Author : George Iordanov Papanchev
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (116 download)
Book Synopsis Comparison of the Accuracy of Different Impression Taking Techniques Using Different Types of Transferring Methods for Bone Level Implants by : George Iordanov Papanchev
Download or read book Comparison of the Accuracy of Different Impression Taking Techniques Using Different Types of Transferring Methods for Bone Level Implants written by George Iordanov Papanchev and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: BackgroundThe accuracy and final perfect stress free fit of the final implant restoration is dependent on various factors. But one of the most important is the creation of accurate model. The contemporary approach uses both digital and material impression taking procedures. And still there are a lot of unbeneficial factors that can alter the accuracy of final prosthesisAim/HypothesisThe purpose of the study is to evaluate the influence accuracy of three different impression taking methods for bone level implants compared to intraoral scanningMaterials and Methods38 implants were scanned using scan flags and a digital model was created using the TRIOS intraoral scanner. All the patients were divided into two groups. For group one of 20 implants were transferred using open transfers and an open stock tray impression was taken with double layer double phase C-silicon. For the other 18 implants a double layer single phase additive silicon impression was taken. For both groups was created additional 3D printed custom tray and an impression was taken with polyether. All impressions were cast with dental plaster fourth grade and were scanned with scan flags consistent with the implant system. A digital comparison was made for each group compared to the digital model, acquired from the intraoral scanning.Results Showed some significant discrepancy in the group with the wash technique and the condensational silicon, less discrepancies were found in the group with additive silicon, and almost no significant discrepancies were found in none of the implants transferred with 3D printed custom tray.Conclusion Using a 3D printed custom tray impression taking approach could be a successful alternative to intraoral scanning.