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.
OBJECTIVE
This retrospective study assessed the 10-year outcomes of titanium implants with a sandblasted and acid-etched (SLA) surface in a large cohort of partially edentulous patients.


METHODS
Records of patients treated with SLA implants between May 1997 and January 2001 were screened. Eligible patients were contacted and invited to undergo a clinical and radiologic examination. Each implant was classified according to strict success criteria.


RESULTS
Three hundred three patients with 511 SLA implants were available for the examination. The mean age of the patients at implant surgery was 48 years. Over the 10-year period, no implant fracture was noted, whereas six implants (1.2%) were lost. Two implants (0.4%) showed signs of suppuration at the 10-year examination, whereas seven implants had a history of peri-implantitis (1.4%) during the 10-year period, but presented with healthy peri-implant soft tissues at examination. The remaining 496 implants fulfilled the success criteria. The mean Plaque Index was 0.65 (±0.64), the mean Sulcus Bleeding Index 1.32 (±0.57), the mean Probing Depth 3.27 mm (±1.06), and the mean distance from the implant shoulder to the mucosal margin value -0.42 mm (±1.27). The radiologic mean distance from the implant shoulder to the first bone-to-implant contact was 3.32 mm (±0.73).


CONCLUSIONS
The present retrospective analysis resulted in a 10-year implant survival rate of 98.8% and a success rate of 97.0%. In addition, the prevalence of peri-implantitis in this large cohort of orally healthy patients was low with 1.8% during the 10-year period.
Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Bern, Bern, Switzerland. daniel.buser@zmk.unibe.ch
Daniel
D
Buser
Simone F M
SF
Janner
Julia-Gabriela
JG
Wittneben
Urs
U
Brägger
Christoph A
CA
Ramseier
Giovanni E
GE
Salvi
D000134:Acid Etching, Dental; D016301:Alveolar Bone Loss / Q000175:diagnosis; D003758:Dental Implantation, Endosseous; D015921:Dental Implants; D003774:Dental Plaque Index; D017267:Dental Prosthesis Design; D019232:Dental Restoration Failure; D005260:Female; D006801:Humans; D007576:Jaw, Edentulous, Partially / Q000534:rehabilitation; D008297:Male; D008875:Middle Aged; D010352:Patient Dropouts / Q000706:statistics & numerical data; D010512:Periodontal Index; D012189:Retrospective Studies; D013499:Surface Properties; D014025:Titanium
D015921:Dental Implants; D014025:Titanium