Glass ceramic dental crown and method of manufacturing the same

Details Glass ceramic dental crown and method of manufacturing the same Glass ceramic dental crown and method of manufacturing the same

1986-06-27

1989-01-24

Apley, Richard J.

Dentistry

Prosthodontics

Tooth construction

4332011, 501 3, 501 7, 501 57, A61C 1308, C03C 1016

Patent

active

047998873

ABSTRACT:
A dental crown is prepared from a dental crown material including 7 to 11% by weight of Li.sub.2 CO.sub.3, 18 to 28% by weight of MgO, 9 to 15% by weight of Al.sub.2 O.sub.3, 38 to 48% by weight of SiO.sub.2 and 10 to 15% by weight of Na.sub.2 SiF.sub.6. The dental crown material is melted and the molten material is molded in a lost wax mold. The molded material is crystallized to form the dental crown.

REFERENCES:
patent: 2933458 (1960-04-01), King et al.
patent: 4604059 (1986-08-01), Klaus et al.
patent: 4652312 (1987-03-01), Grossman et al.

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