Bioactive intraosseous dental implant

An intraosseous dental implant, comprising:

• a shaft having a main axis comprising:
• a solid upper part defining an opening at an upper end;
• a solid lower part having an opposing lower end;
• and
• a solid central part located between the solid upper part and the solid lower part along the main axis, the solid central part having a reduced outer diameter relative to an outer diameter of the shaft in the solid upper part and an outer diameter of the shaft in the solid lower part, the solid central part of the shaft comprising:
• a solid upper portion axially adjacent to the solid upper part of the shaft, the solid upper portion having a first outer diameter;
• and
• a solid lower portion axially adjacent to the solid lower part of the shaft, the solid lower portion having a second outer diameter smaller than the first outer diameter;
• a spiral thread having flutes formed in each of the solid upper part, the solid central part, and the solid lower part of the shaft extending parallel to the main axis;
• a porous material positioned in the central part axially between the flutes of the spiral thread of the solid central part, the porous material is integrally formed with the solid central part of the shaft, the porous material extending radially outward from the solid central part of the shaft, the porous material having an open porosity from 0.1% to 90% defining a void space and a pore diameter in a range from 0.3 μm to 1000 μm, wherein a radial height of the spiral thread in the solid lower portion is larger than the radial height of the spiral thread in the solid upper portion providing a greater radial depth of the porous material in the solid lower portion than in the solid upper portion;
• at least two internal channels defined by the shaft configured to allow a supply of a biologically active agent from the opening at the upper end of the solid upper part of the shaft to respective outlets of the at least two internal channels, the at least two internal channels comprising:
• a first internal channel extending from the opening in the solid upper part to the outlet at the opposing lower end of the solid lower part;
• and
• at least one second internal channel in communication with the first internal channel and extending to the outlet in communication with the porous material, the outlet of the at least one second internal channel is positioned radially inward from an outer surface of the porous material thereby preventing the outlet of the at least one second internal channel from being blocked by resident condensed bone surrounding the outer surface of the porous material during installation, the at least one second internal channel configured to allow the supply of the biologically active agent from the first internal channel to the porous material and into the void space, wherein the first internal channel, the at least one second internal channel, and the porous material are configured to allow measurement of ingrown or resorbing bone around the installed implant through measurement of a volume of a fluid needed to fill the first internal channel, the at least one second internal channel and the void space remaining in the porous material.