Cleaning the apical third of curved canals after different irrigation protocols

Brazilian Dental Journal

Érika Sales Joviano Pereira¹  Isabella Faria Da Cunha Peixoto¹  Rodrigo Keigo Lopes Nakagawa¹  Vicente Tadeu Lopes Buono¹  Maria Guiomar De Azevedo Bahia¹ 

[1] ,Federal University of Minas GeraisBelo Horizonte MG ,Brazil

关键词: endodontics;    root canal therapy;    irrigation;   

DOI  :  10.1590/S0103-64402012000400007

来源: SciELO

【 摘 要 】

This study evaluated the protocols of sonic and vacuum irrigation regarding the capacity of debris removal from root canal systems. Canal preparations were carried out on 30 mandibular first molars using the ProTaper Universal System. Teeth were divided into two experimental groups (n=15): Group 1: sonic irrigation and Group 2: vacuum irrigation protocol. Subsequently, the mesial roots were sectioned and observed by stereomicroscopy and scanning electron microscopy. Three independent examiners evaluated images of the apical thirds according to the following scores: 1= small presence of debris, 2= moderate presence of debris, and 3= dense presence of debris. Data were analyzed with ANOVA and Kruskal-Wallis tests (α=0.05). Comparison among the groups revealed that at the apical third, the root halves of Group 1 had significantly less surface debris (p=0.002) than those of Group 2. However, at 2 mm from the working length, Group 2's specimens showed less remaining debris in approximately 75% of the analyzed root canals. At the whole apical third, the sonic irrigation protocol removed significantly more debris than the vacuum protocol. However, in the region at 2 mm from the working length, the second irrigation method demonstrated a better performance.

【 授权许可】

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