A dental curable composition which comprises a radically polymerizable monomer component (A), a polymerizing catalyst (B) and an inorganic granular material (C), characterized in that: the radically polymerizable monomer component (A) contains a bifunctional monomer (A-1) represented by the following formula (α),
R.sub.P—SP.sup.1—R.sub.P  (α) where, R.sub.P is a radically polymerizable group represented by CH.sub.2═C(R)—COO— or CH.sub.2═C(R)—CONH—, wherein R is a hydrogen atom or a hydrocarbon group having 1 to 3 carbon atoms, and SP.sup.1 is a hydrocarbon group having 5 to 15 carbon atoms, and the content of the bifunctional monomer (A-1) in the radically polymerizable monomer component (A) is 5 to 40% by mass under a condition that the content of a diluting monomer (A-2) represented by the following formula (β),
R.sub.P—SP.sup.2—R.sub.P  (β) where, R.sub.P is as defined in the above formula (α), and SP.sup.2 is an aliphatic hydrocarbon group different from SP.sup.1, an oxygen-containing aliphatic hydrocarbon group having not less than 2 oxygen atoms, or an oxygen-containing aromatic hydrocarbon group having not less than 3 oxygen atoms,
is zero or not more than 10% by mass.

A polymerisable dental composite material comprising (i) 70 to 85% by weight of an inorganic filler component comprising at least one dental glass and optionally at least one amorphous metal oxide, (ii) 10 to 30% by weight of at least one monomer comprising 1,3-bis(5′-alkyl-3′,8′-dioxo-2′-aza-4′,7′-dioxa-decyl-9′-en)phenyl and/or 1,3-bis(5′,9′-dialkyl-3′,8′-dioxo-2′-aza-4′,7′-dioxa-decyl-9′-en)phenyl, (iii) 0.01 to 5% by weight of at least one di-, tri-, tetra- or multi-functional monomer not being a urethane (meth)acrylate, (iv) 0.01 to 10% by weight of at least one initiator, of an initiator system and optionally of at least one stabilizer and optionally of at least one pigment, wherein the total composition of the composite material amounts to 100% by weight, and a polymerized composite material having a flexural strength of greater than or equal to 190 MPa and an elastic modulus of 12 to 21 GPa for the production of indirect dentures.

A polymerisable dental composite material comprising (i) 70 to 85% by weight of an inorganic filler component comprising at least one dental glass and optionally at least one amorphous metal oxide, (ii) 10 to 30% by weight of at least one monomer comprising 1,3-bis(5′-alkyl-3′,8′-dioxo-2′-aza-4′,7′-dioxa-decyl-9′-en)phenyl and/or 1,3-bis(5′,9′-dialkyl-3′,8′-dioxo-2′-aza-4′,7′-dioxa-decyl-9′-en)phenyl, (iii) 0.01 to 5% by weight of at least one di-, tri-, tetra- or multi-functional monomer not being a urethane (meth)acrylate, (iv) 0.01 to 10% by weight of at least one initiator, of an initiator system and optionally of at least one stabilizer and optionally of at least one pigment, wherein the total composition of the composite material amounts to 100% by weight, and a polymerized composite material having a flexural strength of greater than or equal to 190 MPa and an elastic modulus of 12 to 21 GPa for the production of indirect dentures.

A dental implant made of a material comprising titanium. The implant includes a head portion having a non-rotational feature, a lowermost end opposing the head portion, and a threaded bottom portion for engaging bone between the head portion implant and the lowermost end. The implant further includes a nanocrystalline surface formed on at least a portion of the implant. The nanocrystalline surface includes discrete nanocrystals deposited on a roughened surface of the implant. The roughened surface includes at least one of a grit-blasted surface or an acid-etched surface. A portion of the roughened surface is exposed between at least some of the discrete nanocrystals such that the exposed roughened portion between the discrete nanocrystals is capable of contacting bone.

A dental implant unit includes a layer of synthetically created titanium dioxide. The dental implant unit has one end for connection and a lateral surface covering the implant unit except for the end for connection. The lateral surface includes a layer of synthetically created titanium dioxide while the end for connection is free from synthetically created titanium dioxide. Also, a method produces a whitened implantable dental unit. The method includes thermal oxidation of a dental implant unit that includes titanium.

Dental crowns and methods of making the same. The dental crown may include a metal shell shaped to cover a portion of a tooth of a patient; a coating retention metal layer diffusion bonded to the metal shell, wherein an interface between the coating retention layer and the metal shell comprises a plurality of interstitial regions; and a composition on the coating retention layer and within the plurality of the interstitial regions to bond the coating composition to the metal shell.

Dental crowns and methods of making the same. The dental crown may include a metal shell shaped to cover a portion of a tooth of a patient; a coating retention metal layer diffusion bonded to the metal shell, wherein an interface between the coating retention layer and the metal shell comprises a plurality of interstitial regions; and a composition on the coating retention layer and within the plurality of the interstitial regions to bond the coating composition to the metal shell.

The invention relates to a two-part dual cure dental composition with improved stability toward discoloration and premature polymerization. The dental composition comprises a Base Part and a Catalyst Part, the Base Part comprising polymerizable component(s) without an acidic moiety, optionally polymerizable component(s) with an acidic moiety, filler(s), transition metal component(s), peroxide component(s), stabilizer component(s) comprising a free-radical moiety, the Catalyst Part comprising polymerizable component(s) without an acidic moiety, filler(s), ascorbic acid component, photo-initiator system, stabilizer component(s) comprising a phosphite or sulfite moiety. The dental composition is in particular useful as bulk fill dental composite, dental resin cement, core build-up dental material or self- and dual cure dental adhesive. The invention further relates to an initiator system and the use of a stabilizer comprising a free-radical moiety.

The invention relates to a two-part dual cure dental composition with improved stability toward discoloration and premature polymerization. The dental composition comprises a Base Part and a Catalyst Part, the Base Part comprising polymerizable component(s) without an acidic moiety, optionally polymerizable component(s) with an acidic moiety, filler(s), transition metal component(s), peroxide component(s), stabilizer component(s) comprising a free-radical moiety, the Catalyst Part comprising polymerizable component(s) without an acidic moiety, filler(s), ascorbic acid component, photo-initiator system, stabilizer component(s) comprising a phosphite or sulfite moiety. The dental composition is in particular useful as bulk fill dental composite, dental resin cement, core build-up dental material or self- and dual cure dental adhesive. The invention further relates to an initiator system and the use of a stabilizer comprising a free-radical moiety.

Methods for enhancing or accelerating osseointegration of an implant into bone marrow of a subject, the methods comprising increasing expression of peripheral clock neuronal PAS domain protein 2 (NPAS2) in the bone marrow, are provided. Expression of NPAS2 is increased by administration of a Npas2 modulating compound to the subject.