Developing a fixture level cast for implants with interfering axial convergence.

This article presents a novel technique for developing a master cast for two implants which are clinically placed convergent and very close to each other. The technique consists of making an implant level impression using a transfer coping for the posterior implant. Then fabricate a positional index intraorally, which contains a registration of the second transfer coping, the healing abutment reattached from the transfer in the impression and the adjacent teeth. The master cast is altered, using this positional index to incorporate the second implant analog.