Year : 2020

Volume : Volume 11

Issue : Issue 3

Address for correspondence :
Dr. Rohit Thora.
rohitthora@gmail.com

Abstract

Background:  The innovative lamp has also kindled and revolutionized dentistry, as a result of which, newer and better materials are being developed consistently. The field of fixed prosthodontics is no exception and has also seen radical changes. New materials are being introduced everyday with increased emphasis on precision. Various types of die materials are available, apart from the most commonly used stones, like polyurethane resins, epoxy resin, electroplated copper, electroplated silver, ceramic, silico phosphate cement, amalgam, selfcure resins etc. each has its own advantages and disadvantage. These conventional die materials have also undergone a revolutionary change and various modified and improved varieties are currently available. These materials exhibit limitations attributed to their inherent microscopic structures. Efforts are on to bring out better qualities in this material. This study was conducted to evaluate and compare the physical properties of the conventional gypsum products with the improvised variety and the polyurethanes, in order to justify their use, for increased precision. Most of the die materials have phased out because of their inferior Physical Properties, sensitivity of the handling technique and time factor involved.

Keywords: Physical properties, dental stone, synthetic resin die material.