high temperatures (100 degrees Celsius). When the packed resin is subjected to such conditions, it can lead to rapid polymerization and the formation of bubbles or voids within the material, resulting in porosity. This is because the heat causes the monomer to vaporize, and if the vapor cannot escape, it leads to trapped air pockets.
Which are you NOT looking for when exploring the apical third of a canal?
1) Hypercementosis
2) Branches
3) Lateral canal openings
4) Internal root resorbtion
Prosthodontics
Answer: 1
Which are you NOT looking for when exploring the apical third of a canal: hypercementosis.
Patient education of complete dentures should start
1. At impression stage and end after processing of dentures
2. At time of initial appointment and continue throughout the treatment
3. At the time of denture delivery and subsequent appointments
4. None of the above
Prosthodontics
Answer: 2
Patient education of complete dentures should start at the time of the initial appointment and continue throughout the treatment.
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
The retromylohyoid area is an important anatomical region in the lower denture that contributes to the retention and stability of the denture. The lateral throat form, which is the space between the retromylohyoid flange and the surrounding tissues, should be adequately large (approximately one-half inch) to allow for proper function and comfort of the denture. A well-formed lateral throat area helps in achieving a good seal and prevents food impaction.
When determining the posterior limit of the maxillary denture, which of the following in on the posterior border
1. Hamular notch
2. Fovea palatine
3. Vibrating line
4. Hamular process
Prosthodontics
Answer: 1
When determining the posterior limit of the maxillary denture, the hamular notch is on the posterior border.