Study Uncovers Implant Failure Risk Factors



Implants can be effective in restoring aesthetics and preserving oral health. But early failures do occur. One recent study from the University of Granada in Spain uncovered the most common risk factors behind these failures.

The retrospective clinical study evaluated 142 participants who received 276 BTI Biotechnology Institute external connection implants between 2007 and 2011. The researchers used a multilevel logistic regression model (a mixed effects-type model) to determine the influence of key variables on early implant failure.

Variable categories included participants (age, sex, systemic disease, tobacco use, alcohol consumption, bruxism, and degree of periodontal disease), implants (type of edentulism, localization, area, diameter, length, and bone quality), intervention (expansion mechanisms, sinus augmentation techniques, bone regeneration, and implant insertion), and postoperative variables (presence of pain or inflammation one week after surgery).

Early implant failure was significantly associated with males (P = 0.001), severe periodontal disease (P = 0.005), expansion technique (P = 0.002), and postoperative pain or inflammation one week after surgery (P < 0.001). The researchers recommend further analyses of the factors influencing osseointegration establishment to maximize the procedure’s predictability and minimize implant failures.

The study, “Risk Factors Associated With Early Implant Failure: A 5-Year Retrospective Clinical Study,” was published by The Journal of Prosthetic Dentistry. It was written by Maris Victoria Olmedo-Gaya, PhD; Francisco J. Manzano-Moreno, DDS, MSc; Esther Cañaveral-Cavero, DDS; Juan de Dios Luna-del Castillo, PhD; and Manuel Vallecillo-Capilla, PhD.

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