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Long-Term Evaluation of ANKYLOS® Dental Implants

16 September 2013
Long-Term Evaluation of ANKYLOS® Dental Implants, Part I: 20-Year Life Table Analysis of a Longitudinal Study of More Than 12,500 Implants Krebs M, Schmenger K, Neumann K, Weigl P, Moser W, Nentwig G-H
Between April of 1991 and May of 2011, 12,737 ANKYLOS® (DENTSPLY Implants Manufacturing GmbH, Mannheim, Germany) implants were placed in 4,206 patients for a variety of clinical indications. The Kaplan–Meier cumulative survival rate (CSR) was 93.3% after 204 months. Most of the failures (198/1.6%) occurred during the first year after implant placement and before prosthesis delivery. A significantly higher (p < .001) number of implants placed in the mandible and in hard quality bone failed than those placed in the maxilla or in weak and normal quality bone. Female patients had significantly higher CSRs (93.7% 204 months) than male patients (92.8% 204 months/p = .029). The implants showed low rates of peri-implant bone loss after 204 months (horizontal: ≤1 mm: 85.7%, vertical: ≤1 mm: 85.2%).

Conclusion

ANKYLOS dental implants followed for up to 20 years have high CSRs and low rates of peri-implant bone loss.

 Clinical Implant Dentistry and Related Research,

DOI: 10.1111/cid.12154

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