These are the very important questions for the bachelor in dental surgery (BDS)1ST year student.so make sure you know all these questions to qce the exam..umm I have mentioned chapter wise question so make sure o check them .i hope you will find it helpful.. BDS 1st YEAR IMPORTANT QUESTION FOR THE EXAM FROM DENTAL MATERIALS SUBJECT. 1)GENERAL PROPERTIES OF DENTAL MATERIALS :modulus of elasticity :different type of corrosion :difference b/w malleability and ductility ,rigidity and toughness. :Creep and flow :thermal conductivity and thermal diffusivity. :Define tarnish and corrosion .explain galvanic corrosion and protection against corrosion. :define stress and strain and it's types :Define hue value and Chroma. :write about electrochemical corrosion 2IMPRESSION MATERIALS :short note on composition and setting of alginate. :classification of impression compound and impression materials. :list various elastomeric impression materials and descri...