Abstract: There is provided a cassette-implant for implantation in the body of mammals, comprising a housing with at least one removable and replaceable wall portion, with inlet and with outlet means for the supply of a liquid nutrient, and which cassette contains a thin disk or tablet formed member, or a plurality of stacked discs which contain one or more distinct spaces, each of which is adapted to receive a signal individual cell which is cultivated in such space, at least one of the walls being transparent; and a method for the controlled cultivation of cells by means of such cassette, while said cassette is implanted inside the body of mammals, but said cultivation being continued at will on the outside of the body while said cassette is supplied with natural or artificial nutrient media, being connected to the living body or only to a source of nutrient, said method providing means for the evaluation of the influence of various substances on the growth of a single cell, or on the growth of a number of single cel

Abstract: A dental implant comprising in combination a foundation member of V-shaped cross section, comprising two members connected at the spex of the V, the foundation member being adapted to be firmly connected with crown-support means, said foundation member being adapted to be inserted into the jaw so as to form a V-shaped structure or one having the shape of an inverted V. Preferably the foundation member plates have a plurality of holes.

Abstract: An endosseous dental implant comprising a lower part adapted to be inserted into the jawbone, having a surface-layer of open structure, containing a catalyst adapted to enhance osteogenesis. The surface layer is preferably porous and of about 100 to 400 .mu. thickness and the catalyst is preferably in granular form.

Abstract: An endosseous dental implant comprises in combination a conical foundation member to be inserted into an alveole of the jaw bone or into a hole bored therein. The foundation member has a longitudinal bore open at top and having an interior saw thread at its upper part. A second member adapted to carry an artificial dental element and having a threaded shank is inserted and screwed into the bore of the conical member. Shock absorbing means are provided at the interface of the two elements.