National Taiwan University

Min-Huey Chen

Wei-Fang Su

Sheng-Hao Hsu

Chein-Chih Lin

Shih-Po Sun

Yun-Yuan Tai

The invention provides an epoxy nanocomposite material for dental therapy, which can be applied to direct or indirect clinical restoration, dental core-post system, and dental brace etc. The epoxy nanocomposite filling material provided by the invention can be polymerized with various curing agents to form the polymer with low shrinkage.

Liquid crystalline epoxy nanocomposite material and application thereof

The present invention discloses an acrylate nanocomposite material which can apply to optoelectronic device encapsulation, dental restorations and light waveguide. The acrylate nanocomposite material comprises an inorganic nano-particle, an acrylate monomer with at least one acrylate group, an imidized acrylate oligomer and a photo-initiator. The acrylate nanocomposite material photopolymerizes to form an organic/inorganic 3D network wherein the absorption (%) is 0.01 to 5.00 and the permeability (g mm/mday) is 0.01 to 10.00 thereof. In addition, the transmittance of the nanocomposite is over 90%.

Acrylate nanocomposite material

A method of restoring a tooth cavity is conducted by a direct or indirect method with a visible light curable nanocomposite of a dental restorative material with a low polymerization shrinkage, wherein the dental restorative material comprises an epoxy resin, inorganic oxide nano particles, a photoinitiator and a photosensitizer. The direct method involves the filling of the tooth cavity with the nanocomposite dental restorative material, stacking the nanocomposite dental restorative material in the tooth cavity, and curing with visible light followed by shaping and polishing. The indirect method involves making a mold of the tooth, casting the mold with the nanocomposite dental restorative material, curing with visible light followed by shaping and polishing, then removing the shaped and polished material and adhering it to the tooth cavity.

Growing community of inventors

Taipei, Taiwan

Min-Huey Chen