In the event of the loss of an implant and to take advantage of the preexisting structures, a rescue procedure that allows continuous use of the original fixed restoration during the restoration of the tripod support at the implant level can be used. When nonphysiological occlusion forces are avoided, the success rate of this rescue procedure is very similar to any other rehabilitation made following a conventional protocol. Furthermore, the fact that the patient has already adapted to the prosthesis position and its vertical dimension results in easier functional adaptation in the postoperative period and, consequently, greater comfort.242168171Rosenberg, E.S., Cho, S.C., Elian, N., A comparison of characteristics of implant failure and survival in periodontally compromised and periodontally healthy patients: a clinical report (2004) Int J Oral Maxillofac Implants, 19, pp. 873-879Perry, J., Lenchewski, E., Clinical performance and 5-year retrospective evaluation of Frialit-2 implants (2004) Int J Oral Maxillofac Implants, 19, pp. 887-891Lang, N.P., Pun, L., Lau, K.Y., A systematic review on survival and success rates of implants placed immediately into fresh extraction sockets after at least 1 year (2012) Clin Oral Implants Res, 23, pp. 39-66Romanos, G., Froum, S., Hery, C., Survival rate of immediately vs delayed loaded implants: analysis of the current literature (2010) J Oral Implantol, 36, pp. 315-324Dantas, T.S., Naves, L.Z., Prado, C.J., Retrieval technique for the Branemark Novum protocol: replacement of a lost implant (2012) Int J Oral Maxillofac Implants, 27, pp. e86-e89Testori, T., Zuffetti, F., Capelli, M., Immediate versus conventional loading of post-extraction implants in the edentulous jaws (2013) Clin Implant Dent Relat Res, , Mar 18. [Epub ahead of print]Machtei, E.E., Mahler, D., Oettinger-Barak, O., Dental implants placed in previously failed sites: survival rate and factors affecting the outcome (2008) Clin Oral Implants Res, 19, pp. 259-264Grossmann, Y., Levin, L., Success and survival of single dental implants placed in sites of previously failed implants (2007) J Periodontol, 78, pp. 1670-1674Alsaadi, G., Quirynen, M., van Steenberghe, D., The importance of implant surface characteristics in the replacement of failed implants (2006) Int J Oral Maxillofac Implants, 21, pp. 270-274Kim, Y.K., Park, J.Y., Kim, S.G., Prognosis of the implants replaced after removal of failed dental implants (2010) Oral Surg Oral Med Oral Pathol Oral Radiol Endod, 110, pp. 281-286Margossian, P., Mariani, P., Stephan, G., Immediate loading of mandibular dental implants in partially edentulous patients: a prospective randomized comparative study (2012) Int J Periodontics Restorative Dent, 32, pp. e51-e58Castellon, P., Block, M.S., Smith, M.B., Immediate loading of the edentulous mandible: delivery of the final restoration or a provisional restoration: which method to use? (2004) J Oral Maxillofac Surg, 62, pp. 30-40Albrektsson, T., Zarb, G., Worthington, P., The long-term efficacy of currently used dental implants: a review and proposed criteria of success (1986) Int J Oral Maxillofac Implants, 1, pp. 11-25Simamoto Jr, P.C., Davi, L.R., Gomes, V.L., Immediate function in the edentulous mandible: replacement of a lost implant using prefabricated guides (2006) J Prosthet Dent, 95, pp. 161-164Hatano, N., Yamaguchi, M., Yaita, T., New approach for immediate prosthetic rehabilitation of the edentulous mandible with three implants: a retrospective study (2011) Clin Oral Implants Res, 22, pp. 1265-1269Anavi, Y., Allon, D.M., Avishai, G., Complications of maxillary sinus augmentations in a selective series of patients (2008) Oral Surg Oral Med Oral Pathol Oral Radiol Endod, 106, pp. 34-38