Diclofenac group, which received diclofenac 50 mg capsules (Cataflam) and placebo sprays. Placebo sprays have consisted of a normal saline solution and peppermint flavor.

Flurbiprofen group, which received flurbiprofen 100 mg capsules and placebo sprays. Placebo sprays have consisted of a normal saline solution and peppermint flavor.

Benzydamine group, which received benzydamine 0.045 g, 30 mL oral sprays (Tantum Verde) and placebo capsules. Placebo capsules contained starch.

All patients were instructed to take one capsule orally every 8 h and apply the spray (4 puffs to the pericoronitis area) every 4 h for 7 days, commencing immediately after the clinical examination.

For the pre- treatment period, the Oral Health-Related Quality of Life scores change was evaluated in the 1st day after the clinical examination and before the treatment with the help of the 5-point Likert-type scale where each item was scored from 1 (no trouble) to 5 (lots of trouble).

For the post - treatment period, the Oral Health-Related Quality of Life scores change was evaluated with the help of the 5-point Likert-type scale where each item was scored from 1 (no trouble) to 5 (lots of trouble). Evaluated periods were 1, 2, 3, 5 and 7 days

For the pre-treatment period, the pain scores change was evaluated in the 1st day after the clinical examination and before the treatment with the help of the visual analog scale (VAS) ranging from 0 (no pain) to 10 (most severe pain).

Before and after the treatment period, the Oral Health Impact Profile scores change was evaluated in the 1st day after the clinical examination and before the treatment (baseline), and after 7 days with the help of the 5-point scale where each item was scored from "never" = 0, "hardly ever" = 1, "occasionally" = 2, "fairly often" = 3, "very often = 4"