Takeshita F, Kuroki H, Yamasaki A, Suetsugu T
Faculty of Dentistry, Kyushu University, Higashiku Fukuoka, Japan.
Int J Oral Maxillofac Implants. 1995 May-Jun;10(3):367-72.
Seven failed endosseous dental implants that were removed from humans were examined histologically. Results suggest that the hollow-basket portion or the vent should be located as far from the gingiva as possible, and that an adequate healing period is needed for implant placement following tooth extraction. In addition, findings also suggest that the hollow-basket implant is not suitable for a healing socket, that periodic inspection is necessary for two-stage implants to evaluate adaptation of the embedded junction between the abutment and implant in the gingiva, and that there is risk of coating separation from hydroxyapatite-coated implants and possibilities of coating resorption.
对七颗从人体取出的失败的牙种植体进行了组织学检查。结果表明，中空篮状部分或通气孔应尽可能远离牙龈，拔牙后进行种植体植入需要足够的愈合期。此外，研究结果还表明，中空篮状种植体不适合于愈合中的牙槽窝，对于两段式种植体，需要定期检查以评估基台与种植体在牙龈中的嵌入连接处的适配情况，并且羟基磷灰石涂层种植体存在涂层分离的风险以及涂层吸收的可能性。
