Background: The use of endosseous implants is a routine treatment modality for replacing missing teeth. However, the use of dental implants is limited by the presence of adequate bone volume permitting their anchorage. Several bone augmentation techniques have been applied to solve this problem. During the last two decades zygomatic implants have become a proposed alternative to bone augmentation procedures for the severely atrophic maxilla. The main advantages of this kind of rehabilitation could be that bone grafting may not be needed and a fixed prosthesis could be applied sooner. Objective: The purpose of this review is to examine the evidence concerning the management of severely resorbed edentulous maxillae using implants placed in the zygomatic bone. Data collection: The articles reported in this literature review were searched on pubmed/medline database, considering only the English-written scientific journals. Outcomes: A Zygomatic Success Code, describing criteria to score the success of a rehabilitation anchored on zygomatic implants, is represented by the outcomes of these variables: implant stability, associated sinus pathology, peri-implant soft tissues condition and prosthetic results. Excellent results were observed for zygomatic implants. Many studies showed an implant survival rate of 100% combined to similar prosthetic results.The cumulative survival rate (CSR) and patients' satisfaction indicate that zygomatic implants could be an effective alternative for the management of an atrophic maxilla and, in some cases, be the only treatment solution. However, there are no well-defined criteria that help the clinician to evaluate this prosthetic rehabilitation. Conclusions: Thus, further studies are necessary to assess the longterm prognosis of the zygoma implant and whether these implants offer some advantages over other techniques for treating atrophic maxillae.