Traumatology is the second most common dental pathology, after caries and before periodontal pathologies. It is currently accepted that one child in two suffers an alveolar-dental trauma before leaving school, with a peak incidence between the ages of 8 and 12, all types of trauma combined. The maxillary central incisors are most affected (79.6%), with mainly "simple" or "complex" coronal fractures when the pulp is involved. The main objective in managing these complex fractures is to preserve pulpal vitality within an acceptable timeframe. The author presents three pulp vitality preservation therapies involving tissue preservation and regeneration techniques using bioactive materials applied directly to the pulp. Materials and clinical protocols are described. Knowledge of pulp biology and healing processes has led to the development of vitality-preserving therapeutic strategies that have become essential in the management of traumatized teeth in children and adolescents. The regenerative potential of immature tooth pulp is considerable, enabling dentine repair through the use of bioactive materials. These therapies require a rigorous surgical approach that determines prognosis, and precise monitoring to ensure that any complications are intercepted.