Authors
Nedir R., Bischof M., Pujol O., Houriet R., Samson J., Lombardi T.
Title
induced implant periapical lesion: a case report.
Journal
The International Journal of Oral and Maxillofacial Implants 22:1001-1006, 2007
Abstract
Abstract This paper presents an unreported etiology of implant periapical lesion (IPL). The presence of an osteolytic area around the apex and around the middle portion of a stable Straumann hollow screw implant was found on periapical radiographs 3.5 years after implant placement. Case management involved curettage of the soft tissue surrounding the implant apex as well as resection of the non-osseointegrated portion of the implant. Histopathological examination revealed a connective fibrous tissue containing a dense chronic inflammatory infiltrate with a foreign body material. Polarized light microscopy and Fourier Transform Infrared (FTIR) micro-spectroscopy identified the foreign body material as starch particles. Etiology of this IPL was thus related to a foreign body reaction to starch particles. This exogenous contamination probably originated from starch coated gloves during the surgical procedure. This case report suggests that IPL may successfully be treated by debridement and implant resection instead of implant removal. Peri-implant apical soft tissue should be systematically submitted for histopathological examination.
Keywords
Key words: dental implants, apical peri-implantitis, implant failure, radiolucency, granuloma, starch
