Non threaded implants are basically know as implant cylinders. They have less surface area than threaded implants so they require a coating to increase surface area. They are placed by drilling a hole slightly smaller than the diameter of the implant and then tapping in the implant with a mallet.

They are very easy and quick to insert.

Initial stabilization and proprioception are much less than threaded implants.

Not much interest in these implants at the present time (September 2003).