Abstract: A removable centric stop mechanism 10 for use in a system for making dental restorations. The stop mechanism 10 includes an elongate stop member 11 that can be firmly attached or connected to the dental model and can further be removed from the dental model when so desired. The elongate stop member 11 further incorporates a threaded elongate member 36 that can be threaded to and fro in a bore 34 in the elongate stop member 11 to thereby adjust the effective length of the elongate stop member 11.

Abstract: Tray (10) for forming dental model comprises base wall (12) forming floor upon which dental casting material is poured. Spaced apart projections (14) extending upwardly from base wall (12). An upstanding axis of each projection (14) is substantially perpendicular to the upper face of the base wall (12). Projections (14) are arranged in two rows, with the projections (14) in one row being offset from corresponding projections (14) in the other row. Sidewalls of each projection (14) taper inwardly at an angle of between about 82 to 88 degrees with the upper face of the base wall (12). Each projection (14) has a thickness at its base of about 3 to 7 millimeters. The projections (14) are spaced from each other at their bases by a distance of from 0 to 5 millimeters.

Abstract: A carrier sheet comprising a printed paper sheet having an integrated detachable card with a magnetic backing and method of manufacturing same is described. The carrier sheet is comprised of a printed paper sheet having printed matter on at least a front face thereof. The printed matter contains card information printed in a card area. A polyfilm patch is adhered over the card area and over the card information printed thereon. A thin flexible patch of magnet material is adhesively secured on a rear face of the paper sheet and extends over the card area. A die-cut is made in the sheet and delineates the contour of the card area and extends through the polyfilm patch, the paper sheet and partly into the patch of magnet material to form a burstable region along said die-cut to hold the card in the carrier sheet. The die-cut can have any ornamental shape.