Importance

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Abstract

A nozzle for insertion into a tooth root canal, which can be inserted into the depths of the root canal, which enables a sufficient amount of fluid to be allowed to flow through it per unit time, and which can be easily produced, and a device for treating a tooth root canal, provided with the nozzle. A treating device (1) has an injection device (10) and a discharge device (20). The injection device (10) has a treatment liquid receiving container (14) and also has a supply nozzle (11) communicating with the treatment liquid receiving container (14) through a supply tube (13). The discharge device (20) has a suction nozzle (21) inserted from one end into a tooth root canal (610), a discharge tube (22) connected to the other end of the suction nozzle (21), a discharge pump (23) provided in the middle of the discharge tube (22), and a waste liquid receiving container (24) communicating with the suction nozzle (21) through the discharge pump (23). The suction nozzle (21) has a substantially circular tube-like body section having a predetermined dimension and a substantially circular tube-like extension section extending from the forward end of the body section, having a smaller outer diameter than the body section, and having a predetermined dimension.

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First Claim