Effect of Canal Anastomosis on Periapical Fluid Pressure Build-up during Needle Irrigation in Single Roots with Double Canals using a Polycarbonate Model

Qi Huang, Jonathan B. Barnes, G. John Schoeffel, Bing Fan, Candice Tay, Brian Edward Bergeron, Lisiane Ferreira Susin, Jun Qi Ling, Li Na Niu, Franklin Chi Meng Tay

Research output: Contribution to journalArticle

Abstract

Sodium hypochlorite is an effective irrigant for chemical debridement of root canals. However, increasing the intracanal pressure during irrigant delivery may result in irrigant extrusion into the bone and soft tissues surrounding the tooth. Because clinicians often encounter teeth with intracanal communications, the objective of the present study was to examine the effects of canal anastomosis on the generation of periapical fluid pressure at different fluid flow rates and insertion depths. Two similar polycarbonate models were used to simulate a single root with double canals, one containing, and the other without communicating channels between the canals. For both models, periapical pressure increased with increasing irrigant flow rates and insertion depths of a 30-gauge side-venting needle. In the presence of communicating channels, the magnitude of pressure build-up decreased by almost 90% irrespective of the fluid flow rate or needle insertion depth. Pressure reduction in anastomoses-containing roots provides an explanation why pressure generation in single roots is considerably higher. Nevertheless, it is still possible in teeth with canal anastomoses for pressure exceeding the intraosseous pressure to be generated when the fluid flow rate is sufficiently high and when the needle tip is close to the apical terminus.

Original languageEnglish (US)
Article number1582
JournalScientific Reports
Volume7
Issue number1
DOIs
StatePublished - Dec 1 2017

Fingerprint

Canals
Polycarbonates
Irrigation
Needles
Fluids
Flow rate
Flow of fluids
Gages
Extrusion
Bone
Sodium
Tissue
Communication

ASJC Scopus subject areas

  • General

Cite this

Effect of Canal Anastomosis on Periapical Fluid Pressure Build-up during Needle Irrigation in Single Roots with Double Canals using a Polycarbonate Model. / Huang, Qi; Barnes, Jonathan B.; Schoeffel, G. John; Fan, Bing; Tay, Candice; Bergeron, Brian Edward; Ferreira Susin, Lisiane; Ling, Jun Qi; Niu, Li Na; Tay, Franklin Chi Meng.

In: Scientific Reports, Vol. 7, No. 1, 1582, 01.12.2017.

Research output: Contribution to journalArticle

Huang, Qi ; Barnes, Jonathan B. ; Schoeffel, G. John ; Fan, Bing ; Tay, Candice ; Bergeron, Brian Edward ; Ferreira Susin, Lisiane ; Ling, Jun Qi ; Niu, Li Na ; Tay, Franklin Chi Meng. / Effect of Canal Anastomosis on Periapical Fluid Pressure Build-up during Needle Irrigation in Single Roots with Double Canals using a Polycarbonate Model. In: Scientific Reports. 2017 ; Vol. 7, No. 1.
@article{45d9c6bb79c043db9bf6f8943f701069,
title = "Effect of Canal Anastomosis on Periapical Fluid Pressure Build-up during Needle Irrigation in Single Roots with Double Canals using a Polycarbonate Model",
abstract = "Sodium hypochlorite is an effective irrigant for chemical debridement of root canals. However, increasing the intracanal pressure during irrigant delivery may result in irrigant extrusion into the bone and soft tissues surrounding the tooth. Because clinicians often encounter teeth with intracanal communications, the objective of the present study was to examine the effects of canal anastomosis on the generation of periapical fluid pressure at different fluid flow rates and insertion depths. Two similar polycarbonate models were used to simulate a single root with double canals, one containing, and the other without communicating channels between the canals. For both models, periapical pressure increased with increasing irrigant flow rates and insertion depths of a 30-gauge side-venting needle. In the presence of communicating channels, the magnitude of pressure build-up decreased by almost 90{\%} irrespective of the fluid flow rate or needle insertion depth. Pressure reduction in anastomoses-containing roots provides an explanation why pressure generation in single roots is considerably higher. Nevertheless, it is still possible in teeth with canal anastomoses for pressure exceeding the intraosseous pressure to be generated when the fluid flow rate is sufficiently high and when the needle tip is close to the apical terminus.",
author = "Qi Huang and Barnes, {Jonathan B.} and Schoeffel, {G. John} and Bing Fan and Candice Tay and Bergeron, {Brian Edward} and {Ferreira Susin}, Lisiane and Ling, {Jun Qi} and Niu, {Li Na} and Tay, {Franklin Chi Meng}",
year = "2017",
month = "12",
day = "1",
doi = "10.1038/s41598-017-01697-1",
language = "English (US)",
volume = "7",
journal = "Scientific Reports",
issn = "2045-2322",
publisher = "Nature Publishing Group",
number = "1",

