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Long‐term Survival of Straumann Dental Implants with TPS Surfaces: A Retrospective Study with a Follow‐up of 12 to 23 Years
Author(s) -
Becker Stephan T.,
BeckBroichsitter Benedicta E.,
Rossmann Christian M.,
Behrens Eleonore,
Jochens Arne,
Wiltfang Jörg
Publication year - 2016
Publication title -
clinical implant dentistry and related research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.338
H-Index - 85
eISSN - 1708-8208
pISSN - 1523-0899
DOI - 10.1111/cid.12334
Subject(s) - medicine , implant , dentistry , dental implant , proportional hazards model , periodontitis , survival rate , implant failure , survival analysis , radiological weapon , surgery
Purpose The aim of this study was to evaluate the long‐term dental implant survival rates of S traumann dental implants in a university hospital environment over 12 to 23 years. Materials and Methods A total of 388 Straumann dental implants with titanium‐sprayed surfaces ( TPS ) were inserted in 92 patients between 1988 and 1999 in the D epartment of O ral and M axillofacial S urgery of the U niversity H ospital S chleswig‐ H olstein in K iel, and they were reevaluated with standardized clinical and radiological exams. K aplan– M eier analyses were performed for individual factors. Cox proportional hazard regression analysis was used to detect the factors influencing long‐term implant failure. Results The long‐term implant survival rate was 88.03% after an observation time of 12.2 to 23.5 years. Cox regression revealed statistically significant influences of the International Team for Implantology (ITI) implantation type ( p = .00354) and tobacco smoking ( p = .01264) on implant failure. A proportion 82.8% of the patients with implant losses had a medical history of periodontitis. Peri‐implantitis was diagnosed in 9.7% of the remaining implants in the long‐term survey. Conclusions This study emphasized the long‐term rehabilitation capabilities of Straumann dental implants in complex cases. The survival rates after several years constitute important information for patients, as well as for clinicians, in deciding about different concepts of tooth replacement. Patient‐related and technical factors – determined before implant placement – could help to predict the risk of implant loss.