A 15-week-old girl with nodules over the buccal aspect of the left mandibular alveolar ridge.

A 70-year-old woman with a radiolucency at the anterior maxilla.

A 7-year-old with limited mouth opening, generalized marginal gingivitis, and mobility in several teeth.

A 25-month-old boy with a palatal lesion.

A 10-month-old boy with extensive white oral lesions.

A 15-year-old girl with mild to moderate pain over the right side of her face.

A 67-year-old woman with an unusual finding on a panoramic film.

A 44-year-old woman with an ulcer at the right lateral aspect of the tongue.

A 10-year-old girl with a painless gingival lesion.

A 9-year-old boy with bilateral irregular-border ulcers with erythema.

An 11-month-old girl with bilateral swelling in the palate.

A 7-year-old boy with an unusual finding on a panoramic film.

A 6-year-old boy with bilateral enlargement of the face.

A 4-year-old girl with a small lesion at the left maxilla.

An 18-year-old woman with two lesions in the posterior mandible.

A 39-year-old man visited the dentist's office for a recall exam.

A 33-year-old man with a radiolucency at the anterior mandible.

An asymptomatic 9-year-old girl undergoing a recall exam.

A 6-year-old boy with early exfoliation of primary teeth.

A 72-year-old man with a lesion in the posterior left mandible.