The invention relates to magnesium reinforcements and magnesium-reinforced barrier membranes for use in biomedical applications, such as dental, craniofacial and orthopedic applications. The magnesium reinforcements and barrier membranes are composed of a biodegradable, magnesium/polymer composite. They can be used in a wide variety of applications, such as, but not limited to, vertical and horizontal ridge augmentation, guided bone/tissue regeneration, periodontal bone regeneration, fracture fixation and orthopedic and spinal bone grafting applications; as well as in general surgery (hernia repair) and urogynecological surgery.

[Problem]

To provide a dental resin-reinforced glass ionomer cement kit which can exhibit high adhesive property to tooth substance by a simple procedure without complicated operations and contains a dental tooth surface treatment material composition and a dental resin-reinforced glass ionomer cement composition.

[Solution]

To provide a dental resin-reinforced glass ionomer cement kit comprising a dental tooth surface treatment material composition (i) and a dental resin-reinforced glass ionomer cement composition (ii), wherein the dental tooth surface treatment material composition (i) contains (A) water-soluble organic solvent: 20% by mass or more and 79% by mass or less. (B) water: 20% by mass or more and 79% by mass or less, and (C) polymerizable monomer having acid anhydride structure: 1% by mass or more and 30% by mass or less, and the dental resin-reinforced glass ionomer cement composition (ii) contains (D) acid-reactive glass powder, (B) water, (E) polymer of acidic group-containing polymerizable monomer, (F) tri or more functional (meth)acrylamide-based polymerizable monomer, (G) hydroxyl group-containing (meth)acrylate-based polymerizable monomer, and (H) polymerization initiator.

[Problem]

To provide a dental resin-reinforced glass ionomer cement kit which can exhibit high adhesive property to tooth substance by a simple procedure without complicated operations and contains a dental tooth surface treatment material composition and a dental resin-reinforced glass ionomer cement composition.

[Solution]

To provide a dental resin-reinforced glass ionomer cement kit comprising a dental tooth surface treatment material composition (i) and a dental resin-reinforced glass ionomer cement composition (ii), wherein the dental tooth surface treatment material composition (i) contains (A) water-soluble organic solvent: 20% by mass or more and 79% by mass or less. (B) water: 20% by mass or more and 79% by mass or less, and (C) polymerizable monomer having acid anhydride structure: 1% by mass or more and 30% by mass or less, and the dental resin-reinforced glass ionomer cement composition (ii) contains (D) acid-reactive glass powder, (B) water, (E) polymer of acidic group-containing polymerizable monomer, (F) tri or more functional (meth)acrylamide-based polymerizable monomer, (G) hydroxyl group-containing (meth)acrylate-based polymerizable monomer, and (H) polymerization initiator.

Dental composition comprising (a) at least two di- or polyepoxides having 2 to 5 epoxide groups and having a molecular weight of from 200 to 700 Da, or a macromonomeric reaction product obtainable by reacting the diepoxide with a dicarboxylic acid in a molar ratio [diepoxide]/[dicarboxylic acid] of at least 2; (b) one or more primary monoamines and/or disecondary diamines; (c) optionally one or more aliphatic polyamines; (d) a particulate filler, wherein the molar ratio of epoxide groups in component (a) to the NH bonds in component (b) and (c) [epoxide.sub.(a)]/[NH.sub.(b),(c)] is in the range of from 0.9 to 1.1; wherein the di- or polyepoxide having 2 to 5 epoxide groups is a compound of the following formula (I):

A(BZ.sub.m).sub.n (I) wherein A represents an n-valent organic moiety optionally having 1 to 10 heteroatoms selected from oxygen atoms and sulfur atoms; and B represents an m+1-valent organic moiety, Z is an epoxide group which may have a substituent, m which are independent from each other represent an integer of at least 1; and n is an integer of from 1 to 5; wherein the m are selected so that 2 to 5 epoxide groups are present; wherein the composition does not contain any 2,2-bis-(4-hydroxyphenyl)-propane, or 2,2-bis-(4-hydroxyphenyl)-methane.

