The Straumann® synOcta concept was introduced worldwide in 1999, using the well-known Morse taper design principle developed in 1986. The mechanically locking friction fit of the synOcta® internal connection, with an 8° cone and an octagon for the repositioning of prosthetic parts, shows improved performance over traditional external connections. Abutment loosening, even in screw-retained situations, has virtually been eliminated.

The synOcta® connection is available for all Straumann® Standard, Standard Plus, and Tapered Effect implants with the Regular Neck (RN) and Wide Neck (WN) platform.

Connections for Soft Tissue Level implants with narrow prosthetic platform

The Straumann® Narrow Neck CrossFit® Implant is the latest addition to our Soft Tissue Level implant portfolio and features the CrossFit® connection.


self-guiding connection

The self-guiding internal prosthetic connection has an optimized design for long-term mechanical stability under all loading conditions and ensures an exact fit between implant and abutment. The internal cone of 15° stands for greater flexibility in prosthetic treatments. Four internal grooves ensure the precise positioning of prosthetic components.

Features and benefits

  • CrossFit® makes handling easier and provides confidence for component positioning.
  • CrossFit® ensures precision against rotation.
  • CrossFit® offers restorative flexibility and long-term mechanical stability.1,2,3

Depending on the implant diameter, the Bone Level Implant is equipped either with the Regular CrossFit® (RC), the Narrow CrossFit® (NC), or the Small CrossFit® (SC) connection. The NC connection is also featured in our Straumann® Narrow Neck CrossFit® implant.

1 Data on file
2 Sakaguchi RL, Douglas WH, DeLong R, Pintado MR. The wear of a posterior composite in an artificial mouth: a clinical correlation. Dent Mater 1986;2(6):235-240.
3 Rosentritt M, Behr M, Gebhard R, Handel G. lnfluence of stress simulation parameters on the fracture strength of all-ceramic fixed partial dentures. Dent Mater 2006:22(2):176-182.