ADC ADC - Australian Dental Council Dental Anatomy and Occlusion Questions and Answers 3

Question 1

Which permanent tooth has the longest root?

Accepted Answer

Maxillary canine

Answer

The maxillary canine has the longest root of all permanent teeth, contributing to its stability and longevity.

Question 2

The Curve of Wilson refers to:

Accepted Answer

The mediolateral curvature passing through the buccal and lingual cusp tips of opposing molars

Answer

The Curve of Wilson is the mediolateral (transverse) curvature that passes through the buccal and lingual cusp tips of opposing molar teeth.

Question 3

In a Class I occlusion, the mesiobuccal cusp of the maxillary first molar occludes:

Accepted Answer

In the buccal groove of the mandibular first molar

Answer

In Angle's Class I occlusion, the mesiobuccal cusp of the upper first molar occludes in the buccal groove of the lower first molar.

Question 4

Which cusp of the maxillary first molar is known as the 'cusp of Carabelli'?

Accepted Answer

Mesiolingual cusp — an additional tubercle on its lingual surface

Answer

The cusp of Carabelli is a supplemental cusp or tubercle found on the mesiolingual cusp of the maxillary first molar.

Question 5

The freeway space (interocclusal rest space) is typically:

Accepted Answer

2–4 mm

Answer

The freeway space, the distance between the teeth at rest position and at maximum intercuspation, is typically 2–4 mm.

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