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Quintessence Publishing: Journals: ENDO

 

ENDO - Endodontic Practice Today

Edited by Bun San Chong and Edgar Schäfer

Official Publication of the Belgian Association for Endodontology and Traumatology (BAET) and the French Society of Endodontics (SFE)

ISSN (print) 1753-2809 • ISSN (online) 1753-2817

Publication:

Spring 2020
Volume 14 , Issue 1



Pages: 43–51
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Effect of different root canal instruments on removal of endotoxins from necrotic root canals: a randomised clinical trial

Marwa Mahmoud Bedier, Heba Ahmed El-Asfouri, Olfat Shaker

Objectives: The present randomised clinical study aimed to evaluate the effect of OneShape and ProTaper Next rotary systems on the removal of endotoxins from root canals of teeth with asymptomatic necrotic pulp.

Materials and methods: 30 patients were randomly allocated into two groups (n = 15) according to the type of rotary system used in the mechanical preparation: group OneShape (OS) or group ProTaper Next (PN). Samples were collected before and after mechanical preparation and the quantification of endotoxins was conducted using the human enzyme-linked immunosorbent assay (ELISA) kit. Statistical analyses were performed using the Mann-Whitney U test to compare the two groups, and the Wilcoxon signed rank test to study the changes after treatment within each group. The significance level was set at P ≤ 0.05.

Results: The group OS showed a statistically significant reduction in the endotoxin levels after treatment (P < 0.001, effect size = 0.880). In the PN group there was a statistically significant reduction in endotoxin levels after treatment (P < 0.001, effect size = 0.931). In the OS group a statistically significant median percentage reduction in endotoxin levels was observed compared with the group PN (P < 0.05).

Conclusions: ProTaper Next was more effective than OneShape in reducing endotoxins from root canals of teeth with asymptomatic necrotic pulp.

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