Prosthodontics Exam Questions

Physiologic uses for ill-fitting dentures could be due to:

• Diabetic patients.

• Malignant growth.

• Patients cannot successfully wear dentures.

• All the mentioned.

• None of the above is mentioned.

Tongue and cheek biting that occurs after insertion of complete denture due to:

• Thick or over extended periphery

• Insufficient interarch clearance between distal parts of denture bases.

• lnadequate amount of vertical overlap in molar region.

• Pressure on mental foramen

• Sharp edge at the post dam area

Hypersalivation associated with denture wear could be due to:

• Incorrect registration of the centric jaw relation.

• Excessive vertical dimension of occlusion.

• Pressure on nerves.

• Excessive stimulation of the salivary glands.

• All the mentioned.

The bone resorption in the first year of wear of the teeth and in the following years continues on average····

• 1 mm each year.

• 0.5 mm each year.

• 2 mm each year.

• 2.5 mm each year.

• 1.5 mm each year.

Incisal angle can be determined by all of following, except:

• Aesthetic

• Function.

• Phonetic.

• Interalveolar distance.

• Ridge relationship.

Which statement is correct:

• Acrylic teeth result in vertical dimension being maintained, but it may be worn.

• Acrylic teeth result in loss of vertical dimension, but it wears opposite natural teeth.

• Porcelain teeth result in loss of vertical dimension, but it wears with use.

• Porcelain teeth result in loss vertical dimension, but it wears opposite natural teeth.

• Porcelain teeth result in vertical dimension is maintained, but it wears opposite natural teeth.

Stability in dentures is.......................................

• The ability of a denture to remain in a fixed position during function.

• The characteristic of a denture that prevents it from moving in a horizontal direction.

• Resistance to vertical dislodging forces acting on the denture.

• The quality of a denture to maintain its position against external forces.

• The measure of how well a denture fits and stays in place during use.

V shaped palate...................................

• Has retention and stability

• Has support but no stability

• Provides no retention and no stability

• Relief should be done in the finished denture.

• None of the above.

The squared arch form is the best one for retention because............................

• It has points of contact with denture.

• Its resistant to the vertical forces

• It has two points of contact with denture

• It has four points of contact with denture.

• Its resistant to the shear force

To obtain maximum interfacial surface tension

• Saliva should be thick and ropy

• Perfect adaptation should be present between the tissues and denture.

• The denture base should cover a small area

• The denture should have minimum adhesive and cohesive force to aid in improving interfacial surface tension.

• The dislodging force should be increase