Accuracy of Different Impression Techniques on The Fit of Screw-Retained Bar Joining Two Interforaminal Implants

Gamal El Din, Bassant Sherif; Nawar, Noha; Abdelfattah, Ahmed

doi:10.21608/asdj.2021.62249.1023

Accuracy of Different Impression Techniques on The Fit of Screw-Retained Bar Joining Two Interforaminal Implants

Document Type : Original articles

Authors

¹ Demonstrator, Oral and Maxillofacial Prosthodontics Department, Faculty of Dentistry Ain-Shams University, Cairo, Egypt

² Associate professor of Oral and Maxillofacial prosthodontics Department, Faculty of Dentistry Ain-Shams University, Cairo, Egypt

³ Lecturer of Oral and Maxillofacial prosthodontics Department, Faculty of Dentistry Ain-Shams University, Cairo, Egypt

10.21608/asdj.2021.62249.1023

Abstract

Purpose: To evaluate the accuracy of two different impression techniques on the fit of screw retained bar in implant assisted overdentures.
Methodology: Ten completely edentulous patients were selected from Removable Prosthodontics Department, AinShams university according to the inclusion and exclusion criteria. All patients received implant assisted mandibular overdenture with a screw retained bar. Two bars were made for each patient by two different impression techniques. In the first technique, open top impression was used to fabricate the screw-retained bar. However, in the second technique intraoral digital impression was used. Passive fit of each bar was then evaluated.
Results: The results of this study showed non statistically significant difference between both impression techniques.
Conclusion: Within the limitations of this study it may be concluded that the results for both impression techniques on the fit of the screw-retained bar in implant assisted overdentures
Keywords: Intra oral scanning, Open top impression, Implant retained overdenture.

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