The use of ultra-short (US) implants is a conservative, and more affordable method for rehabilitation of edentulous zones in severely atrophic jaws. US implants eliminate the necessity of augmentation procedures. With that in mind, a systematic review was established to assess the applications of US implants, and their reliability as an alternative of conventional implants. In this systematic review, an electronic search for English literature was carried out on the 22nd of July 2022 and ended on the 27th of July 2022, in the databases of PubMed, Google scholar, Scopus, and ResearchGate, for studies in which US implants were used. A total of 151 articles were identified by keywords. Ultimately, after applying the inclusion and exclusion criteria, 28 fulltext articles were included and analyzed in our systematic review. Chief question in this article was: When is the use of ultra-short implants more favourable? and how viable are they? Twenty-eight studies comprising 1221 implants were selected for the systematic review. US implants were mainly used in atrophic alveolar ridges, to avoid bone augmentation procedures. US implants showed a survival rate of 97.1% among all authors. US implants showed a mean periimplant bone loss of 0.38 mm over a mean period of 42 months. Placement of US implants in oneor two-stage technique had no influence on any variables. The placement of US dental implants has presented a viable option in the rehabilitation of patients with atrophic alveolar ridge, with the aim of avoiding bone augmentation procedures. However, the long-term effectiveness of US dental implants remains to be further investigated © 2023,Journal of International Dental and Medical Research.All Rights Reserved.