An electric pulp test (EPT) consists of the following: An electric pulp tester is placed on the tooth to be tested along with a drop of conducting paste. Usually the patient's saliva or toothpaste suffices as a conductor of electricity. The electric current is gradually increased until the patient signals a sensation, which consists of clicking or buzzing in the tooth. The test is repeated on neighboring teeth and often on the corresponding contralateral tooth. The lowest perceptible current is recorded for each tooth.