Open AccessEVALUATION OF ACCURACY OF TWO DIFFERENT IMPRESSION MATERIALS AND THREE DIFFERENT IMPRESSION TECHNIQUES ON THE VERTICAL MISFIT OF A THREE UNIT IMPLANT SUPPORTED FIXED DENTURE PROSTHESES
Author(s) -
Debajyoti Sarkar,
Shitij Srivastava,
Abhinav Shekhar,
Amrita Jayaswal,
Love Kumar Bhatia,
Anshuman Chaturvedi
Publication year - 2020
Publication title -
university journal of dental sciences
Language(s) - English
Resource type - Journals
ISSN - 2395-5090
DOI - 10.21276/ujds.2020.6.1.6
Subject(s) - impression , tray , silicone , abutment , implant , materials science , dentistry , computer science , orthodontics , composite material , medicine , surgery , engineering , mechanical engineering , world wide web , structural engineering
AIM: The aim of the study is to evaluate the accuracy of two different impression materials and three different impression techniques on the vertical misfit of a three-unit implant supported fixed denture prostheses.Materials and Methods: A total of 60 casts were fabricated for the present study with a closed tray, open tray and open tray splinted abutment impression technique. Two different commercially available impression materials were used - polyether and addition silicone. Both the materials were used for all the above impression techniques.Results: Accordingtotheresultderivedfromthisstudypolyethershowedleastmarginalgap.On the other hand on the basis of impression techniques open tray impression with splinted transfer coping also exhibited a minimum marginal gap.Conclusion: 1. Higher marginal accuracy was found in impressions made by polyether compared to polyvinyl siloxane. 2. Open tray splinted technique exhibited a minimum marginal gap when used with polyether as impression material compared to open tray non splinted technique and closed tray technique.