This document discusses early childhood caries and nursing caries. It begins with definitions of dental caries and classifications based on anatomic site, severity, progression, and chronology. It then focuses on nursing caries, describing the etiological agents, clinical features, progression, implications, management, and prevention. Nursing caries is distinguished from rampant caries, with nursing caries being a specific form that occurs in infants/toddlers due to improper bottle feeding habits, while rampant caries can occur at any age from multiple factors. The document provides details on diagnosing, treating, and preventing nursing caries.