A HISTOLOGIC EVALUATION OF 8 CASES OF FAILED DENTAL IMPLANTS - IS BONE OVERHEATING THE MOST PROBABLE CAUSE

Biomechanical overloading has been stated to be, overall, the major ca use of implant failures. Very important can be, however, in the etiopa thogenesis of early implant failure, the overheating of the surgical s ite. The authors present eight cases of implant loss most probably due to bone overheating, even if other causes cannot be excluded. The mic roscopical picture, in all cases, was composed by the same features: ( 1) presence of bone sequestra; (2) no regeneration of the peri-implant bone; (3) presence of an inflammatory infiltrate in the gap between b one and implant; (4) no organization of the peri-implant bone clot; (5 ) presence of a compact and mature bone around the implant; (6) presen ce of bacteria around the implant and the necrotic bone. (C) 1998 Publ ished by Elsevier Science Ltd. All rights reserved.