Final answer:
The Cold Test is the most widely used alongside electric pulp testing to assess pulp vitality, which typically uses a cold substance to provoke a response from sensory fibers in the dental pulp.
Step-by-step explanation:
The most widely used test in conjunction with electric pulp testing to confirm pulp vitality is the Thermal Sensitivity Test, particularly the Cold Test. Electric pulp testing often needs to be supplemented with thermal tests to assess the health of the dental pulp. The Cold Test involves applying a cold substance, such as ice, carbon dioxide snow, or a commercial refrigerant, to the tooth. A response indicates that the sensory fibers in the pulp are functioning, whereas an absent or delayed response could suggest pulp necrosis or irreversible pulpitis.