@Article{, title={Dimensional accuracy of impression techniques for the endosteal implants (An in vivo study): Part II}, author={Nadira A Hatim and Basim M Al–Mashaiky}, journal={Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان}, volume={7}, number={2}, pages={131-137}, year={2007}, abstract={Aims: To determine the most accurate impression techniques and materials to transfer the exactposition of a single implant to stone die to construct the prosthesis for selected clinical cases. Materialsand methods: Five clinical cases were selected with special criteria to construct implant (Frialit–2)prosthesis on a stone die with high accuracy according to the results of study. Four impressiontechniques were used (direct and indirect, each with one and two steps) using condensation, addition(heavy, medium and light consistencies) silicone impression materials. Ten impressions were taken foreach patient to produce a total number of 50 stone casts. The direct and indirect measurements wereperformed by using digital vernier. Results: The significant differences between the impressiontechniques at the three axes of dimensions (p ≤0.05) were applied clinically to construct the fixedprosthesis for each patient. The results of this study showed that the high dimensional change oflaboratory cast was related to indirect one step impression technique to transform the implant positionfrom patient mouth to laboratory cast. Addition curing (medium consistency) silicone impressionmaterial produced the lowest accurate stone die. Conclusions: The results of this study showed that thedirect two steps impression technique was the accurate impression technique for transformation ofimplant position from patient mouth to laboratory cast. Additional curing (light and heavy consistency)silicone impression material produced the most accurate stone die and gave a successful treatment tothe patient.

} }