Iffat Raza, Alia Ahmed, Numra Khalid, Farwa Batool.
Effect of occlusal reduction on frequency of post operative pain relief, following an endodontic instrumentation.
Pak Oral Dental J Jan ;36(4):650-3.

Occlusal reduction has been widely used after root canal treatment to reduce post treatment pain and flare up. The objective of the present study was to compare the effect of occlusal reduction on frequency of post-operative pain relief, following an endodontic instrumentation in patients with irreversible pulpitis. A randomized controlled trial was conducted in the Out patients Department of Operative Dentistry, Islamic International Dental Hospital,Islamabad from August 2015 to January 2016. Hundred adult volunteers presented for endodontic treatment of vital teeth with history of irreversible pulpitis, tenderness to percussion, Moderate to severe pain and fulfilling the inclusion criteria. In the first appointment Biomechanical preparation of the canals were performed and the canals were dressed with calcium hydroxide paste before sealing the access cavity with a temporary restorative material. The patients were randomly divided into two groups, the occlusal reduction (OR) group and the no occlusal reduction (NOR) group with 50 patients in each group. The patients of both groups were instructed to complete the VAS at 24hrs after the procedure to rate their pain as mild, moderate or severe and were asked to bring the Performa along at the next scheduled appointment. All the data collected was entered and analyzed using statistical package for social sciences(SPSS version 10). Chi-square test was used for qualitative variable(frequency of post-operative pain ,gender) and independent sample T-test for quantitative variable(age). Results were statistically not significant (p>0.05) showing there was no effect of occlusal reduction on post-operative pain relief after endodontic instrumentation in patients with irreversible pulpitis.

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