Dental cement and dental cement preparation kit

Dental cement, comprising:

• a composition that includes a polymerizable monomer (A), a filler (B), a chemical polymerization initiator (C), and a photopolymerization initiator (D), the dental cement being characterized in that
• a blending amount of the filler (B) is 50 to 500 parts by mass with respect to 100 parts by weight of the polymerizable monomer (A),
• a tertiary aromatic amine represented by the following general formula (1) is not substantially included,
• the chemical polymerization initiator (C) includes a hydroperoxide (c1):
• 0.2 to 3.5 parts by mass and a thiourea compound (c2) represented by the following general formula (2):
• 0.4 to 1.5 parts by mass,
• the photopolymerization initiator (D) includes an α-diketone (d1):
• 0.3 to 0.8 parts by mass and a photopolymerization accelerator (d2):
• 0.3 to 0.8 parts by mass, and
• a ratio of a content (parts by mass) of the α-diketone (d1) to a content (parts by mass) of the thiourea compound (c2) is 0.3 to 1.9
• (wherein, Ra and Rb each represent an alkyl group having 1 to 6 carbon atoms or a substituted alkyl group having 1 to 6 carbon atoms having a hydroxyl group, a nitro group, a sulfonic group, or a halogen atom as a substituent group, which may be different from each other, at least one of Ra or Rb represents the substituted alkyl group, Rc represents an alkyl group having 1 to 4 carbon atoms, and m represents an integer of 0 to 3),
• (wherein, R1, R2, and R3 each represent a hydrogen atom, an alkyl group, a cycloalkyl group, an aryl group, a heterocyclic group, an acyl group, an aralkyl group, or an alkenyl group, and R1 and R2 may be bonded to each other to form a ring).