Introduction: Avulsion of permanent teeth is one of the most serious dental injuries, prompt and correct emergency management is essential to achieve the best outcome after this injury. Objective: To analyze the literature on avulsed teeth, particularly its prevalence, storage media, consequences and treatment. Methodology: In order to carry out this literature review, an electronic search was necessary using PubMed and Google Scholar with the words avulsed tooth, and prevalence, storage media, treatment. Results: The prevalence of traumatic dental injuries is greater in male patients of school age. The most common treatment is reimplantation. The main adverse events are dental ankylosis and resorption. When immediate reimplantation is not possible, the most practical means of preservation is cow's milk, currently anti-reabsorption therapy is used to improve the prognosis in addition to the use of a semiflexible stabilizer. Conclusion:The treatment of choice for dental avulsion will always be reimplantation, whether immediate or delayed, regardless of how long the tooth is kept out of the mouth. Although there is no predictable prognosis, it does not mean that reimplantation should not be attempted, since the tooth will be of great importance in contributing to the mandibular and facial development of the child.

Introduction: Periapical surgery has been indicated for the treatment of teeth with periapical lesions when disease persists despite orthograde periapical root canal treatment, a surgical approach may be indicated when periradicular pathosis cannot be resolved with a non-surgical approach. Objective: To analyze the literature on influencing factors on endodontic surgery, particularly surgical considerations, root-end preparation, root-end filling, and treatment success. Methodology: The search for articles was performed by a researcher in the Pubmed database. Keywords used were "endodontic surgery", "apicoectomy", "flaps", "osteotomy", "preparation of the root or apical end", "retrograde obturation" and "treatment success of endodontic surgeries". Results: The surgical considerations, such as that the flaps can be full thickness or divided and a fundamental part is to achieve a good esthetic in the healing. In the osteotomy the important thing is the diameter in which it is performed, the larger the diameter, the more the healing process will be. Then a resection of the root end will be performed, mainly the apical 3 mm and 3 mm intraconducts will be prepared in a retrograde way with ultrasound tips. The obturation will be performed in a retrograde way where the most used materials for this step in the procedure are MTA and Biodentine. The success rate of this treatment is over 80%. Conclusion: Endodontic surgery treatment is a highly complex and complicated procedure. In order to perform this treatment, good planning with CBCT studies should be carried out.