}

TY - JOUR

T1 - Effect of Canal Anastomosis on Periapical Fluid Pressure Build-up during Needle Irrigation in Single Roots with Double Canals using a Polycarbonate Model

AU - Huang, Qi

AU - Barnes, Jonathan B.

AU - Schoeffel, G. John

AU - Fan, Bing

AU - Tay, Candice

AU - Bergeron, Brian Edward

AU - Ferreira Susin, Lisiane

AU - Ling, Jun Qi

AU - Niu, Li Na

AU - Tay, Franklin Chi Meng

PY - 2017/12/1

Y1 - 2017/12/1

N2 - Sodium hypochlorite is an effective irrigant for chemical debridement of root canals. However, increasing the intracanal pressure during irrigant delivery may result in irrigant extrusion into the bone and soft tissues surrounding the tooth. Because clinicians often encounter teeth with intracanal communications, the objective of the present study was to examine the effects of canal anastomosis on the generation of periapical fluid pressure at different fluid flow rates and insertion depths. Two similar polycarbonate models were used to simulate a single root with double canals, one containing, and the other without communicating channels between the canals. For both models, periapical pressure increased with increasing irrigant flow rates and insertion depths of a 30-gauge side-venting needle. In the presence of communicating channels, the magnitude of pressure build-up decreased by almost 90% irrespective of the fluid flow rate or needle insertion depth. Pressure reduction in anastomoses-containing roots provides an explanation why pressure generation in single roots is considerably higher. Nevertheless, it is still possible in teeth with canal anastomoses for pressure exceeding the intraosseous pressure to be generated when the fluid flow rate is sufficiently high and when the needle tip is close to the apical terminus.

AB - Sodium hypochlorite is an effective irrigant for chemical debridement of root canals. However, increasing the intracanal pressure during irrigant delivery may result in irrigant extrusion into the bone and soft tissues surrounding the tooth. Because clinicians often encounter teeth with intracanal communications, the objective of the present study was to examine the effects of canal anastomosis on the generation of periapical fluid pressure at different fluid flow rates and insertion depths. Two similar polycarbonate models were used to simulate a single root with double canals, one containing, and the other without communicating channels between the canals. For both models, periapical pressure increased with increasing irrigant flow rates and insertion depths of a 30-gauge side-venting needle. In the presence of communicating channels, the magnitude of pressure build-up decreased by almost 90% irrespective of the fluid flow rate or needle insertion depth. Pressure reduction in anastomoses-containing roots provides an explanation why pressure generation in single roots is considerably higher. Nevertheless, it is still possible in teeth with canal anastomoses for pressure exceeding the intraosseous pressure to be generated when the fluid flow rate is sufficiently high and when the needle tip is close to the apical terminus.

UR - http://www.scopus.com/inward/record.url?scp=85019130173&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85019130173&partnerID=8YFLogxK

U2 - 10.1038/s41598-017-01697-1

DO - 10.1038/s41598-017-01697-1

M3 - Article

VL - 7

JO - Scientific Reports

JF - Scientific Reports

SN - 2045-2322

IS - 1

M1 - 1582

ER -