Vol 3 Q1

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1. What is new in the quest for accurate Jaw Registrations

1.1 The Staub Cranial System determines the former tooth position based on Oral Cavity laws.

A) True

B) False

1.2 Resorption of alveolar ridges distort cranial reference points.

A) True

B) False

1.3 Bite registrations are predictable according to 80% of Dentists polled in New York.

A) True

B) False

2. Full mouth rehabilitation of patient with severely worn dentition

2.1 Tooth wear can be classified as:

A) Attrition

B) Abrasion

C) Erosion

D) All of the above

2.2 What does the abbreviation VDO stand for?

A) Visual Distance Observed

B) Vertical Dimension Opening

C) Vertical Dimension of Occlusion

D) Vertical Dimension Obtained

2.3 What technique is now used to obtain inter-occlusal space?

A) Chrome Cobalt Partial denture

B) Adhesive Resin

C) Overlay Splint

D) b&c

2.4 What is the normal Inter-occlusal rest space?

A) 2-4 mm

B) 1-4 mm

C) 5-6 mm

D) 4-6 mm

2.5 In this case study the patient’s new VDO was set to how many mm on the articulator?

A) 2 mm

B) 4 mm

C) 5 mm

D) 3 mm

2.6 The new VDO resulted in an actual increase of how many mm in anterior teeth?

A) 5 mm

B) 3 mm

C) 1-2 mm

D) 4 mm

2.7 The new VDO resulted in an actual increase of how many mm in posterior teeth?

A) 5 mm

B) 3 mm

C) 1-2 mm

D) 4 mm

2.8 For how many months were the interim restorations adjusted?

A) 1 month

B) 4 months

C) 3 months

D) 2 months

2.9 Why could composite resin restorations not be used for this patient?

A) Remaining tooth structures were too small

B) Insufficient retention for composite restorations

C) Excessive bruxing by patient

D) a&b

2.10 The restored anterior teeth can be exposed to occlusal loads if?

A) Patient presents with excessive bruxing

B) Patient does not wear removable partial dentures

C) There’s resorption of residual ridge

D) b&c

3. A study on the fracture strength of collarless metal-ceramic fixed partial dentures

3.1 Currently the most popular type of crown for the anterior area is:

A) Zirconium

B) VMK

C) Emax

D) Cerec

3.2 The biggest disadvantage of a porcelain-fused-to-metal crown is that it is:

A) Not a completely accurate fit

B) Expensive

C) Time consuming

D) Grey gingival margin

3.3 There is sufficient fracture strength to endure the human maxilla biting force.

A) True

B) False

3.4 What design is the best according to this study?

A) Coping with a thin facial metal collar

B) Collarless coping with facial metal up to the shoulder

C) Collarless coping with facial metal 1mm short of the shoulder

D) Collarless coping with facial metal 2mm short of the shoulder

3.5 Failure load decrease with the increase of metal support.

A) True

B) False

3.6 Direction of load equals fracture direction.

A) True

B) False

3.7 Incising forces of anterior teeth are biggest in:

A) Women

B) Men

C) Children

D) All of the above

3.8 How many bakes are needed for a good porcelain shoulder fit?

A) 2

B) 4

C) 6

D) 8

3.9 Fracture strength of all ceramic crowns may decrease as the cement thickness increase:

A) True

B) False

3.10 Collarless porcelain-fused-to-metal crowns have higher fracture strength than maxilla incisive biting forces:

A) True

B) False

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