This book is a practical, user-friendly guide to the clinical diagnosis and treatment of the oral mucosal lesions most frequently encountered in pediatric patients. For each entity, a characteristic clinical photograph is provided, the clinical appearance is concisely described, and guidance is offered on differential diagnosis and treatment options. Oral indications of systemic diseases are addressed in a separate section, and mucosal indicators of drug use, sexual abuse, and eating disorders are also identified.Oral lesions are a relatively common occurrence in the pediatric population.  Fortunately, most of these lesions are transient and can be diagnosed clinically, examples include aphthous ulcers, traumatic ulcers, and lesions of infectious etiology such as viral lesions and candidiasis.  There are also a number of mucosal lesions, such as mucoceles and viral papillomas, that require biopsy for diagnosis and/or surgical excision for treatment. This book will assist the practitioner in diagnosing and treating both transient and persistent mucosal lesions.