An 8-year-old boy presented at the pediatric dentist to evaluate a “mass” on the floor of his mouth. The boy was asymptomatic.

A 59-year-old woman was referred to the oral surgeon by her dentist because of a “lesion” at the anterior left mandible.

A 20-month-old boy presented at the emergency room with his parents because of very painful lesions over his gums, lips, and fingers that had been present for the past three days.

A 40-year-old man was referred to the oral surgeon by his dentist because of an unusual finding in the anterior maxilla in a panoramic film.

A 51-year-old man was referred to the oral surgeon by his family dentist because of an unusual radiolucency involving the left mandible. The patient was asymptomatic.

A 5-year-old girl presented to the dentist with her parents. The parents reported the girl had experienced excruciating pain in the back of her mouth for the past 48 hours. There was no history of trauma.

An 11-year-old boy was referred to the oral surgeon by his family dentist because of a lesion that was noted on a panoramic film at the anterior right mandible.

A 3-year-old boy presented at the pediatric dentist with gingival retraction and tooth mobility.

A 5-year-old boy visited the family dentist with his parents because of multiple painless lesions in his mouth.

A 25-year-old man presented at the dentist’s office for a recall exam. His last dental exam was five years ago. The dentist noted a missing tooth during an intraoral exam.

A 9-year-old boy was referred to the oral surgeon by his pediatric dentist because of a small red lesion on the ventral aspect of the tongue. The patient was asymptomatic.

A healthy 6-month-old boy was brought to the pediatric dentist by his parents because of “something unusual in his palate.” His parents reported that he had not been eating and drinking normally for the last few days.

A 15-year-old boy presented to the oral surgeon, referred by his family dentist, because of a radiolucent lesion noted on a panoramic film situated at the anterior right mandible. The patient was asymptomatic.

A 5-year-old boy visited the family dentist for a new patient exam. The patient was born at 39 weeks. The boy’s mother told the dentist that tooth #M exfoliated one month earlier.

A 12-year-old girl presented to the oral surgeon, referred by her dentist, because of multiple areas of “redness” involving the gingiva of her anterior maxilla.

An asymptomatic 16-year-old boy undergoing a routine dental exam.

A 17-year-old girl with generalized mobility of the teeth.

A 7-year-old boy presented to the pediatric dentist for a recall evaluation. The dentist noted an unusual "growth" over the inner aspect of his upper lip.

A 66-year-old woman was referred to the oral surgeon by her dentist because of an unusual finding on a panoramic film. The patient was asymptomatic.

An 18-year-old girl presented to the oral surgeon, referred by her orthodontist, because of a lesion on her left anterior mandible that was noted on a recent panoramic film.