ADC ADC - Australian Dental Council Dental Anatomy and Occlusion Questions and Answers 2

Question 1

Which root of the mandibular first molar is typically broader buccolingually?

Accepted Answer

Mesial root

Answer

The mesial root of the mandibular first molar is broader buccolingually and commonly has two root canals.

Question 2

The working side condyle during lateral mandibular movement is called:

Accepted Answer

Rotating condyle

Answer

The working side condyle rotates in place during lateral excursion and is sometimes called the rotating or ipsilateral condyle.

Question 3

How many root canals does the maxillary first premolar most commonly have?

Accepted Answer

2

Answer

The maxillary first premolar most commonly has 2 root canals, one buccal and one palatal.

Question 4

The canine guidance (cuspid protected occlusion) means:

Accepted Answer

The canines bear all lateral occlusal forces and disengage posterior teeth

Answer

In canine guidance, the canines bear lateral occlusal forces and cause disclusion of all posterior teeth during lateral excursions.

Question 5

Which developmental groove on the mandibular first molar separates the mesiobuccal and distobuccal cusps?

Accepted Answer

Buccal groove

Answer

The buccal groove of the mandibular first molar separates the mesiobuccal and distobuccal cusps on the buccal surface.

ADC - Australian Dental Council Practice Test