Background: Accurate implant impressions play a significant role and serve as a starting point in the process of producing good working casts. The present study was conducted to assess accuracy of different materials used in impressions for fixed partial dentures. Materials & Methods: It comprised of alginate, polysulphide, polyether and condensation silicone impression material. Digital photographs of the master model and of the stone casts were taken to evaluate the impression materials’ accuracy and the discrepancies between them were measured. Results: The mean discrepancies between the prepared tooth edges in the master model and in the stone casts in group I was 0.32 mm, in group II was 0.18 mm, in group III was 0.14 mm and in group IV was 0.36 mm. The difference was significant (P< 0.05). Conclusion: Different impression materials and techniques influenced the stone casts’ accuracy in a way that polyether, polysulfide and condensation silicone were more accurate than the other materials.