PROBLEM TO BE SOLVED: To provide an implant keeper facilitating its mounting to an abutment and preventing its easy slacking from the abutment even if being used for long periods.SOLUTION: This implant keeper includes a keeper body made of a soft-magnetic material, which includes a recess 21 for receiving the head 41 of the abutment having a female screw portion 43, and a female screw portion 22 extending along its center axis in communication with the recess 21, and a screw member 3 threadably engageable with the female screw portion 22 of the keeper body 2 and the female screw portion 43 of the abutment 4, whereby the keeper body 2 is tightly fastened to the abutment 4 by tension exerted by the screw member 3 threadably engaging the female screw portion 22 of the keeper body 2 and the female screw portion 43 of the abutment 4.COPYRIGHT: (C)2009,JPO&INPIT【課題】 アバットメントへの取り付けが簡単で、かつ長期間使用してもアバットメントとの間に緩みが生じないインプラント用キーパーを提供する。【解決手段】 メネジ部43を有するアバットメント4の頭部41を受承する凹部21と、凹部21と連通するように中央軸線に沿って設けられたメネジ部22とを有する軟磁性材料からなるキーパー本体2と、キーパー本体2のメネジ部22とアバットメント4のメネジ部43に螺合するネジ部材3とからなり、キーパー本体2のメネジ部22とアバットメント4のメネジ部43に螺合したネジ部材3による引張り力により、キーパー本体2がアバットメント4に締着されるインプラント用キーパー。【選択図】 図1