EFDA Anatomy and Occlusion 3

Question 1

Which anatomical landmark on the palate is a reliable reference point that does NOT move with soft tissue changes?

Accepted Answer

Incisive papilla

Answer

The incisive papilla overlies the incisive foramen and is a stable bony landmark used for positioning complete denture teeth.

Question 2

In centric occlusion, the mandibular buccal cusps occlude in which fossae of the maxillary posterior teeth?

Accepted Answer

Central fossae

Answer

The mandibular buccal cusps (centric holding cusps) occlude in the central fossae of the maxillary posterior teeth in ideal centric occlusion.

Question 3

The Frankfort plane is used as a horizontal reference and passes through which landmarks?

Accepted Answer

Porion and orbitale

Answer

The Frankfort horizontal plane passes through the porion (top of external auditory meatus) and orbitale (lowest point of the orbital rim).

Question 4

Which type of occlusal contact during lateral excursion involves only the canines on the working side?

Accepted Answer

Canine guidance

Answer

Canine guidance (canine-protected occlusion) means only the canines contact on the working side during lateral movement, disoccluding all posterior teeth.

Question 5

The alveolar process is unique because it:

Accepted Answer

Forms and resorbs in response to tooth presence

Answer

The alveolar process is tooth-dependent bone that develops with tooth eruption and resorbs following tooth loss.

(EFDA) Expanded Function Dental Auxiliary Practice Test

(EFDA) Expanded Function Dental Auxiliary Practice Test

EFDA Anatomy and Occlusion 3