 Although no systemic medication was prescribed, the patients were instructed to take mild analgesics 400 mg of ibuprofen, if they experienced pain. The assessment of postoperative pain was carried out at 12, 24, and 48 hours after initial appointment by one independent clinician blinded to the groups. All the participants were called by blinded operator through phone at 12, 24 and 48 h to obtain the pain scores using a 4-point pain intensity scale Dalton Orstavik et al. 1998. The presence or absence of pain, or the appropriate degree of pain was recorded by using a 4-point pain intensity scale. The pain categories were as follows: 