Use of Calcium Hydroxide Iodoform Paste in Root Canal Therapy

Objective To compare the disinfective effects of calcium hydroxide iodoform paste and calcium hydroxide paste for root canal preparation.Methods Diseased teeth(n=234) from 189 patients were equally divided into two treatment arms following the routine root canal preparation,namely one-week calcium hydroxide iodoform paste treatment group(n=117) and one-week calcium hydroxide paste treatment group(n= 117).All the patients were followed up to observe the occurrences of acute symptoms at various times.Results The effective rates of the treatment group were 88.9%,92.3%,and 97.9%,respectively.In contrast,those of the control group were 74.4%,85.1%,and 91.9%,respectively(P0.05).Conclusion Calcium hydroxide iodoform paste has a better root canal disinfective outcome and less acute symptom following root canal preparation.