Oral Ulcer (FA)

1.       What is the most important component of ulcer?

• floor

• margin

• edge

• base

Answer explanation

a sharply defined, regular edge may suggest a benign ulcer, whereas an irregular, indistinct edge could indicate a malignant or more aggressive ulcer. Therefore, understanding the characteristics of the edge of an ulcer is important in clinical assessment and management. therefore, the correct answer is edge

Undermined edges are seen in

• trophic ulcer

• healing ulcer

• tuberculous ulcer

• squamous cell carcinoma

Answer explanation

The correct answer is Tuberculous ulcer," undermined edges can indeed be a characteristic feature seen in tuberculous ulcers.

Tuberculous ulcers can exhibit undermined edges due to the chronic, destructive nature of the disease process caused by Mycobacterium tuberculosis. These ulcers often have undermined, ragged edges that are a result of tissue destruction and necrosis.

A 35-year-old male presented to the dental OPD with a complaint of an ulcer on the right buccal mucosa. Upon inquiry, he mentioned that he applied aspirin due to toothache. What type of ulcer is most likely present in this case?

• chemical

• thermal

• electric

• mechanical

Answer explanation

The correct answer in Chemical Ulcer. Chemical ulcers are caused by exposure to chemical agents that irritate or burn the mucosal lining. Aspirin, especially when applied directly to the mucosa, can lead to chemical irritation and ulceration.

     How can Recurrent Aphthous Stomatitis (RAS) be distinguished from other diseases with similar-appearing oral lesions?

• By the presence of oral bacteria causing the lesions

• By the lesions being limited to a single occurrence

•   By the absence of systemic symptoms accompanying the oral lesions

• By the lesions' tendency to recur, their multiplicity, and chronicity

Answer explanation

RAS is characterized by recurrent episodes of painful oral ulcers (aphthae) that can appear as single or multiple lesions. These ulcers tend to recur over time, with periods of remission and exacerbation. The chronic nature and tendency to recur distinguish RAS from other conditions that may cause oral lesions. The correct answer is : by the lesions tendency to recur, their multiplicity, and chronicity

  Which characteristics are typical of Major Aphthous Ulcers (MAU)?

• They are smaller than 10 mm in diameter and painless.

• They heal within a week and do not leave a scar

• Posterior oral tissue involvement is characteristic and diagnostic of Major Aphthous Ulcers

• They occur predominantly on keratinized oral surfaces

Answer explanation

Major Aphthous Ulcers (MAU) typically involve larger lesions, often greater than 10 mm in diameter, and they are more likely to occur on non-keratinized mucosal surfaces such as the posterior oral mucosa (soft palate, tonsillar areas, etc.). These ulcers are painful and can be quite debilitating.

Therefore, the correct answer is:

Posterior oral tissue involvement is characteristic and diagnostic of Major Aphthous Ulcers.