Methods of treatment of the dental pulp and filling root canals using water-based material
AssigneeDENTSPLY SIRONA Inc.
InventorsCarolyn M. Primus, James L. Gutmann, Miklos M. Breuer, Steven R. Jefferies
Life of this patent
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Abstract
A dental composition comprising: a) about 1 to about 80% by weight of particulate material including: (i) calcium silicate, calcium aluminate, tetracalcium aluminoferrite, calcium phosphate, calcium sulfate, silica, alumina, calcium oxide, calcium hydroxide, or mixtures thereof; wherein the particulate material has an average particle size of less than 40 microns; and b) about 1 to about 50% by weight liquid carrier including: (i) water-soluble polymer, and (ii) water.
Claims32
A dental composition comprising:
- a) about 1 to about 80% by weight of particulate material including:
- (i) about 20 to about 80 wt. % tricalcium silicate;
- about 20 to about 50 wt. % dicalcium silicate;
- about 1 to about 20 wt. % tricalcium aluminate,
- about 1 to about 20 wt. % tetracalcium aluminoferrite;
- about 1 to about 15 wt. % of at least one of the following selected from the group consisting of calcium phosphate, calcium sulfate, silica, alumina, calcium oxide, calcium hydroxide, and mixtures thereof;
- and
- about 1 to about 50 wt. % radiopaque component;
- wherein the particulate material has an average particle size in the range of about 1 μm to about 40 μm and has a surface area in the range of 0.5 to 3.0 m2/q;
- and
- b) about 1 to about 50% by weight liquid carrier including:
- (i) water-soluble polymer;
- and
- (ii) water;
- wherein a ratio of the particulate material to the liquid carrier ranges from 1:1 to 2.5:1.
A method of treating a root canal in a tooth, comprising the steps of:
- a) preparing the root canal in the tooth to be treated,
- b) providing a particulate material comprising:
- (i) about 20 to about 80 wt. % tricalcium silicate;
- about 20 to about 50 wt. % dicalcium silicate;
- about 1 to about 20 wt. % tricalcium aluminate,
- about 1 to about 20 wt. % tetracalcium aluminoferrite;
- about 1 to about 15 wt. % of at least one of the following selected from the group consisting of calcium phosphate, calcium sulfate, silica, alumina, calcium oxide, calcium hydroxide, and mixtures thereof;
- and
- about 1 to about 50 wt. % radiopaque component;
- wherein the particulate material has an average particle size in the range of about 1 μm to about 40 μm and has a surface area in the range of 0.5 to 3.0 m2/g;
- c) providing about 1% to about 80% by weight of a liquid carrier including:
- (i) about 5 to about 40 wt. % water-soluble polymer;
- and
- (ii) water;
- and
- d) mixing the particulate material with the liquid carrier to form a dental composition;
- and
- e) introducing the composition into the tooth from coronal or apical openings.
A dental composition comprising:
- a) about 1 to about 80% by weight of particulate material including:
- (i) about 20 to about 50 wt. % dicalcium silicate;
- (ii) about 1 to about 20 wt. % tricalcium aluminate,
- (iii) about 1 to about 20 wt. % tetracalcium aluminoferrite;
- (iv) about 1 to about 15 wt. % calcium sulfate;
- and
- (v) about 1 to about 50 wt. % radiopaque component;
- and
- wherein the particulate material has an average particle size in the range of about 1 μm to about 40 μm and has a surface area in the range of 0.5 to 3.0 m2/q;
- b) about 1% to about 80% by weight of a liquid carrier including:
- (i) about 5% to about 40% a water-soluble polymer by weight based on weight of the composition and
- (ii) water;
- and
- wherein a ratio of the particulate material to the liquid carrier ranges from 3:1 to 5:1;
- and
- wherein the composition has a compressive strength of greater than 30 MPa.
Dependencies are inferred from the claim text.