Porcelain dental restoration method

摘要

An improved method of porcelain dental restoration is provided which gives strong, aesthetically pleasing restorations in a wide variety of contexts such as inlays, onlays or overlays. The method involves first preparing a tooth requiring restoration by removing the decayed portions and exposing dentin surface, whereupon a lining material (e.g. a glass ionomer) is applied to the exposed dentin. An impression of the patient's teeth is next taken, whereupon a refractory positive impression of the prepared tooth is fabricated. Next, a porcelain restoration is produced by appropriate layering and firing to give a restoration piece which substantially conforms to the shape of the originally decayed portion of the tooth. Finally, the porcelain restoration is fused to the natural tooth by means of fusing cement system which mechanically and chemcially bonds to porcelain, lining cement and adjacent enamel surfaces. The resultant dental restoration produces a restored tooth having a strength approaching that of the original tooth.