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What is To achieve the objectives of vertical condensation, it is necessary to produce: and explain in detail?
The root canal preparation should develop a continuously tapering cone. This shape mimics the natural canal shape. Funnel-shaped preparation of canal should merge with the access cavity so that instruments will slide into the canal. Thus, the access cavity and root canal preparation should form a continuous channel.
Textbook of endodontics, 3rd edition Nisha Garg, Amit Garg