Incipient caries lesion or non-cavitated caries lesion or white spot lesion (WSL)or Smooth Surface caries or Early enamel caries is the first evidence of caries activity in enamel and appear as chalky white opaque areas on enamel when air-dried and seems to disappear when the tooth is rehydrated or made wet. Incipient Caries is the caries disease process, its clinical stages, distribution and determinants in order to bring about identification of early caries before evidence of surface cavitation with the help of various detection techniques & also to get acquainted with advanced management methods for arresting or reversing the non-cavitated lesions. However, more comparative in-vitro and in-vivo trials in this context should be conducted with longer follow up periods in order to arrive at a definitive conclusion.