This prospective controlled clinical trial evaluates the three-dimensional positional accuracy of implant-level impressions obtained using scannable healing abutments compared with conventional open-tray and closed-tray impression techniques in partially edentulous patients with unilateral free-end saddle situations.
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Three-dimensional implant positional accuracy (RMS deviation)
Timeframe: Periprocedural (single assessment, 1 week after second-stage implant surgery)