Liquid filling method, and device for implementing the same method
A method of filling a narrow channel having a closed end with liquid comprises: filling the channel with vaporized volatile substance; and filling the channel having been filled with the volatile substance in a gaseous state with injection liquid by applying pressure. In the step of filling the channel with the vaporized volatile substance, air existing inside the channel is discharged to outside of the channel. In the step of filling the channel with the injection liquid, a condensation of the volatile substance in the gaseous state and a phase change into a liquid state occur by the applied pressure, volume of the volatile substance is reduced, and a space inside the channel having been occupied by the volatile substance in the gaseous state is filled with the injection liquid.
1 . A method of filling a narrow channel having a closed end with liquid comprising;
filling the channel with vaporized volatile substance; and
filling the channel having been filled with the volatile substance in a gaseous state with injection liquid by applying pressure,
wherein in the step of filling the channel with the vaporized volatile substance, air existing inside the channel is discharged to outside of the channel, and
wherein in the step of filling the channel with the injection liquid, a condensation of the volatile substance in the gaseous state and a phase change into a liquid state occur by the applied pressure, volume of the volatile substance is reduced, and a space inside the channel having been occupied by the volatile substance in the gaseous state is filled with the injection liquid.
2 . The method according to claim 1 , wherein the volatile substance is acetone.
3 . A liquid filling device for implementing the method according to claim 1 .
4 . The liquid filling device according to claim 3 , wherein the volatile substance is acetone.
5 . A method of filling a root canal with a filling material comprising:
filling the root canal with vaporized volatile substance; and
filling the root canal having been filled with the volatile substance in a gaseous state with the filling material by applying pressure,
wherein in the step of filling the root canal with the vaporized volatile substance, air existing inside the root canal is discharged to outside of the root canal, and
wherein in the step of filling the root canal with the filling material, a condensation of the volatile substance in the gaseous state and, a phase change into a liquid state occur by the applied pressure, volume of the volatile substance is reduced, and a space inside the root canal having been occupied by the volatile substance in the gaseous state is filled with the filling material.
6 . The method according to claim 5 , wherein the volatile substance is acetone.
7 . A root canal filling device for implementing the method according to claim 5 .
8 . The root canal filling device according to claim 7 , wherein the volatile substance is acetone.