The use of dental implants is an increasingly popular therapeutic method of replacing one or more lost masticatory units as well as repairing the entire toothless ridge. The position of dental implant placement is an important factor for the long term success of implant prosthetic therapy. The most significant impact the position of the implant has is on the creation of the biologic width and the resorption of the alveolar bone. The position of dental implants depends on several factors, the most important being the design of the implant and the biological properties of the installation site. The design of the implant significant for the installation site determines the polished neck of the implant and the stability of the microgap. The biological properties which are important during implant installation and which the implant position depends on are the thickness of the soft tissue above the alveolar ridge and the thickness of the bone itself in which the implant is placed. There are two types of implant placement position at the tissue level (transmucosal implant), and at the bone level, at which implants can be placed epicrestally, supracrestally, and subcrestally. If the implant is placed correctly, bone resorption does not occur, and the health of the soft tissues remains stable, ensuring long term therapy. This paper presents two clinical cases. The patients were indicated for tooth extraction and implant prosthetic therapy. All implants were placed subcrestally.