They are usually called abutments for dental implants. These supports can be made of a variety of materials, such as titanium, surgical stainless steel, and gold. And now the most modern supports are also made of zircon, [3] which is white porcelain, to complement the best aesthetics in dental implants. The two images show the ceramic abutment and the attached ceramic crown. The photos show how a ceramic abutment can enhance a ceramic crown by giving it a more natural look. Ceramic supports should be used with care, as their compressive strength is far from that of titanium, gold or other noble metals. Most clinicians feel more comfortable using prosthetic metal supports in the posterior premolars areas, due to the greater masticatory forces present in these areas.
The abutment is not necessarily parallel to the longitudinal axis of the dental implant. They are used when the implant is at a different angle relative to the intended prosthesis. Most fixed partial dentures and crowns have an abutment attachment.