Abstract
Two acrylic resin splinted techniques used for direct implant impression were assessed for accuracy in a laboratory model that simulated clinical practice. Two implants were embedded in the center of a polyurethane block. Microunit abutments were placed on the implants. Sixteen samples were fabricated on this model, using two square transfer copings rigidly connected to each other with autopolymerizing acrylic resin. Half the samples formed group 1 (n=8). For group 02 (n=8) the other half were stored at ambient conditions for 24 hours; then, the acrylic resin splint was sectioned in this group, and the segments were reconnected. Strain measurements were performed by four strain gauges (Excel Sensores Ltda.) placed on the superior surface of the polyurethane block. For group 1, measurements were made after the polymerization of the acrylic resin splint; for group 2 after the segments were reconnected. Student’s t-test for independent samples, with statistical significance at 5%, was applied to analyze the data. Significant difference (p
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