Patent ID: 6855197

Claim:
A method of restoring a tooth cavity via a direct or indirect method with a visible light curable nanocomposite of a dental restorative material with a low polymerization shrinkage, wherein th dental restorative material comprises an epoxy resin, inorganic oxide nano particle, a photoinitiator and a photosensitizer; a) said direct method including the steps of: i) filling the light curable nano composite dental restorative material with a low polymerization shrink into the prior prepared tooth cavity; ii) stacking of the light curable nano composite dental restorative material with a low volvme polymerization shrinkage the tooth cavity; iii) applying curing visible light to initiate the polymerization process of the light curable nano comoos te dental restorative material with a low polymerization shrinkage; and iv) shaping and polishing of the light curablc nano composite dental restorative material with a low polymerzation shrinkage after the curing process; and b) said indirect method including the steps of: i) making a mold of the tooth after the cavity preparation; ii) casting of the mold with the light curable nano composite dental restorative material with low polymerization shrinkage; iii) applying curing visible light to initiate the polymerization process of the light curable nano composite dental restorative material with a low polymerization shrinkage; iv) shaping and polishing of the light curable nano composite dental restorative material with a low polymerization shrinkage after the curing process; and v) removing of shaped and polished nano composite dental restoarative material from the mold and adhering it to the tooth cavity of the patient.