	US 11,737,956 B2
	Composition for intracanal medication
Sung Wook Jang, Seoul (KR)
Assigned to MARUCHI
Appl. No. 16/462,581
Filed by MARUCHI, Wonju-si (KR)
PCT Filed Nov. 21, 2017, PCT No. PCT/KR2017/013298 § 371(c)(1), (2) Date Jul. 9, 2019, PCT Pub. No. WO2018/093239, PCT Pub. Date May 24, 2018.
Claims priority of application No. 10-2016-0155276 (KR), filed on Nov. 21, 2016.
Prior Publication US 2020/0060947 A1, Feb. 27, 2020
Int. Cl. A61K 6/00 (2020.01); A61K 6/853 (2020.01); A61K 6/54 (2020.01); A61K 6/76 (2020.01); A61K 6/869 (2020.01); A61K 6/73 (2020.01); A61K 6/69 (2020.01); A61K 6/56 (2020.01); A61K 6/80 (2020.01)

CPC A61K 6/853 (2020.01) [A61K 6/54 (2020.01); A61K 6/56 (2020.01); A61K 6/69 (2020.01); A61K 6/73 (2020.01); A61K 6/76 (2020.01); A61K 6/80 (2020.01); A61K 6/869 (2020.01)]

10 Claims

1. A method for treating a root canal using a calcium hydroxide component-based composition as intracanal medication,

wherein the composition comprises:

calcium hydroxide or a calcium hydroxide producing component as a powder component; and

at least one of dimethyl sulfoxide (DMSO), N-methyl-2-pyrrolidone (NMP) and diethylene glycol monoethyl ether (DEGEE) as a liquid component,

wherein the at least one of the DMSO, NMP and DEGEE is included at 70% or more of weight of liquid components of the composition, and

wherein the method comprises the steps of:

injecting the composition into a root canal such that the at least one of the DMSO, NMP and DEGEE acts in conjunction with hydroxyl ions produced by the calcium hydroxide to peel off a biofilm or smear layer in the root canal; and

removing the composition from the root canal after a predetermined period of time.