Implant failure: Etiology and complications

Abstract

The possible occurrence of implant failure is a major concern for implantologists and knowledge in such unavoidable fact is clinically essential. Periimplantitis is an inflammatory response in which there is a loss of the bony support of the implant. Diagnosis is based on the clinical signs of infection such as hyperplastic soft tissues, suppuration, colour changes of the marginal peri-implant tissues and gradual bone loss. This site-specific infection may have many features in common with chronic adult periodontitis. Surgical trauma, micromotion and overload are also considered to be associated with implant failures. The lack of osseointegration is generally distinguished by implant mobility and radiological radiolucency. Here, the implant is considered to be failed . Progressive marginal bone loss without marked mobility is referring to a failing implant. The purpose of this concise review was to discuss the implant complications and failure by highlighting the major etiologic factors as well as the parameters used for evaluating such failure.

Surface roughness enhances the osseointegration of titanium headposts in non-human primates

“…Parameters concerning the rate and extent of osseointegration have been scrutinized with considerable scientific effort over the past 3 decades. Well-recognized factors that support implant osseointegration include: the incorporation of a micrometer and/or nanometer scale surface topography (Lintner et al, 1986;Albrektsson and Wennerberg, 2005;Aldinger et al, 2009;Wennerberg and Albrektsson, 2009), close proximity of implant to the bone surface (Sandborn et al, 1988), implant stability (repetitive motion less than 150 um) (Engh et al, 1992;Kienapfel et al, 1999;Sakka and Coulthard, 2011), implant material (Jinno et al, 1998;Jakobsen et al, 2010) and cleanliness (Esposito et al, 1999;Elias and Meirelles, 2010).…”

Investigation of the influence of design details on short implant biomechanics using colorimetric photoelastic analysis: a pilot study

“…This loss can be attributed to surgical trauma, inflammation, excessive micromovements, and loading conditions. Of these, loading conditions are considered one of the most critical factors influencing bone loss (Sakka and Coulthard, 2011;Ueda et al, 2004).…”

“…According to this concept, abutments should have a narrower diameter than the implant platform itself (Bilhan et al, 2010;Dursun et al, 2014;Sakka and Coulthard, 2011;Vandeweghe and De Bruyn, 2012). In addition, there are other implant features that have proven to be effective for bone maintenance.…”

Total Deformation of Multiple Implant-Supported Prostheses through Three-Dimensional Finite Element Analysis

“…The effects of restoration material and connection type on stress distribution are of great importance for treatment success (Vandamme et al, 2007). In this sense, one factor that could lead to implant failures in the osseointegration is micromotion (Sakka & Coulthard, 2011).…”