Laila Sangi, Feroze Ali Kalhoro, Naresh Kumar, Muhammad Arif Shaikh.
Frequency of Interappointment Pain Observed with Sodiumhypochlorite and Hydrogen Peroxide based Root Canal.
J Pak Dent Assoc Jan ;20(4):211-5.

OBJECTIVE To compare the frequency of interappointment pain between 2.5% Sodium Hypochlorite and 3% Hydrogen Peroxide as a root canal irrigationmaterial. Design:Clinical trial. Setting: Study was conducted at Dental OPD, Liaquat University of Medical and Health Sciences, Jamshoro, Pakistan fromFebruary 2009 to July 2009. METHODOLOGY Sixty single-rooted, single-canal permanent teeth of sixty patients were selected randomly and equally divided in two groups. In groupA(n=30), 2.5%Sodiumhypochlorite (NaOCl)was used as an irrigation material while in group B (n=30), 3% Hydrogen peroxide (H2O2) was used. Canals were left empty for 72 hrs between visits. On second visit, interappointment pain was scored onVisualAnalogue Scale (VAS) (0= No pain,1- 3=mild, 4-6=moderate, 7-10= severe) by each patient on the proforma provided. RESULTS Interappointment pain was observed in 32/60 patients and the rest did not experience any pain. Pain was significantly high in group B thanA(70% vs. 36.7%; p=0.01). Severity of pain was also compared which was significantly high in group B than group A (p<0.012). Female experience more pain as compared to male.While correlation of agewith painwas not found (p>0.05). CONCLUSION NaOCl performed better clinically in terms of inter appointment pain when compared with H2O2.

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