Gum dammer of dammer resin is a natural resin added to paraffin to improve its smoothness in moulding and will render it more



1) Toughness

2) Resistant

3) Smoothness

4) Flow

 

The elastomeric impression materials showing highest and least potential for distortion on removal are:

1) Polysulfide, polyether respectively

2) Polyether, addition silicone respectively

3) Condensation silicone, addition silicone respectively

4) Polysulfide, addition silicone respectively