Clinical effects of Nickel titanium instrument combined with ultrasonic irrigation in root canal retreatment
WANG Xiao-hua
WANG Xia
Abstract：AIM:To evaluate the clinic effects of Nickel-Titanium instrument combined with ultrasonic irrigation in one-visit root canal retreatment.METHODS:68 single-canal teeth with root canal treatment failure and diagnosed as chronic periapical periodontitis in 60 cases aged 17-49 years were prepared by Ni-Ti rotary instrument and irrigated by ultrasonic equipment,then the teeth were randomly divided into one-visit group(n =36) and two-visit group(n =32).Verbal Rating Scale (VRS)was used to record the post-treatment pain 1 week after root canal filling.The effective rate of the 2 groups were evaluated 1 year after treatment.RESULTS:1 week after root canal filling,post-treatment pain was found in 4 cases in one-visit group and 2 cases in two-visit group (P ＞ 0.05).In the 1-year followup 5 out of 25 cases were failed in one-visit group and 4 out of 26 cases in two-visit group (P ＞ 0.05).CONCLUSION:Ni-Ti rotary instrument and ultrasonic irrigation were feasible for one-visit root canal retreatment.
Keywords：endodontic retreatmentone-visit root canal treatmentNi-Ti instrumentsultrasonic irrigation
Publication Date：2017-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 532-535 )