Patent ID: 8827705

Claim:
A method for evacuating a root canal of a tooth, said tooth having a coronal end with an open access cavity and an apex end, comprising: placing a master delivery tip over said open access cavity, said master delivery tip being configured to deliver a fluid to and to evacuate said fluid from said coronal end of said tooth; delivering said fluid to said open access cavity at said coronal end using said master delivery tip; inserting a cannula through said open access cavity; evacuating said fluid from said root canal through said cannula; removing said cannula from said open access cavity; inserting a microcannula through said open access cavity such that a tip of said microcannula is positioned near the apex end of said root canal; and evacuating said fluid near the apex end through said microcannula such that said fluid flushes said root canal before being evacuated through said microcannula, wherein after delivering said fluid to said open access cavity and before evacuating said fluid through said microcannula, the method further comprises evacuating a coronal portion of the root canal through said master delivery tip to maintain a constant level of fluid in the root canal access cavity.