Abstract: A dental articulator capable of finely adjusting a three-dimensional articulation posture and exerting a secure fastening force by a lever is provided. The dental articulator includes a lower grip plate, a column, an arm, and an upper grip plate, wherein a first ball and a second ball are disposed between the arm and the upper grip plate, and wherein the dental articulator further comprises: a first clamp block having spherical recesses contacting with the first and second balls; a second clamp block having spherical recesses contacting with the first and second balls; a lever disposed on an outer surface of the second clamp block; an engaging bolt passing through the lever and the second clamp block into the first clamp block; and fastening bolts engaged into the lever to shorten a distance between the first and second clamp blocks.

Abstract: A method for applying a direction-adjusting extension piece in a dental implant includes the steps of screwing an orientation axle, provided with marks, in an implant; determining the required axis adjustment; screwing the orientation axle out of the implant, and screwing in an appropriate extension piece, with the determined necessary axis correction. The invention is also directed to the various components used in this method.

Abstract: An alignment cap for mounting artificial teeth on a working model, characterized thereby that it mainly consists of a proper arched cap made of a transparent material, e.g. a plastic, which at its back-side is hingedly fixed to an axis of rotation.

Abstract: Apparatus for fixing a plaster cast in an articulator for producing dental prostheses, including a three-point support (5) which is mainly defined by a body (8) to which two coaxial projections (15,16) are fixed and with which a small lath (11) is slidably received, the longitudinal direction of the lath (11) being perpendicular to the general longitudinal direction of the projections (15,16).