Composition for use as a filler in tooth filling and facing comp

Details Composition for use as a filler in tooth filling and facing comp Composition for use as a filler in tooth filling and facing comp

1974-02-20

1976-08-17

Lieberman, Allan

Compositions: coating or plastic

Coating or plastic compositions

Carbohydrate or derivative containing

106 35, 106 396, 106288B, 106300, 106303, 106306, 32 15, A61K 501, C08K 322, C08K 340

Patent

active

039752038

ABSTRACT:
A filler composition for tooth filling and facing compositions comprising (1) a finely divided inorganic material, and (2) a barium aluminosilicate glass or other glass having an effective amount of radiopaque oxide that renders the resultant glass radiopaque to X-rays used by dentists. The filler composition is mixed with an organic polymer such as methyl methacrylate to provide a tooth filling and facing composition having an outstanding combination of desirable properties including a color resembling that of natural teeth, a suitable index of refraction, hardness, wear resistant, a relatively low thermal expansion matching that of natural teeth, and being radiopaque to X-rays used by dentists.

REFERENCES:
patent: 2826778 (1974-07-01), Dietz
patent: 3305371 (1967-02-01), DE Lajorte
patent: 3467534 (1969-09-01), MacDowell
patent: 3503128 (1970-03-01), Boyd
patent: 3504437 (1970-08-01), Siegel
patent: 3541688 (1970-11-01), McLean et al.
patent: 3578470 (1971-05-01), Bahat et al.
patent: 3801344 (1974-04-01), Dietz
Thomas, Journal of the American Ceramic Society, vol. 33, pp. 35-44.

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