Efficacy of different irrigation needles used in endodontics: an <i>in silico</i> and an <i>in vitro</i> investigation.

ABSTRACT:

Objective

Irrigation is a clinical procedure in which needles of various designs, attached to syringes, are delivered by positive pressure to cleanse the root canals of infection-promoting agents. Despite being available in multiple designs and different materials, the irrigant does not necessarily reach every portion of the canal. This study compared four different needle designs in terms of depth of penetration of the needle (DOP), wear of the needle and fluid dynamics of the irrigant (FD).

Methods

Stereolithography was used to manufacture four 3D-printed single-rooted mandibular premolars with double curvature. The four needle designs used were Group I (NiTi open-ended, notched needle tip), Group II (Stainless steel, single-sided vented needle tip), Group III (Stainless s

SUBMITTER: Shetha M 

PROVIDER: S-EPMC12742222 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature