Objective: Review of the literature on the conditions for the placement of posterior implants of the stock, according to their condition in the morphology of the tooth, the morphology of the alveolus, as well as the importance of the geomancy of the implant and the volume in the tissue. Materials and Methods: A search was made in PubMed including original articles, pilot studies, case reports and literature review, where a search was made in articles about literature on the conditions for the placement of posterior immediate implants, according to their condition in the morphology of the tooth, morphology of the alveolus, as well as the importance of the geometry of the implant and the volume in the tissue. The search included the words “Post-extraction implants”, “posterior implants” and “primaty stability”.

Results: The conditions for the placement of posterior post extraction implants to obtain primary stability are the root morphology: knowing the correct position of the roots. Alveolar morphology: since we depend on the interradicular septum for a good anchorage. Importance of implant geometry: consider the area of attachment between the surface of the implant biomaterial and the surrounding bone; an interface. And finally the volume of tissue: thanks to the presence of healthy tissue adhered to the soft tissue interface in implants will achieve u long-term success gives stability both in function and aesthetics.

Conclusion: After dental extraction is a safe option, even when implants are loaded immediately or late. Following the general conditions for its placement in multi-root teeth we can ensure a good anchorage and success in such treatment both surgical and aesthetic.