Table 7.

The clinical trial study evaluating post operative pain after PSP

Author (Year)	Sample size (N)	Prescribed analgesics	System of preparation/ Apical size	Filling material/ Obturation technique	PSP method	Postoperative pain evaluation	Time of immediate PSP	Time of delayed PSP	utcome
Eyuboglu et al. (2020) [11]	100	(naproxen sodium, 550 mg) at the end of the first appointment	2Shape rotary system/ TS2 (#25/.06) or 2Shape F35 (#35/.06)	GP /calcium silicate-based root canal sealer / Single cone	fiber post drills	An electronic pain rating scale program + (VAS) in 1, 2, 3 days and 1 week after the first visit	first-visit: immediately	second-visit :at least 1 W	1-visit > 2-visits

G, group, GP gutta-percha, imm Immediate, PSP post space preparation, VAS visual analogue scale, W week, - ; similar outcome