Question 1

Using the principles of golden proportion, the ideal width of a central incisor should be what percent of its length?

Options :

A : 65% - 69%

B : 70% - 74%

C : 75% - 79%

D : 80% - 84%

Answer: A

Question 2

How can fracture toughness be described?

Options :

A : A measure of material resistance to rapid crack propagation

B : A quantitative analysis of ceramic wear

C : A poor indicator of a material clinical reliability

D : A recent enhancement by the addition of glass to ceramic materials

Answer: A

Question 3

If a ceramic crown repeatedly fractures on the facial incisal of tooth #8. the MOST likely cause is tooth preparation with which of the following?

Options :

A : Rounded incisal edge

B : Minimal chamfer finish line

C : Nearly uniform reduction of 1.5 mm

D : Taper of 8 degrees

Answer: B

Question 4

A patient would like to brighten her smile in addition to restoring her missing tooth #8. however, she is not interested in dental implants. She would also like to close the spaces between her existing teeth. Unfortunately, due to financial concerns she can only restore teeth ##7-10. Reviewing the photograph above, how would you achieve golden proportion?

Options :

A : Fabricating a three-unit bridge and a single veneer on tooth #10 will easily achieve golden proportion

B : In office bleaching along with direct bonding on teeth ##7, 9, and 10, and a Maryland bridge to replace tooth #8 will easily achieve golden proportion

C : Direct resin bonding in conjunction with a removable partial denture will achieve golden proportion

D : It is impossible to achieve golden proportion unless more teeth are restored

Answer: A

Question 5

The 19-year-old female pictured above recently had her braces removed. Her orthodontist referred her to you for restorative care. At your introductory appointment photographs and models were taken. In your initial evaluation of this case, which of the statements is correct?

Options :

A : Diagnostic work-up will show this is a good case for Accreditation

B : A diagnostic wax-up is needed to evaluate the restorability of this case

C : Interdisciplinary communication was likely used in this case

D : An implant and four restorations will restore to esthetic proportions

Answer: D