Use of bioactive glass in dental filling material

Details Use of bioactive glass in dental filling material Use of bioactive glass in dental filling material

2006-08-15

2006-08-15

Koslow, C. Melissa (Department: 1755)

Compositions: coating or plastic

Coating or plastic compositions

Dental

C523S116000, C523S117000, C523S115000, C433S226000, C433S228100

Reexamination Certificate

active

07090720

ABSTRACT:
The dental filling material for a permanent dental filling contains up to 87 percent by weight of a mixture of bioactive glass particles capable of forming a hydroxylapatite layer and conventional non-bioactive dental glass particles surrounded or embedded in a matrix material. The glass particles have an average particle size (d50) less than 50 μm. When the index of refraction of the glass particles at least approximately matches the index of refraction of the matrix material a particularly attractive appearance results when the resulting filling material is used to make a dental filling. When the bioactive glass particles contain fluoride, protection against further caries is provided. The invention also includes a method of making the dental filling material, the dental filling made with it and a binder for binding the dental filling to a tooth.

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