Abstract: A stanchion assembly is adjustably supported in spaced relationship over an edentulous area of a negative dental impression. A dental cast formed from the impression includes an edentulous portion replicating the edentulous area. The edentulous portion is made detachable from the cast and has a thickness determined by said space provided. The assembly includes a parting plate removable from the cast. By replacing the removed plate with a spacer of greater or lesser thickness, the edentulous portion will be raised or lowered respectively precisely by an amount equal to the difference in thickness of the parting plate and its replacement spacer.

Abstract: Improved apparatus for positioning and suspending paraphernalia in a dental negative mould comprising a pair of pins insertable into the mould along the buccolingual midline of the tooth to be made detachable from the remainder of the dental cast or model. The paraphernalia articulates with the pins and is precisely positionable in the mould due to unique structure of the jig assembly and paraphernalia, or tooth die forming member, which permits movement of the latter along or rotation about three different axes.

Abstract: An apparatus for and method of forming a unitary tooth die and stem that is cast as an integral part of a dental stone model and separable therefrom for use as a unitary article of manufacture.