PURPOSE: To obtain a pasty tacky root canal-filling material for using dental curing by joining a compound giving tackiness, a compound giving elasticity and flexibility, a curing agent, a compound having tackiness and an action of suppressing hyperesthesia and an antibacterial monomer.
CONSTITUTION: This tacky root canal-filling material for dentistry is composed of 20-60 pts.wt. of a monomer expressed by formula I (R1 is H or CH3; R2 is -OCH2CH2OH or -OCH2CH2CH2OH), 20-60 pts.wt. of a monomer of formula II [R3 is -(OCH2CH2)m-OCH3 ((m) is 9-23)], 5-30 pts.wt. of a monomer of formula III ((n) is 14-23), 0-10 pts.wt. of a monomer of formula IV, 0-10 pts.wt. of a monomer of formula V and 0-50 pts.wt. of ethanol or water (total amount of the monomers of the formula I-the formula V is 100 pts.wt.). As the compound expressed by the formula IV is preferably N-methacryloyl-5-aminosalicylic acid. As the compound of the formula V is preferably N-methacryloyl-3- aminophenylboric acid. Furthermore, an X-ray contrast medium or a polymerization initiator is preferably added.
MASUHARA NAOTO
TARUMI JIRO
