5‐year clinical experience with BTI® dental implants: risk factors for implant failure
- 23 July 2008
- journal article
- Published by Wiley in Journal of Clinical Periodontology
- Vol. 35 (8), 724-732
- https://doi.org/10.1111/j.1600-051x.2008.01248.x
Abstract
Objectives: The aims of this study were to identify with appropriate statistical tests the risk factors associated with implant failure and to evaluate the long-term survival of dental implants using implant loss as an outcome variable and performing an implant-, surgery- and patient-based analysis of failures. Material and Methods: A retrospective cohort study design was used. One thousand sixty patients received 5787 BTI® implants during the years of 2001–2005 in Vitoria, Spain. The potential influence of demographic items, clinical items, surgery-dependent items and prosthetic variables on implant survival was studied. Implant survival was analysed using a life-table analysis. Cox proportional hazards regression was used to identify risk factors related to implant failure. Results: Smoking habits, implant position, implant staging (two-stage implants) and the implementation of special techniques were statistically correlated with lower implant survival rates. Two risk factors associated with implant failure were detected in this study: implant staging (two-stage implants) and the use of special techniques. Additionally, the overall survival rates of BTI® implants were 99.2%, 96.4% and 96% for the implant-, surgery- and patient-based analysis, respectively. Totally, 28 out from 5787 implants (0.48%) were lost during the observation period. Most of the patients with implant failure (69.6%) presented chronic or aggressive periodontitis. Conclusions: Implant staging and the use of special techniques are risk factors for implant failure.Keywords
This publication has 20 references indexed in Scilit:
- Smoking interferes with the prognosis of dental implant treatment: a systematic review and meta‐analysisJournal of Clinical Periodontology, 2007
- Prevalence and risk variables for peri‐implant disease in Brazilian subjectsJournal of Clinical Periodontology, 2006
- Influence of smoking on osseointegrated implant failure: a meta‐analysisClinical Oral Implants Research, 2006
- Enhancement of Osseointegration by Generating a Dynamic Implant SurfaceJournal of Oral Implantology, 2006
- Nine‐ to fourteen‐year follow‐up of implant treatment. Part I: implant loss and associations to various factorsJournal of Clinical Periodontology, 2006
- Implant Survival in Periodontally Compromised PatientsThe Journal of Periodontology, 2004
- Autologous platelets as a source of proteins for healing and tissue regenerationThrombosis and Haemostasis, 2004
- Development of a Classification System for Periodontal Diseases and ConditionsAnnals of Periodontology, 1999
- The Relationship Between the Interleukin– 1 Periodontal Genotype and Implant Loss. Initial DataThe Journal of Periodontology, 1999
- A histomorghometric study of screw‐shaped and removal torque titanium implants with three different surface topographiesClinical Oral Implants Research, 1995