Endodontic treatment of teeth with incomplete root formation is a challenge. One of the treatment alternatives is the regenerative endodontic treatment, the formation of a blood clot inside the root canal occurs, which will work as a scaffold with the aim of enabling cell growth. Uses the concept of tissue engineering to restore root canals to a healthy state, allowing for continued development of the root and surrounding tissues. Several protocols have been proposed, without a consensus among authors. The objective of this scope review is to show the general panorama of the use of photodynamic therapies in regenerative endodontic treatment