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Evaluation The Accuracy Of Modified Closed Tray Impression Technique For Multiple Angled Implants Using Condensation-Silicone Impression Material

Authors: Osama A Hammoodi --- Lamia T Rejab --- Wael T Alwattar
Journal: Al-Rafidain Dental Journal مجلة الرافدين لطب الأسنان ISSN: 18121217 Year: 2013 Volume: 13 Issue: 27 Pages: 413-422
Publisher: Mosul University جامعة الموصل


Aims: is to evaluate the linear distance accuracy of new modified closed tray impression technique of 6 angled implants and compared with open tray technique using condensation silicone impression material. Materials and Methods: : standard master model was prepared with six angled implants analogues (25 degree) buccaly and labial deviated .Two impression techniques were performed (open tray and new modified splinted closed tray) using condensation silicone impression material , then poured with die type IV stone. Capturing of the standard model and stone casts produced from both impression techniques. To perfume the measurement, first determine and label the reference points and reference line on standard model then measure the linear distances and angles with Matalab software program ( The entire measurements of the stone models were done by coordination way of implants analogues in sequence .Total number of impressions was ten, five impression for each technique. Statistically one sample t-test and two sample t-tests were performed to determine the significance differenc at p ≤ 0.05. Results: appeared there is no significance difference of the linear distances and angles of standard model and stone casts for open tray and a new modified closed splinted techniques. Conclusion: A new modified closed splinted technique is an accurate impression technique for multiple angled (6) implants as same as the open tray technique with condensation silicon, so a new technique is an accurate and easier technique to be carried out with multiple angled non- parallel implants.

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