Frequency of interappointment pain observed with sodium hypochlorite and hydrogen perioxide based root canal irrigants

ABSTRACT

To compare the frequency of interappointment pain between 2.5% Sodium Hypochlorite and 3% Hydrogen Peroxide as a root canal irrigationmaterial. Clinical trial. Study was conducted at Dental OPD, Liaquat University of Medical and Health Sciences, Jamshoro, Pakistan from February 2009 to July 2009. Sixty single-rooted, single-canal permanent teeth of sixty patients were selected randomly and equally divided in two groups. In group A[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 on Visual Analogue Scale [VAS] [0= No pain,1- 3=mild, 4-6=moderate, 7-10= severe] by each patient on the proforma provided. Interappointment pain was observed in 32/60 patients and the rest did not experience any pain. Pain was significantly high in group B than A[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 age with pain was not found [p>0.05]. NaOCl performed better clinically in terms of interappointment pain when comparedwithH2O2