Final answer:
If the pulp is exposed but there is no chance for a favorable response, the procedure of choice is root canal therapy. This treatment helps to preserve the tooth structure and prevent the need for extraction.
Step-by-step explanation:
If the pulp is exposed but there is no chance for a favorable response, the procedure of choice is root canal therapy. Root canal therapy is a dental procedure that involves removing the infected or damaged pulp from the tooth and cleaning and shaping the root canals. The canals are then filled with a biocompatible material and sealed to prevent further infection. This treatment is typically done when the pulp is irreversibly damaged or infected, and there is no chance for the pulp to heal on its own. Root canal therapy helps to preserve the tooth structure and prevent the need for extraction.