A 22-year-old reports recurrent painful lesions on the lips that begin as grouped vesicles and crust over within days.

The outbreaks are often triggered by sun exposure or stress.

Which condition is most likely?

Which of the following clinical findings are most helpful in differentiating periodontitis from gingivitis in pediatric patients?

                                                                   (Multiple answer question)

A 3-year-old child presents with interdental papilla loss and punched-out ulcers on the gingiva, with fetid odor and fever. What is the most likely diagnosis?

Which of the following is true about aggressive periodontitis in the primary dentition?

Which of the following statements about recurrent aphthous ulcers (RAU) is true?

A 10-year-old child presents with multiple episodes of painful oral ulcers along with recent weight loss, abdominal pain, and iron deficiency anemia.

The ulcers are round, shallow, and appear on the soft palate and buccal mucosa.

Which underlying systemic condition should be suspected?

Which of the following oral features are characteristic of primary herpes simplex virus infection?

At which stage of gingivitis do clinical signs such as redness, edema, and bleeding on probing become evident?