Starch-induced implant periapical lesion: a case report.
Starch-induced implant periapical lesion: a case report.
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淀粉引起的种植体根尖周病变：病例报告。
DOI：
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发表时间：
2007
期刊：
影响因子：
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通讯作者：
T. Lombardi
中科院分区：
文献类型：
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作者：
R. Nedir;M. Bischof;O. Pujol;R. Houriet;J. Samson;T. Lombardi
本文报告了种植体根尖周病变（IPL）与以前未报告的病因。在种植体植入后3.5年的根尖周X线片上，发现稳定的Straumann空心螺钉种植体的根尖周围和中间部分周围存在溶骨性区域。病例处理包括刮除种植体顶端周围的软组织以及切除种植体的非骨整合部分。组织学检查显示结缔纤维组织含有致密的慢性炎性浸润和异物。偏振光显微镜和傅立叶变换红外显微光谱法确定异物材料为淀粉颗粒。因此，该IPL的病因与淀粉颗粒的异物反应有关。这种外源性污染可能源于手术过程中的淀粉涂层手套。该病例报告表明，IPL可以通过清创和植入物切除而不是植入物取出成功治疗。种植体周围根尖软组织应系统提交组织病理学检查。
This paper reports an implant periapical lesion (IPL) with a previously unreported etiology. 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 nonosseointegrated portion of the implant. Histopathologic examination revealed a connective fibrous tissue containing a dense chronic inflammatory infiltrate with a foreign-body material. Polarized light microscopy and Fourier transform infrared microspectroscopy 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 histopathologic examination.