Fixture
This part is surgically placed inside the bone under the gum, although in some older models, this section is not placed inside the bone. There are some types of implants that are one-piece as the fixture and abutment parts are fused to each other.
Cover screw
This part is used in a two-stage surgery. This piece is placed inside the implant and actually covers the open surface of it and the gum tissue will be placed on the cover screw.
Healing abutment or cuff
Healing abutment is usually placed on the implant through a second surgical step. This part of the implant will be visible after the initial work is completed because it is slightly emerged from the soft tissue. Healing abutments may have different colors that indicate their different sizes.
Impression coping
After the healing abutment or healing cuff is removed, this piece is placed to have an impression or copy of exact shape and location of the implants and adjacent tissues and structures. Impression coping is used in two ways: open tray and closed tray, and it has different sizes.