The clinical and radiological success of primary non-surgical endodontic treatment in smoker & nonsmoker patients will be compared between both groups and smoking cessation effect on periapical healing will be assessed.~The correlation between the self-reported smoking status & smoking status by urine analysis
Goal of this prospective observational study is determine effect of smoking on periapical healing after NSRCT. Population includes systemically healthy smokers with radiographic evidence of apical periodontitis will be recruited and compared with same type of population of non smokers after non surgical root canal treatment intervention in both the groups. Outcome will be assessed using periapical index scoring system at 6 and 12 months follow up period