Eghbal MJ, Haeri A, Shahravan A, Kazemi A, Moazami F, Mozayeni MA, Saberi E, Samiei M, Vatanpour M, Akbarzade Baghban A, Fazlyab M, Parhizkar A, Ahmadi M, Akbarian Rad N, Bijari S, Bineshmarvasti D, Davoudi P, Dehghan R, Dehghani M, Ebrahimi H, Emami N, Farajian N, Fereidooni R, Ghobadi G, Ghodrati M, Gohari A, Hashemi A, Hosseini M, Karami E, Kheirabadi N, Kozegari S, Labaf Ghasemi H, Majidi A, Malekzadeh P, Mehrabi V, Mohammadi M, Moradi Eslami L, Noghani A, Omatali N, Pourhatami N, Rahbani Nobar B, Rahmani S, Shafaq P, Soofiabadi S, Teimoori S, Vatandoost F, and Asgary S
This equivalence, randomized, clinical trial aimed to compare the postoperative pain of root canal therapy (RCT) with pulpotomy with mineral trioxide aggregate (PMTA) or calcium-enriched mixture (PCEM) in permanent mature teeth. In seven academic centers, 550 cariously exposed pulps were included and randomly allocated into PMTA ( n = 188), PCEM ( n = 194), or RCT ( n = 168) arms. Preoperative "Pain Intensity" (PI) on Numerical Rating Scale and postoperative PIs until day 7 were recorded. Patients' demographic and pre-/intra-/postoperative factors/conditions were recorded/analysed. The arms were homogeneous in terms of demographics. The mean preoperative PIs were similar ( P =0.998), the mean sum PIs recorded during 10 postoperative intervals were comparable ( P =0.939), and the trend/changes in pain relief were parallel ( P =0.821) in all study arms. The incidences of preoperative moderate-severe pain in RCT, PMTA, and PCEM arms were 56.5%, 55.7%, and 56.7%, which after 24 hours considerably decreased to 13.1%, 10.6%, and 12.9%, respectively ( P =0.578). The time span of endodontic procedures was statistically different; RCT = 69.73, PMTA = 35.37, and PCEM = 33.62 minutes ( P < 0.001). Patients with greater preoperative pain, symptomatic apical periodontitis, or presence of PDL widening suffered more pain ( P =0.002, 0.035, and 0.023, resp.); however, other pre-/intra-/postoperative factors/conditions were comparable. Pulpotomy with MTA/CEM and RCT demonstrate comparable and effective postoperative pain relief., Competing Interests: Saeed Asgary is the inventor of CEM cement (Endodontic Filling Material, USA, 7,942,961, 17 May, 2011). All other authors declare that there are no conflicts of interest regarding the publication of this paper., (Copyright © 2020 Mohammad Jafar Eghbal et al.)