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US5037639A Expired / Lapsed US ⏱️ 0.0 years remaining

Methods and compositions for mineralizing calcified tissues

Assignee: American Dental Association
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Filing: 1989-05-24
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Granted: 1991-08-06
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Expires: 2009-05-24
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Abstract

Abstract This invention involves the use of amorphous calcium compounds such as: amorphous calcium phosphate (ACP), amorphous calcium phosphate fluoride (ACPF) and amorphous calcium carbonate phosphate (ACCP) for use in remineralizing teeth. These amorphous compounds or solutions which form the amorphous compounds, when applied either onto or into dental tissue prevent and/or repair dental weaknesses such as dental caries, exposed roots and dentin sensitivity. The compounds have the highest solubilities, fastest formation rates and fastest conversion rates (to apatite) among all the calcium phosphorate under physiological conditions. Moreover, in the presence to fluoride the amorphous compound convert rapidly to fluoride containing apatite.

Inventors

  • 👤 Ming S. Tung

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-23 16:57
CPC Classifications
C; C01; C01B; C01B25/00; C01B25/16; C01B25/26; C01B25/455; A; A61; A61K; A61K33/00; A61K33/06; A61K33/42; A61K6/00; A61K6/50; A61K6/54; A61K6/80; A61K6/831; A61K6/838; A61K6/849; A61K6/873; A61K8/00; A61K8/18; A61K8/19; A61K8/20; A61K8/21; A61K8/24; A61Q; A61Q11/00; C01F; C01F11/00; C01F11/20; C01F11/22

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 109 words
A method for treating and remineralizing the teeth through the formation of apatite onto and into the dental tissue comprising contacting a dental restorative with the teeth, said dental restorative comprising in combination: a carrier selected from the group of a gel, chewing gum, a powder, a mouth rinse, carbonated solution or a toothpaste for suspension of an amorphous calcium compound or solution which will form an amorphous calcium compound; and amorphous calcium phosphate or solutions which will form amorphous calcium phosphate suspended within said carrier, whereby when the combination is applied to the teeth, the amorphous calcium phosphate will precipitate into and on the teeth and form apatite.
Claim 2
Independent Claim 109 words
A method for treating and remineralizing the teeth through the formation of apatite onto and into the dental tissue comprising contacting a dental restorative with the teeth, said dental restorative comprising in combination: a carrier selected from the group of a gel, chewing gum, a powder, a mouth rinse, carbonated solution or a toothpaste for suspension of an amorphous calcium compound or solution which will form an amorphous calcium compound; and amorphous calcium phosphate or solutions which will form amorphous calcium phosphate suspended within said carrier, whereby when the combination is applied to the teeth, the amorphous calcium phosphate will precipitate into and on the teeth and form apatite.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1994-08-05 1995-02-04 1995-08-06 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1998-08-05 1999-02-04 1999-08-06 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2002-08-05 2003-02-04 2003-08-06 $7700.00 Window Closed / Lapsed

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