Zimmer’s proprietary friction-fit internal hex connection is a unique combination of designs that has been shown to reduce stress on crestal bone and to resist abutment screw loosening, thus creating favorable conditions for bone level maintenance. 1-3
1. Binon PP. The evolution and evaluation of two interference-fit implant interfaces. Postgraduate Dent. 1996;3:3-13.
2. Chun HJ, Shin HS, Han CH, Lee SH. Influence of Implant Abutment Type on Stress Distribution in Bone Under Various Loading Conditions Using Finite Element Analysis. Int J Oral Maxillofac Implants. 2006;21:105-202.
3. Mihalko WM, May TC, Kay JF, Krause WR. Finite element analysis of interface geometry effects on the crestal bone surrounding a dental implant. Implant Dent. 1992;1:212-217.