Fig. 2From: The impact of impression coping geometrical design on accuracy of implant impressions: an experimental studya Osstem test model with two parallel implants on the left side and two nonparallel implants on the right side. b Straumann test model with two parallel implants on the left side and two nonparallel implants on the right side. c SIC Invent test model with two parallel implants on the left side and two nonparallel implants on the right side.Back to article page