Japan Institute of Advanced Dentistry

Other

Kuraray Co., Ltd.

Mitsui Petrochemical Industries, Ltd.

Kureha Kagaku Kogyo Kabushiki Kaisha

Nippon Oil Fats Co., Ltd.

Hoya Lens Corporation

Japan Synthetic Rubber Co., Ltd.

Kuraray Medical Inc.

Hoya Lens Co., Ltd.

Eiichi Masuhara

Adell Co., Ltd.

Kuraray Noritake Dental Inc.

Shigeo Komiya

Junichi Yamauchi

Takeyuki Sawamoto

Nobuo Nakabayashi

Yoshinori Kadoma

Kyoichiro Shibatani

Niro Tarumi

Makoto Tsuchiya

Tooru Wada

Kiyomi Sanbonmatsu

Satoshi Yamaguchi

Koichi Okada

Takeshi Komai

Takeo Matsumoto

Osamu Nakachi

Eiichi Yamada

Godo Irukayama

Nobuo Bannai

Shusuke Kimura

Hiroyasu Hosoda

Koji Ozeki

Kensuke Nakajima

Noboru Nishiyama

Yumiko Satou

Morio Takeyama

Mizuho Maeda

Kunizoh Kidoh

Taro Suminoe

Hideyuki Yasumi

Tetsuo Ito

Kenji Hatanaka

Toru Nikaido

Khairul Matin

Katsuhisa Nagata

Iwao Hayakawa

Yuuichi Yokoyama

Hideo Sawada

Shin Makino

Junji Tagami

Satoko Maeda

A dental polymerizable composition comprising (a) a fluorine compound comprising a chain polymer having a main chain comprising a monomer unit having a hydrophilic group, and terminal groups comprising a fluoroalkyl group at each of both ends of the main chain; (b) a polymerizable monomer; and (c) a polymerization initiator. The dental polymerizable composition can be suitably used, for example, for dental composite resins, such as dental composite filler materials, crowning materials, and bonding materials; dental adhesive agents, such as teeth-straightening adhesive agents, cavity-coating adhesive agents, and tooth fissure sealing materials; denture base materials, denture base mucosal adjusting materials, fissure sealants, coating agents applied to tooth surface or dental prosthetic, surface glazes, and the like, and especially for various coating applications, for example, a fissure sealant, a coating agent to tooth surface or dental prosthetic, surface stains or a surface glaze, a hypersensitive inhibitor, a dental manicure, or the like.

Dental polymerizable composition

The first embodiment of present invention provides a composition, which includes: (a) a photocatalytic titanium oxide or a photocatalytic titanium oxide precursor; (b) at least one selected from the group including: wherein X, X, Xand Xeach independently represent an alkoxy group or a halogen atom, (c) a liquid medium. Another embodiment of the present invention provides a dental and oralogic composition, that includes a photocatalytic titanium oxide or a photocatalytic titanium oxide precursor. Another embodiment of the present invention provides a dental and oralogic composition, that includes a photocatalytic titanium oxide or a photocatalytic titanium oxide precursor, and a liquid medium. The composition of the present invention is particularly suitable in dental and oral care, and other embodiments of the present invention provide methods of making and using the above-described compositions.

Dental and oralogic composition

A fitting composition capable of fitting a body-worn tool to be used in contact with skin, such as spectacles, a hearing aid, and an artificial limb, suitably to the body shape of individual wearer and thereby realizing the function of the body-worn tool in a steady state, as well as providing an excellent wear-feeling, a body-worn tool produced using the same, and a method of producing the same. The fitting composition for body-worn tools to be used in contact with skin including (a) a thermoplastic block copolymer having at least one polymer block (A) mainly composed of an aromatic vinyl compound and at least one elastic polymer block (B); (b) a (meth)acrylic monomer; and (c) a polymerization initiator.

