SEM images on fibrin network, image courtesy of Empa, 2016

Straumann® SLA®

Longevity and efficiency in daily practice.

The classic SLA® surface, introduced in 1998, is based on a large-grit sandblasting technique that generates a macro-roughness on the titanium surface. This is followed by acid-etching that superposes a micro-roughness. The resulting topography offers an ideal structure for cell attachment. Many peer-reviewed clinical and preclinical studies have confirmed its strong long-term performance and reliability, making it one of the best documented surfaces in dental implantology. According to an independent study, the odds ratio of developing peri-implantitis was more than three times higher in patients treated with competitor implant systems compared with Straumann® implants with SLA® surfaces.1

Survival rates

High and consistent survival rates between 95.1% and 98.8% documented by different studies after 5 and 10 year follow-up.2-7

Bone preservation

Average bone loss of 0.5-1 mm after 10 years (baseline defined as implant loading time).3,4

Low prevalence of peri-implantitis

Very low prevalence of peri-implantitis (1.8%) over the 10-year follow-up period.3

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References

1 Buser D, Janner SF, Wittneben JG, Bragger U, Ramseier CA, Salvi GE. 10-year survival and success rates of 511 titanium implants with a sandblasted and acid-etched surface: a retrospective study in 303 partially edentulous patients. Clin Implant Dent Relat Res. 2012 Dec;14(6):839-51.
2 Fischer K, Stenberg T.: 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 Res. 2012 Dec;14(6):808-15.
3 van Velzen FJ, Ofec R, Schulten EA, Ten Bruggenkate CM,.10-year survival rate and the incidence of peri-implant disease of 374 titanium dental implants with a SLA surface: a prospective cohort study in 177 fully and partially edentulous patients. Clin Oral Implants Res. 2015 Oct;26(10):1121-8.
4 Cochran DL, Jackson JM, Bernard JP, ten Bruggenkate CM, Buser D, Taylor TD, Weingart D, Schoolfield JD, Jones AA, Oates TW Jr. A 5-year prospective multicenter study of early loaded titanium implants with a sandblasted and acid-etched surface. Int J Oral Maxillofac Implants. 2011 Nov-Dec;26(6):1324-32.
5 Cochran D, Oates T, Morton D, Jones A, Buser D, Peters F. Clinical field trial examining an implant with a sand-blasted, acid-etched surface. J Periodontol. 2007 Jun;78(6):974-82. 18 Bornstein MM, Schmid B, Belser UC, Lussi A, Buser D. Early loading of non-submerged titanium implants with a sandblasted and acid-etched surface. 5-year results of a prospective study in partially edentulous patients. Clin Oral Implants Res. 2005 Dec;16(6):631-8.
6 Roccuzzo M1, Aglietta M, Bunino M, Bonino L. Early loading of sandblasted and acid-etched implants: a randomized-controlled double-blind split-mouth study. Five-year results. Clin Oral Implants Res. 2008 Feb;19(2):148-52.
7 Derks J, Schaller D, Håkansson J, Wennström JL, Tomasi C, Berglundh T. Effectiveness of Implant Therapy Analyzed in a Swedish Population: Prevalence of Peri-implantitis. J Dent Res. 2016 Jan;95(1):43-9. doi