TOPIC: COMMON VIVA QUESTIONQ25. Define impression?Ans. A negative likeness or copy in reverse of the surface of an object; an imprint of the teeth and adjacent structures for use in dentistry.Q26. Define a dental impression?Ans. A negative imprint of an oral structure used to produce a positive replica of the structure to be used as a permanent record or in the production of a dental restoration or prosthesis.Q27. What are the basic objectives of impression making?Ans. The objectives of impression making are:Preservation of the alveolar ridgeRetentionAestheticsStabilitySupportQ28. What are the theories…
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