Fracture of Dental Implants: Literature Review and Report of a Case

A review of the aetiology and management of fractured dental implants and a case report

“…1 The literature also reports a 1.9 % fracture rate in 157 ITI implants (Straumann AG, Waldenburg, Switzerland) that were followed for up to two years after loading. 11 Case reports and case series of fractured ITI, 12,13 and Core-Vent (Zimmer Dental, 1900 Aston Avenue, Carlsbad, CA 92008-7308.USA) fixtures also exist. 14,15 …”

“…20,22 This may particularly be the case in fixtures whose design fea tures incorporate a significant void in this region. [12][13][14] Histological analysis of fractured implant portions retained in bone reveal a high degree of osseointegration in the retained portion, apical to marginal bone levels. 12,15 In this case, radiographic examination of the retained portion showed close apposition of bone around the implant periphery, apical to the marginal bone level, indicating a high degree of osseointegration.…”

“…The authors suggested that this resulted in the implant becoming more prone to bending and fatigue fracture. 13 However, there is currently little addi tional evidence to support these sugges tions as major contributors to implant fracture.…”

Wear and Corrosion Interactions on Titanium in Oral Environment: Literature Review

“…Friction on titanium during mastication can destroy the TiO 2 film that leads to a material loss [1,9,13,107] and possible failures of dental implants and prostheses [6,17]. As a result from corrosion and wear processes, metallic ions are released, and wear particles originating from titanium were found in the surrounding tissues and associated to inflammatory reactions [106,[108][109][110][111].…”

“…In that study, areas with clear signs of localized corrosion were detected by scanning electron microscopy on all implants and inner crown surfaces [16]. Another previous study reported a synergistic effect of distinct mechanisms, which led to total failure of implants under extrinsic common fatigue loading [6,17]. The propagation of a crack from the body of the retrieved implant was detected by scanning electron microscopy [6].…”