ORE Part 2 Prosthodontics 2

Question 1

A patient presents with a worn complete denture showing reduced OVD. What is the consequence of significantly increasing the OVD during denture replacement?

Accepted Answer

Muscle fatigue, discomfort, and difficulty with the freeway space

Answer

Improved speech immediately

Answer

No clinical effect

Answer

Automatic improvement in facial aesthetics

Question 2

Which impression technique is most appropriate for recording a flabby anterior ridge for a complete upper denture?

Accepted Answer

Altered cast technique (selective pressure/mucostatic impression of flabby tissue with functional impression of the firm ridge)

Answer

Conventional mucocompressive alginate impression

Answer

Zinc oxide eugenol wash impression at full bite pressure

Answer

No impression needed; duplicate the existing denture

Question 3

What is the most common cause of denture stomatitis (Newton's classification)?

Accepted Answer

Candida albicans colonisation on the fitting surface

Answer

Allergy to acrylic monomer

Answer

Trauma from ill-fitting denture

Answer

Vitamin B12 deficiency

Question 4

When designing an RPD, what is the function of a reciprocal arm (reciprocating element)?

Accepted Answer

To counteract the displacing force of the retentive clasp during insertion and removal

Answer

To provide additional retention

Answer

To improve the aesthetics of the denture

Answer

To support the occlusion

Question 5

What is the recommended minimum connector width for a chrome cobalt palatal strap in an upper RPD?

Accepted Answer

8mm or greater

Answer

4mm

Answer

6mm

Answer

12mm

Question 6

A patient with a Kennedy Class III modification 1 partial denture (bounded saddle with additional saddle) complains that the denture feels loose. What is the most likely cause?

Accepted Answer

Inadequate retention from clasp arms not engaging the undercut

Answer

The saddles are too long

Answer

The occlusion is set in crossbite

Answer

The major connector is too wide