## 1 Introduction
This device aids in monitoring the long-term stability of the implant, allowing for the differentiation between clinical success and potential implant failure. Furthermore, this analysis can provide valuable insights regarding the selection of appropriate loading protocols [12]. Over the years, various surgical techniques have been developed to enhance primary implant stability, particularly in areas with low bone density. Among these techniques, bone densification of the implant site has demonstrated notable benefits in achieving improved primary implant stability. This is particularly relevant in edentulous areas characterized by low bone density, where bone densification techniques can significantly contribute to enhancing the stability of the implants [13; 14]. The under-preparation of the implant site to increase primary stability is widely used today. In this technique, the final drilling step involves using a drill with a reduced diameter compared with the size of the implant [15]. In areas with poor bone quality, the under-preparation of the site, up to 10%, is enough to increase primary stability. However, reducing the diameter further does not result in higher primary stability values. Instead, it can introduce excessive stress along the osteotomy, potentially causing microcracks that impede the natural healing and osseointegration processes. Therefore, it is important to strike a balance between under-preparation and avoiding excessive reduction in diameter to ensure optimal implant stability and support proper healing [16; 17]. In the 1990s, [PERSON] introduced the concept of osteecondensation, which involved the use of manual osteotomes activated by a dedicated hammer [18]. In 2014, [PERSON] and colleagues developed a novel line of drills with distinctive geometries that not only create implant sites, but also densify the bone in the dedentulous area. These drills, known as osteecondensation drills, are conical in shape and come in different diameters to accommodate varying rehabilitation needs. They are designed with cutting planes featuring negative angles, which compact the bone during rotation, and a chisel tip that facilitates the drill's penetration into the bone. Interestingly, these osteecondensation drills can also function in the opposite manner. By reversing the process, the same drills can cut bone using their cutting planes and remove local bone tissue, thereby creating an implant site through a conventional osteo-subtractive mechanism [2; 16]. Osteocondensation drills have demonstrated their ability to enhance bone quality by preserving local bone tissue, facilitating elastic expansion of the bone, and promoting autologous grafting of the particulate matter generated during the osteotomy phase. This particulate matter is compacted along the periphery and apical portion of the implant site [19]. The biomechanical efficiency of osseed densification drills lies in their ability to leverage the inherent elasticity and plasticity of the bone. By applying appropriate stress or force, these drills induce plastic deformation that compacts the bone particulate within the trabecular space instead of removing it. Furthermore, osteecondensation technique exhibits a detectable response at the bone-implant interface due to the reverse compression exerted by the bone on the elastic rebound resulting from residual elastic deformation during osteotomy. This reverse compression helps to prevent excessive stress. Simultaneously, the irrigation of the site with saline serves a functional purpose by generating continuous hydrodynamic pressure that facilitates the compaction of bone chips. The process of bone compaction and autografting achieved through osteecondensation cutters enables the implant to be placed in an area of the bone matrix characterized by increased density and enhanced mechanical stability [20].