Abstract: A denture attachment system includes an implant member adapted to be secured in a mandible such that a head of the implant member projects out of the mandible. A locking mechanism is adapted to be received in a denture so as to cooperate with the implant member to releasably secure the denture to the implant member. The locking mechanism has a receptacle for receiving the head of the implant member. A locking member is movable between a locking position in which the locking member blocks an access out of the receptacle by opposing a surface complementary to the shape of the head of the implant member to hold the implant member captive in the receptacle with points of contact between the head of the implant member and the locking member being diametrically opposed with respect to the head, and a release position in which the head of the implant member may enter/exit the receptacle).

Abstract: A denture attachment system (10) comprises an implant member (12) adapted to be secured in a mandible (B) such that a head (20) of the implant member (12) projects out of the mandible (B). A locking mechanism (14) is adapted to be received in a denture (A) so as to cooperate with the implant member (12) to releasably secure the denture (A) to the implant member (12). The locking mechanism (14) has a receptacle (50,51) for receiving the head (20) of the implant member (12).

Abstract: A denture adapted to be locked in place in the mouth which includes the provision of two spaced-apart implanted pins in the gum with the pins being exposed and mounting spherical heads, each adapted to receive a rigid frusto-spherical seat member which is aligned and located in the artificial gum material of a denture such that the denture can be nested on the implant structure. The two implants and seat members have a locking device in the form of a sliding plunger extending tangentially to the frusto-spherical surfaces and a bore provided therein for interfering with the head of the implant when locked.