<prompt> Impression material of choice in patients with oral submucous fibrosis is:ZOE pasteAddition siliconeCondensation siliconeImpression plaster  <response>: In OSMF patients as the mucosa is fibrosed, one needs to take proper care during impression:ZOE would be irritating to fibrosed tissues.Impression plaster has poor handling properties and flow.Condensation silicone is dimensionally less stable than addition silicone due to by-product formation.Addition silicone is the best suited material due to its dimensional stability, flow and handling properties. It is non-irritating to the tissues. 