Impression materials are used to produce a detailed replica of the teeth and the tissues of the oral cavity. From the replica or impression, a model can be made which is used in the construction of full dentures, partial dentures, crowns, bridges and inlays. Numerous impression materials and techniques are available for taking impression in restorative dentistry. Better understanding of the Impression materials and their manipulative variables aid in successful restorations. Now a days, rubber base impression materials are becoming popular because of their accuracy, dimensional stability,...