Dental composition comprising (a) at least two di- or polyepoxides having 2 to 5 epoxide groups and having a molecular weight of from 200 to 700 Da, or a macromonomeric reaction product obtainable by reacting the diepoxide with a dicarboxylic acid in a molar ratio [diepoxide]/[dicarboxylic acid] of at least 2; (b) one or more primary monoamines and/or disecondary diamines; (c) optionally one or more aliphatic polyamines; (d) a particulate filler, wherein the molar ratio of epoxide groups in component (a) to the NH bonds in component (b) and (c) [epoxide.sub.(a)]/[NH.sub.(b),(c)] is in the range of from 0.9 to 1.1; wherein the di- or polyepoxide having 2 to 5 epoxide groups is a compound of the following formula (I):

A(BZ.sub.m).sub.n (I) wherein A represents an n-valent organic moiety optionally having 1 to 10 heteroatoms selected from oxygen atoms and sulfur atoms; and B represents an m+1-valent organic moiety, Z is an epoxide group which may have a substituent, m which are independent from each other represent an integer of at least 1; and n is an integer of from 1 to 5; wherein the m are selected so that 2 to 5 epoxide groups are present; wherein the composition does not contain any 2,2-bis-(4-hydroxyphenyl)-propane, or 2,2-bis-(4-hydroxyphenyl)-methane.

A polymerizable compound is represented by the formula (I). Each R.sup.1 independently represents a monovalent group having from 3 to 12 carbon atoms that comprises at least one of an epoxy group, an acryl group, or a methacryl group. Each R.sup.2 independently represents H, F, Cl, Br, C.sub.1-C.sub.12 alkyl, C.sub.2-C.sub.3 carbonylalkyl, or C.sub.2-C.sub.5 carboalkoxy. Each R.sup.3 independently represents H, F, Cl, Br, C.sub.1-C.sub.12 alkyl, C.sub.2-C.sub.3 carbonylalkyl, or C.sub.2-C.sub.5 carboalkoxy. Each n is independently 0, 1, 2, 3, or 4. Curable compositions including the polymerizable compound are also disclosed. ##STR00001##

A polymerizable compound is represented by the formula (I). Each R.sup.1 independently represents a monovalent group having from 3 to 12 carbon atoms that comprises at least one of an epoxy group, an acryl group, or a methacryl group. Each R.sup.2 independently represents H, F, Cl, Br, C.sub.1-C.sub.12 alkyl, C.sub.2-C.sub.3 carbonylalkyl, or C.sub.2-C.sub.5 carboalkoxy. Each R.sup.3 independently represents H, F, Cl, Br, C.sub.1-C.sub.12 alkyl, C.sub.2-C.sub.3 carbonylalkyl, or C.sub.2-C.sub.5 carboalkoxy. Each n is independently 0, 1, 2, 3, or 4. Curable compositions including the polymerizable compound are also disclosed. ##STR00001##

The photocationically curable composition of the present invention contains a cationically polymerizable monomer (a), a photo acid generator (b), a photosensitizer (c), and a thiophene compound (d). The present invention can provide a photocationically curable composition that can be rapidly cured at room temperature, can provide a cured material having high color tone stability, and is relatively resistant to gelation.

The photocationically curable composition of the present invention contains a cationically polymerizable monomer (a), a photo acid generator (b), a photosensitizer (c), and a thiophene compound (d). The present invention can provide a photocationically curable composition that can be rapidly cured at room temperature, can provide a cured material having high color tone stability, and is relatively resistant to gelation.

To enable firm bonding to a member including a polyaryl ether ketone resin. A bonding method including: a bonding material applying step for applying, to the surface of a member including a polyaryl ether ketone resin, a bonding material including (A) a polymerizable monomer and (B) at least a portion of components for configuring a polymerization initiator, the content ratio of polymerizable monomers at least having two or more polymerizable functional groups in a (p2) molecule among all polymerizable monomers being 50% by mass or greater, and the content ratio of polymerizable monomers at least having one or more polymerizable functional groups and one or more functional groups capable of hydrogen bonding in a (p1h1) molecule being 5% by mass or greater; and a curing step for curing the bonding material. A bonding material and bonding kit using the bonding method.