Desirable or Idela Properties of an Impression material: These are the properties a Operator looks at, which make it easy for him/her to operate and get an Ideal Impression. The All the Properties should be fulfilled to produce an Ideal Impression material, till date such an impression material has not been discovered or invented, so [...]
Agar Reversible Hydrocolloid Impression Material
December 28, 2011 By Leave a Comment
Agar Impression material is an Hydrocolloid Reversible Impression material. It is called Reversible Impression material because of its property of reversing their physical state, which in reusing the impression material for multiple number of impressions. Agar Hydrocolloid was the first successful elastic impression material to be used in dentistry. History of Agar Impression material: It [...]
Silicone Elastomeric Impression materials
May 25, 2009 By
CONDENSATION SILICONES It was the first type of silicone impression material. Also known as conventional silicones. Setting occurs in room temp , so called as RTV silicones. Composition: Base paste Polydimethyl siloxane (hydroxy terminated) Colloidal silica or micro sized metal oxide filler putty viscosity – 60-70% medium viscosity – 35-75 % low viscosity – 5-15% [...]
Polysulfide Elastomeric Impression materials
May 23, 2009 By 2 Comments
POLYSULFIDE ELASTOMERIC IMPRESSION MATERIAL: First elastomeric impression material to be introduced, also known as mercaptan / thymol, it is a type of Rubber based impression material Supplied as Base paste (white) Accelerator (brown/grey) Available in 3 viscosities: Light bodied Medium bodied Heavy bodied Composition: Base paste: Liquid polysulfide polymer [...]
Elastomeric Impression Materials
May 19, 2009 By Leave a Comment
Elastomeric Impression materials: These are basically synthetic rubber based materials which were initially called as Rubber Impression materials but currently they are known as Non aqueous Elastomeric Impression materials. Classification of Elastomeric Impression materials: Till now the elastomeric impression materials are divided into 3 types based on the material used 1. Polyether 2. Polysulfide 3. [...]
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