MFDS Oral Medicine & Pathology

Question 1

The most common type of odontogenic cyst is the:

Accepted Answer

Radicular cyst

Answer

Radicular cysts (periapical cysts) are the most common odontogenic cysts, arising from proliferation of the epithelial cell rests of Malassez in response to periapical inflammation.

Question 2

Wickham's striae are a characteristic feature of which condition?

Accepted Answer

Oral lichen planus

Answer

Wickham's striae are fine white interlacing lines seen in reticular oral lichen planus and are considered pathognomonic of this condition.

Question 3

Which virus is most strongly associated with the development of oral hairy leukoplakia?

Accepted Answer

EBV

Answer

Oral hairy leukoplakia is caused by Epstein-Barr virus (EBV) replication in epithelial cells, typically occurring in immunocompromised individuals.

Question 4

Nikolsky's sign is positive in which oral condition?

Accepted Answer

Pemphigus vulgaris

Answer

Nikolsky's sign (extension of a blister with lateral pressure on normal-appearing mucosa) is positive in pemphigus vulgaris due to loss of desmosomal adhesion.

Question 5

The most common site for oral squamous cell carcinoma in the UK is the:

Accepted Answer

Floor of mouth and lateral tongue

Answer

The floor of mouth and lateral/ventral tongue represent the highest-risk sites for oral squamous cell carcinoma in the UK population.

MFDS Part 1 Practice Test

MFDS Part 1 Practice Test

MFDS Oral Medicine & Pathology