Sharaz Ahmed, Alia Ahmed, Maria Sikander.
Comparison Of Post Operative Pain Frequency After Single Visit And Multiple Visits Root Canal Treatment With Rotary Instruments On Non-Vital Teeth.
Pak Oral Dental J Jan ;37(1):158-60.

Endodontic treatment is traditionally performed in multiple visits however, single-visit treatment has gained acceptance due to recent invention of nickel-titanium systems and improvement in irrigation and disinfection techniques. The objective of this study was to compare the frequency and severity of post-obturation pain after one-visit and two-visit root canal treatment on permanent teeth with non-vital pulps. Four hundred forty patients were divided into group 1 and 2. Single visit treatment was done in group 1 patients and two-visit treatment was performed in group 2 patients. Verbal descriptor scale (VDS) was used to measure post-operative pain. Mean pain score was 1.94 and 1.53 in group 1 and 2 respectively. The result was statistically insignificant.

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