The Schiff cold air sensitivity test

Air was delivered from a standard dental unit air syringe with a pressure of 60 psi and a temperature of 19–21°C. Air was directed at the exposed dentin surface of the sensitive tooth for one second. Cotton balls were used to isolate the adjacent teeth during the air blast to prevent inaccurate results. Each tooth was examined once. The Schiff cold air sensitivity scale [28] was used to evaluate the air blast hypersensitivity score, as follows: 0, the tooth/subject did not response to the air stimulus; 1, the tooth/subject responded to the air stimulus, but did not request suspension of the stimulus; 2, the tooth/subject responded to the air stimulus and asked to stop or remove the stimulus; 3, the tooth/subject responded to the air stimulus, which caused pain, and the subject requested discontinuation of the stimulus.