TY - JOUR
T1 - Syringe irrigation in confluent canals
T2 - A sequential computational fluid dynamics assessment
AU - Rito Pereira, Mário
AU - Silva, Goncalo
AU - Semiao, Viriato
AU - Martins, Jorge N.R.
AU - Silverio, Vania
AU - Pascoal-Faria, Paula
AU - Duarte, Isabel
AU - Alves, Nuno
AU - Ginjeira, António
N1 - © 2023 Australian Society of Endodontology Inc.
PY - 2024/4
Y1 - 2024/4
N2 - This study aims to assess the influence of root canal preparation, irrigation needle design and its placement depth in the irrigation flow of confluent canals during syringe irrigation. A mandibular molar presenting two confluent canals in its mesial root was sequentially prepared and scanned by micro-computed tomography after mechanical preparation up to ProTaper Next system sizes X2 (25/.06v), X3 (30/.07v) and X4 (40/.06v). In each of the root canal preparation models, a side-vented and an open-ended needle at 5, 3 and 2 mm from the working length were included, and irrigation flow was assessed by a validated computational fluid dynamics model. The results revealed that the irrigant flowed out of the confluent canals mainly through the canal that did not have the needle. Apical penetration and renewal of the irrigant were most efficiently achieved with the use of a 30G open-ended needle and a 30/.07v preparation.
AB - This study aims to assess the influence of root canal preparation, irrigation needle design and its placement depth in the irrigation flow of confluent canals during syringe irrigation. A mandibular molar presenting two confluent canals in its mesial root was sequentially prepared and scanned by micro-computed tomography after mechanical preparation up to ProTaper Next system sizes X2 (25/.06v), X3 (30/.07v) and X4 (40/.06v). In each of the root canal preparation models, a side-vented and an open-ended needle at 5, 3 and 2 mm from the working length were included, and irrigation flow was assessed by a validated computational fluid dynamics model. The results revealed that the irrigant flowed out of the confluent canals mainly through the canal that did not have the needle. Apical penetration and renewal of the irrigant were most efficiently achieved with the use of a 30G open-ended needle and a 30/.07v preparation.
KW - computational fluid dynamics
KW - confluent root canals
KW - endodontics
KW - root canal irrigation
KW - syringe irrigation
KW - Syringes
KW - Hydrodynamics
KW - Root Canal Preparation
KW - X-Ray Microtomography
KW - Dental Pulp Cavity/diagnostic imaging
KW - Root Canal Irrigants
KW - Therapeutic Irrigation
UR - http://www.scopus.com/inward/record.url?scp=85174269536&partnerID=8YFLogxK
U2 - 10.1111/aej.12805
DO - 10.1111/aej.12805
M3 - Article
C2 - 37849412
AN - SCOPUS:85174269536
SN - 1329-1947
VL - 50
SP - 40
EP - 51
JO - Australian Endodontic Journal
JF - Australian Endodontic Journal
IS - 1
ER -