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 int...

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Autores principales:	Qi Huang, Jonathan B. Barnes, G. John Schoeffel, Bing Fan, Candice Tay, Brian E. Bergeron, Lisiane F. Susin, Jun-qi Ling, Li-na Niu, Franklin R. Tay
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/19eaac90055e4ce7b350e7bab959ac7f
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spelling	oai:doaj.org-article:19eaac90055e4ce7b350e7bab959ac7f2021-12-02T12:32:57ZEffect of Canal Anastomosis on Periapical Fluid Pressure Build-up during Needle Irrigation in Single Roots with Double Canals using a Polycarbonate Model10.1038/s41598-017-01697-12045-2322https://doaj.org/article/19eaac90055e4ce7b350e7bab959ac7f2017-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-01697-1https://doaj.org/toc/2045-2322Abstract 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.Qi HuangJonathan B. BarnesG. John SchoeffelBing FanCandice TayBrian E. BergeronLisiane F. SusinJun-qi LingLi-na NiuFranklin R. TayNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-12 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Qi Huang Jonathan B. Barnes G. John Schoeffel Bing Fan Candice Tay Brian E. Bergeron Lisiane F. Susin Jun-qi Ling Li-na Niu Franklin R. Tay Effect of Canal Anastomosis on Periapical Fluid Pressure Build-up during Needle Irrigation in Single Roots with Double Canals using a Polycarbonate Model
description	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.
format	article
author	Qi Huang Jonathan B. Barnes G. John Schoeffel Bing Fan Candice Tay Brian E. Bergeron Lisiane F. Susin Jun-qi Ling Li-na Niu Franklin R. Tay
author_facet	Qi Huang Jonathan B. Barnes G. John Schoeffel Bing Fan Candice Tay Brian E. Bergeron Lisiane F. Susin Jun-qi Ling Li-na Niu Franklin R. Tay
author_sort	Qi Huang
title	Effect of Canal Anastomosis on Periapical Fluid Pressure Build-up during Needle Irrigation in Single Roots with Double Canals using a Polycarbonate Model
title_short	Effect of Canal Anastomosis on Periapical Fluid Pressure Build-up during Needle Irrigation in Single Roots with Double Canals using a Polycarbonate Model
title_full	Effect of Canal Anastomosis on Periapical Fluid Pressure Build-up during Needle Irrigation in Single Roots with Double Canals using a Polycarbonate Model
title_fullStr	Effect of Canal Anastomosis on Periapical Fluid Pressure Build-up during Needle Irrigation in Single Roots with Double Canals using a Polycarbonate Model
title_full_unstemmed	Effect of Canal Anastomosis on Periapical Fluid Pressure Build-up during Needle Irrigation in Single Roots with Double Canals using a Polycarbonate Model
title_sort	effect of canal anastomosis on periapical fluid pressure build-up during needle irrigation in single roots with double canals using a polycarbonate model
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/19eaac90055e4ce7b350e7bab959ac7f
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Effect of Canal Anastomosis on Periapical Fluid Pressure Build-up during Needle Irrigation in Single Roots with Double Canals using a Polycarbonate Model

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