Figure 1.

Flow chart describing the number of patients and teeth receiving index- and reference tests, and the frequencies of test results.

The specific questions in the study questionnaires that were answered by the dentists after performing the tests were:

Index test 1: “Did the tooth respond to cold testing? Yes/No”

Index test 2: “Was the tooth tender to percussion? Yes/No”

Reference standard: “Was bleeding present within the pulp chamber? Yes/No”