An endosseous implant for an implantation in a periodontal tissue made of a sintered ceramic material. The first surface of the implant is configured to be implanted in an alveolar bone tissue. The first surface texture has patterns of recessed alveolar cavities with a closed outline whose average width lies between 8 μm and 15 μm and a surface finish lying between 1 μm and 3 μm. The second surface of the implant is configured to be implanted in a cortical bone tissue. The second surface texture has a pattern of recessed alveolar cavities with a closed outline whose width lies between 1.5 μm and 5 μm and a surface finish lying between 0.1 μm and 0.5 μm. The first and second textures replicate surface texture of tissues similar to the implantation alveolar bone tissue and implantation cortical bone tissue, respectively.