[Problem] To provide a tooth crown restoration material that enables a tooth crown to be attached/detached and restricts the rotation of the tooth crown. [Solution] This tooth restoration material 1, which attaches a tooth crown 2 to a fitting target part 3 which is a predetermined part, is provided with: a first inner crown 4 attached to the fitting target part 3 side; a second inner crown 5 fitted to the first inner crown 4 from above; a recessed part 10 formed in the first inner crown 4; and a protruding part 22 that is formed in the second inner crown 5 and is engageable to the recessed part 10, wherein when the second inner crown 5 is completely fitted to the first inner crown 4 so that the recessed part 10 and the protruding part 22 engage with each other, the horizontal rotation and the vertical detachment of the second inner crown 5 with respect to the first inner crown 4 can be restricted.
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