NBDHE NBDHE Oral Pathology and Disease Recognition 3

Question 1

Oral squamous cell carcinoma most commonly arises at which intraoral site?

Accepted Answer

Lateral border of tongue and floor of mouth

Answer

The lateral border of the tongue and floor of the mouth are the most common sites for oral squamous cell carcinoma due to pooling of carcinogens.

Question 2

The two most significant risk factors for oral squamous cell carcinoma are:

Accepted Answer

Tobacco use and alcohol consumption

Answer

Tobacco use and alcohol consumption are the primary risk factors for oral squamous cell carcinoma, and their combined effect is synergistic.

Question 3

A periapical abscess typically appears on a radiograph as:

Accepted Answer

A radiolucent area at the root apex

Answer

A periapical abscess appears as a radiolucent area at the tooth root apex because infection causes local bone destruction.

Question 4

Pemphigus vulgaris is an autoimmune condition characterized by a positive Nikolsky sign and:

Accepted Answer

Intraepithelial flaccid bullae that rupture easily

Answer

Pemphigus vulgaris involves IgG autoantibodies against desmoglein proteins, causing intraepithelial acantholysis and flaccid bullae that rupture to form painful erosions.

Question 5

The most recognizable form of oral lichen planus presents as:

Accepted Answer

White interlacing lines (Wickham's striae)

Answer

The reticular form of oral lichen planus is the most common presentation, characterized by white interlacing lines called Wickham's striae on the buccal mucosa.

NBDHE Test Practice Test

NBDHE Test Practice Test

NBDHE NBDHE Oral Pathology and Disease Recognition 3