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Abstract : Dental implants are commonly used treatment options for prosthetic rehabilitation of missing teeth, but slow bone healing around implants may lead to early primary and secondary implant failure. The unique properties of nanoparticles chitosan, a natural bioactive material, can be used as a coating for implant fixation and integration at the bone-biomaterial interface. This study aims to highlight nanoparticles chitosan and its performance as an adjuvant in post-implant bone healing. The study sample included 20 implants from 4 patients (2 males and 2 females). Radiographic bone density was measured around the implants on the upper and lower jaws, and the sample was divided into two equal groups. The first had nanometric chitosan applied, and the second did not. A CBCT radiograph was performed 3 months after dental implantation in order to study the radiographic bone density in the two areas. The results showed that there were statistically significant differences in the density around the implant with and without nanometric chitosan in favor of chitosan.