Table 4. Postoperative pain experienced after root canal treatment (RCT) using Thermafil obturation technique (TT). Patients (n = 61) completed a questionnaire containing a 10-cm visual analogue scale (VAS) (Huskisson 1974) to assess discomfort / pain at 2 and 6 hours and 1, 2, 3, 4, 5, 6 and 7 days after the RCT.