Fitting composition, body-worn tool produced using the same, and method for producing the same

A photopolymerizable adhesive consisting of Compound (1) which contains at least one (meth)acryloxy group as a polymerizing group in its molecule, and other structures constructed from the group(s) selected from the group consisting of alkyl group, alkyloxy group, polyalkoxy group, siloxanyl group and the substituted group thereof substituted by fluorine, hydroxy or alkoxy group; Compound (2) selected from (meth)acrylic acids, hydroxyalkyl (meth)acrylates, (meth)acryloxyalkyl succinic acids, trialkoxyvinyl silanes and .gamma.-(meth)acryloxyalkyl trialkoxy silanes; and Compound (3) selected from hydroxyacetophenones, acetophenones, glyoxy esters and camphorquinones, wherein said adhesive comprises 3 to 60 wt % of the compound (2), and 0.1 to 2 wt % of the Compound (3).

Photopolymerizable adhesive composition

Photopolymerization initiator for visible light-polymerizing adhesive

Photocuring adhesive containing an oligo siloxanyl di(meth)acrylate

Photosetting resin for making strong, tough resin articles

Disclosed herein are an orthodontic bracket which comprises a photopolymerization-type adhesive layered and fixed on a back surface portion of a bracket main body made of a light-transmitting material, a kit which comprises the bracket hermetically sealed in a light-shielding container, and a process for the adhesion of the bracket.

Process for adhesion of orthodontic bracket

A bracket for orthodontics having a bracket body made of a composite resin material and a thin layer of a synthetic resin material in a dental adhesive. The synthetic resin layer is laminated on the base surface of the bracket body in such a manner that the composite resin material of the bracket body and the synthetic resin of the thin layer are mingled with each other at the boundary therebetween. The thin resin layer is composed of polymethyl methacrylate having an average molecular weight of 1000,000 or less or a polymethacrylate copolymer.

Bracket for orthodontics

A method to continuousky harden light-curable resins, by irradiating at least one shaped article made of a light-curable resin by continuously moving the article past a multiplicity of light sources while changing the flux of the irradiated light in multiple steps corresponding to the moving positions of the object and an apparatus to accomplish this method including means to continuously move the article relative to the multiple irradiation sources and means to adjust the flux density in multiple steps corresponding to the moving positions of the article. Specifically, the flux density of the light irradiated on the moving article is changed stepwide depending upon the position and the location of the article and the polymerization speed of the article and the hardening depth can be controlled in relation to its position and time.

Method and apparatus for continuous hardening of light-curing resins

A method and apparatus to continuously harden articles made of visible light-curable resins, including continuously moving the articles to be hardened relative to a multiplicity of sources of visible light which are independently controllable to be able to vary the radiation to which the articles is exposed during its passage while independently controlling the temperature at which this takes place; and apparatus to accomplish this such that a large number of the objects to be irradiated passing through the hardening apparatus have the same exposure history to the visible light and to heating or cooling respectively. As the result, there is substantially no variation in the physical properties of these photo-polymerized products.

Method and apparatus for continuous hardening of visible light-curing

Dental light-curing resins are cured with light and under pressure by placing the uncured resin on a cast or mold or dental appliance to be prepared then covered with a transparent or translucent flexible membrane or sheet. In a chamber gas pressure is applied to the sheet and, in turn, to all parts of the underlying resin and, while pressurized, the resin is exposed to light to cure it.

Method for light curing of dental light-curing resins

A light curable dental composition is provided. The composition comprises an ethylenic unsaturated compound and a light polymerization initiator. The light polymerization initiator is a combination of an .alpha.-diketone and a polyperoxy ester containing a benzophenone group and represented by the general formula (I) of: ##STR1## wherein R.sub.1 and R.sub.1 ' represent a tertiary alkyl group or a tertiary aralkyl group and R.sub.2 and R.sub.2 ' represent a hydrogen atom, a tertiary alkoxy group or a tertiary aralkyloxy group.

Light curable dental composition

Disclosed is a pharmaceutical composition for use in desensitizing hypersensitive dentin or eliminating odontalgia comprising N-methacryloyl aminosalicylic acid as an active ingredient. The composition may further include an unsaturated compound and a polymerization initiator optionally for retaining the desensitizing effect.

Pharmaceutical composition for use in desensitizing hypersensitive dentin

Disclosed is a pharmaceutical composition for use in desensitizing hypersensitive dentin or eliminating odontalgia comprising N-methacryloyl aminosalicylic acid as an active ingredient. The composition may further include an unsaturated compound and a polymerization initiator optionally for retaining the densensitizing effect.

Growing community of inventors

Tokyo, Japan

Eiichi Masuhara