Dental casts having vertical adjustments

Apparatus for preparing a dental cast from a negative dental impression, said cast having a detachable vertically adjustable edentulous portion replicating an edentulous area of said impression, said apparatus comprising

• pin means insertable in said impression adjacent said edentulous area,
• a stanchion assembly articulating with said pin means and positionable above said edentulous area in spaced relationship thereto, said stanchion assembly comprising
• a parting plate of substantially identical size and shape as said edentulous area,
• an upright stanchion positioned above said parting plate and having mounting means at its upper end for effecting said articulation with said pin means,
• holding means for releasably interconnecting said parting plate and stanchion, said holding means being permanently affixed to said edentulous portion, said parting plate being removable from said dental cast for substitution by another plate of different thickness whereby engagement therewith by said holding means and edentulous portion provides said vertical adjustability thereto, said vertical adjustability including raising and lowering of said edentulous portion depending upon difference in thickness between said parting plate and said another plate of different thickness.