Intentional reimplantation is a therapeutic alternative that is little known and little used in our clinical practices. Although it was introduced some time ago, this technique has undergone a revolution in recent years due to the new protocols presented, which have increased its success rate.  Although there is literature supporting these treatments, there is a lack of information regarding reimplantation. This clinical technique is a surgical endodontic procedure which has many advantages over other clinical techniques. The aim of this lecture is to explain the protocols step by step, explain its indications and contraindications.