[Study of the suitability casting patterns for secondary crowns].

A new method of sculpting casting patterns for secondary conical or parallel telescopic crowns was tested in a comparative study. After deep drawing of a carrier foil together with a spacer foil the space maintainer was removed out of the carrier cap. The space between the cap and the primary crown was filled with a light-curing resin liquid. After plymerisation the occlusal gap between this cap and the primary crown was measured in comparison to deep drawn Adapta carrier foils. The result is that the new method gives most accurate casting patterns.