Year : 2021

Volume : Volume 12

Issue : Issue 6

Address for correspondence :
Dr. Irina Singh,
zoya.irina@gmail.com

Abstract

Aim: The aim of the study was to compare the accuracy of three different implant impression techniques using two elastomeric impression materials. Materials and Methods: An epoxy resin master cast was fabricated with implants screwed in the right canine, right first molar, left canine, and left first molar regions. Impressions of this epoxy resin cast were made with polyether and polyvinyl siloxane impression material
using open tray non splinted impression technique, open tray splinted impression technique and closed tray impression technique to prepare the working casts. The linear distance of the implants on the epoxy resin master cast was compared with linear inter implant analog distance on all the working casts. The data obtained were then statistically analyzed. Results: The mean difference from the control group with respect to the
four linear measurements made was least for the open tray splinted impression technique, followed by the open tray non- splinted impression technique and maximum for the closed tray impression technique. While comparing the two impression materials polyether and polyvinyl siloxane, the results were statistically insignificant. Conclusion: Open tray splinted impression technique is more accurate than the open tray non-splinted and closed tray impression technique. Both polyether and polyvinyl siloxane impression materials are suited for complete-arch impressions and have comparable accuracy.
Keywords: Elastomeric, Implant, Impression, Material.