KNOWLEDGE AND AWARENESS ON CURRENT MATERIALS AND IMPRESSION TECHNIQUES FOR COMPLETE DENTURES AMONG INTERNS.

Abstract

Background: Impression making is one of the crucial factors in determining success or failure of complete denture therapy. The precise reproduction of edentulous foundation is essential for retention, stability, and support of the removable prosthesis. Different evidence suggests that there is variability in materials and techniques regarding impressions making for complete dentures. There is little published information on studies conducted among Interns. The purpose of this study was to evaluate current materials and methods for impressions for complete denture prosthodontics among dental students.

Materials & Methods: A questionnaire based survey was conducted among dental Interns from February 2021 to March 2021. A total of 12 questions were prepared and sent through an online platform. A self-administered anonymous questionnaire was distributed to the participants. Data were analyzed by using SPSS software version 23.

Results: Majority of responses indicated use of irreversible hydrocolloid in stock metal tray for making the preliminary impression. The selective pressure was the predominantly used impression philosophy (40%). The most common material for the fabrication of custom trays was autopolymerizing acrylic resin (46%). All respondents border molded the custom tray prior to making the final impression. The final impression materials used were zinc oxide eugenol impression paste (67.83%), polyvinyl siloxane (9.57%), polyether (1.74%) and polysulphide (20.87%).

Conclusion: Although there is variability in impression materials and techniques used by Prosthodontists among Interns for the fabrication of complete dentures, the results showed interesting trends. Most practitioners followed the traditional techniques of complete denture impression procedures.