الفهرس 
Effect of preoperative diclofenac potassium on articainebuccal infiltration success in mandibular molars with symptomatic irreversible pulpitis : A randomized controlled trial
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Abstract
Aim: The aim of this prospective, randomized, double-blind, clinical trial was to evaluate the effect of a preoperative, single, oral dose of diclofenac potassium (50 mg) on the anesthetic success of buccal infiltration with 4% articaine with epinephrine 1:200,000 in mandibular molars with symptomatic irreversible pulpitis.Methods: Sixty eight, endodontic emergency patients with symptomatic irreversible pulpitis (SIP) in mandibular molars, randomly received either 50 mg diclofenac potassium (group A, n=35) or placebo (group B, n=35) tablets 60 minutes before the initiation of endodontic therapy.The patient received a buccal infiltration (BI) with 4% articaine with epinephrine 1:200,000. Intraoperative pain intensity and incidence at the different pain categories (No, mild, moderate, severe) was assessed using Heft-Parker visual analogue scale (HP-VAS).Success of anesthesia defined as no or mild pain during endodontic treatment. Data were statistically analyzed and the significance level (Ü) was set at 0.05. Results: There was no significant difference between the two groups regarding the main baseline characteristics including: age, gender, pre-operative pain and canal-number distribution (p>0.05). Results showed no significant difference between both groups regarding intraoperative pain intensity, incidence and success of anesthesia (p >0.05)