3 Fischer K., Stenberg T. al ‘Prospective 10-year Cohort Study Based on a Randomized Controlled Trial (RCT) on Implant-Supported Full-Arch Maxillary Prostheses. Part 1: Sandblasted and Acid-Etched Implants and Mucosal Tissue.’ Clin Implant Dent Relat Research. 2012 Dec;14(6):808-15 4 Fischer K, Stenberg T. ‘Prospective 10-year cohort study based on a randomized, controlled clinical trial (RCT) on implant-supported full-arch maxillary prostheses. Part II: Prosthetic outcomes and maintenance.’ Clin Implant Dent Relat Research.. 2013 Aug;15(4):498-508 5 Oates TW. et al. ‘Enhanced implant stability with a chemically modified SLA® surface: a randomized pilot study.’ Int. J. Oral Maxillofac. Implants. 2007;22(5):755–760. 6 Norm ASTM F67 (states min. tensile strength of annealed titanium). 7 Data on file for Straumann cold-worked titanium and Roxolid® Implants.