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. doi: 10.1111/clr.12499. Epub 2014 Nov 5.


Purpose: This prospective cohort study evaluates the 10-year survival and incidence of peri-implant disease at implant and patient level of sandblasted, large grid, and acid-etched titanium dental implants (Straumann, soft tissue level, SLA surface) in fully and partially edentulous patients.

Material and methods: Patients who had dental implant surgery in the period between November 1997 and June 2001, with a follow-up of at least 10 years, were investigated for clinical and radiological examination. Among the 506 inserted dental implants in 250 patients, 10-year data regarding the outcome of implants were available for 374 dental implants in 177 patients. In the current study, peri-implantitis was defined as advanced bone loss (≧1.5 mm. postloading) in combination with bleeding on probing.

Results: At 10-year follow-up, only one implant was lost (0.3%) 2 months after implant surgery due to insufficient osseointegration. The average bone loss at 10 year postloading was 0.52 mm. Advanced bone loss at 10-year follow-up was present in 35 dental implants (9.8%). Seven percent of the observed dental implants showed bleeding on probing in combination with advanced bone loss and 4.2% when setting the threshold for advanced bone loss at 2.0 mm. Advanced bone loss without bleeding on probing was present in 2.8% of all implants.

Conclusion: In this prospective study, the 10-year survival rate at implant and patient level was 99.7% and 99.4%, respectively. Peri-implantitis was present in 7% of the observed dental implants according to the above-mentioned definition of peri-implantitis. This study shows that SLA implants offer predictable long-term results as support in the treatment of fully and partially edentulous patients.

Keywords: SLA surface; dental implant; implant success rate; implant survival rate; peri-implant disease; peri-implantitis; soft tissue level implants.

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Aggressive Periodontitis / epidemiology*
  • Aggressive Periodontitis / pathology
  • Dental Implantation / methods*
  • Dental Implants / adverse effects*
  • Female
  • Follow-Up Studies
  • Humans
  • Incidence
  • Male
  • Middle Aged
  • Mouth, Edentulous / therapy*
  • Prospective Studies
  • Stomatitis, Denture / epidemiology*
  • Stomatitis, Denture / pathology
  • Titanium / adverse effects*


  • Dental Implants
  • Titanium