Sample and randomization
pulpitis
HEAT, PULPITIS, COLD
In selecting the teeth, pulp sensibility tests (cold test, heat test, and electric pulp test) were performed by A.S.M to confirm the diagnosis of irreversible pulpitis. In the cold test, a cold spray containing 1,1,1,2 tetrafluoroethane was sprayed on a large cotton ball (#2) and placed in the middle area of the buccal surface of the mandibular molars (Jones et al., Based on the results of the study by Mostafa et al. (





For each patient, one of the six groups was randomly selected. They were also written on the syringes. The syringes containing the irrigation solutions were covered with a layer of opaque coating. Each patient selected a sheet and based on the selected number, the researcher used one of the solutions for that patient. Researchers and patients did not know the contents of the syringe, and only the person who prepared the solutions and had no role in the clinical process did. Keeping the solutions at the desired temperature was controlled by the person who prepared them without the researcher or patient knowing their contents. Thus, neither the patient nor the researcher was aware of the type of treatment of choice, and the study was conducted as a double‐blind study.