Kuraray Noritake Dental Inc.

Masashi Inoue

Kenji Suzuki

Kenji Hatanaka

Hiroshige Ishino

Hirotaka Horiguchi

Tatsuya Kajikawa

Takehiro Kameya

Hayato Miyakawa

Seiya Ichikawa

Shogo Hiramatsu

Makoto Ikeda

A dental restorative curable compositions may have a high mechanical strength and excellent water resistance and polishability in the form of a cured product. A dental composite resin may include such compositions. A dental mill blank may include the cured product of such compositions. A dental restorative curable composition may include: a (meth)acrylic acid ester compound (A) having two or more (meth)acryloyloxy groups per molecule; a mono(meth)acrylic acid ester compound (B); an inorganic filler (C) having an average primary particle diameter of 0.01 to 5 μm; and a polymerization initiator (D). The mono(meth)acrylic acid ester compound may include at least one selected from the group consisting of a mono(meth)acrylic acid ester compound (B-1) of formula (I): anda mono(meth)acrylic acid ester compound (B-2) of formula (II):

Dental restorative curable composition

The present invention provides a dental mill blank that exhibits desirable resistance against wear in opposing teeth. The present invention relates to a dental mill blank comprising: Preferably, the dental mill blank comprises an island component containing the aggregate, and a sea component containing the inorganic filler (A) and the inorganic filler (B).

Dental mill blank and method for producing same

The present invention provides a method that enables production of a surface-treated colored inorganic particle with which the desired color tone can be consistently reproduced as intended with no variation occurring in the color tone of the compositions produced with the particle, within each production and over multiple production runs. The invention relates to a method for producing a surface-treated colored inorganic particle, comprising spray drying a mixture of a dispersion [I] and a solution [II], wherein the dispersion [I] is a dispersion of inorganic particles having an average particle diameter of 0.005 to 5 &#x3bc;m dispersed in a solvent with a pigment, and the solution [II] is a solution of a surface treatment agent hydrolyzed in the presence of a hydrolysis aid.

Method for producing surface-treated colored inorganic particles

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Niigata, Japan

Masashi Inoue