Age estimation in dentistry involves analyzing dental structures to determine an individual's chronological age. It is widely used in forensic science, anthropology, and clinical settings. Methods include evaluating tooth eruption patterns, root development, pulp/tooth ratio, and secondary dentin deposition. Both radiographic and visual assessments play key roles, with techniques varying based on age group such as children, adolescents, or adults. Dental age estimation is considered reliable due to the predictable and sequential nature of tooth development.