[KillerDiller]

Problem with implants is that they cause compressive stress to the bone, which causes bone to deteriorate. Teeth are held by https://en.wikipedia.org/wiki/Sharpey%27s_fibres. This converts the forces acting on the tooth to tensile stress on the bone, which causes it to grow more dense.

[sandworm101]

Implants are only one way of replacing teeth, anchoring replacements to bone. They are not the only method. 3d-printed replacements, with roots, are in development. They would be slotted into the hole left by a pulled tooth.