DENTAL PRODUCT FOR FORMING AN ENDODONTIC CEMENT
A dental product is provided for forming a hydroxyapatite-based endodontic cement in the presence of moisture. The formed cement is suitable for simple ultrasonic tip reworking.
1 .- 13 . (canceled)
14 . A dental product for forming an endodontic cement in a dental canal, said product comprising at least:
a powder composition in a mass content comprised between 40% and 55% comprising at least one calcium phosphate and able to form hydroxyapatite in the presence of moisture,
a binder in a mass content comprised between 0.5% and 5%, and
a liquid medium in a mass content comprised between 30% and 50%.
15 . The product as claimed in claim 14 , wherein the mass content of the powder composition is comprised between 43% and 52%.
16 . The product as claimed in claim 14 , wherein the powder composition comprises a mixture of dicalcium phosphate and tetracalcium phosphate.
17 . The product as claimed in claim 14 , wherein the powder composition has an average particle size D50 of less than or equal to 50 μm.
18 . The product as claimed in claim 14 , wherein the mass content of the binder is comprised between 0.5% and 3.5%.
19 . The product as claimed in claim 14 , further comprising a radiopaque contrast agent in a mass content of less than or equal to 15%.
20 . The product as claimed in claim 14 , further comprising a suspending agent in a mass content of less than or equal to 1.5%.
21 . The product as claimed in claim 14 , further comprising a cement setting accelerator in a mass content of less than or equal to 10%.
22 . The product as claimed in claim 14 , wherein:
the mass content of the powder composition is comprised between 43% and 52%,
the mass content of binder is comprised between 0.5% and 1%,
the liquid medium is non aqueous, and its mass content is comprised between 30% and 40%,
the product comprises a radiopaque contrast agent in a mass content comprised between 5% and 15%, and
the product comprises a cement setting accelerator in a mass content comprised between 4% and 7%.
23 . The product as claimed in claim 22 , wherein the radiopaque contrast agent comprises barium sulfate and wherein the mass content of the powder composition is comprised between 43% and 48%.
24 . The product as claimed in claim 22 , wherein the radiopaque contrast agent comprises zirconium oxide and wherein the mass content of the powder composition is comprised between 48% and 52%.
25 . The product as claimed in claim 14 , wherein:
the mass content of the powder composition is comprised between 43% and 52%,
the mass content of binder is comprised between 3% and 3.5%,
the liquid medium comprises water and its mass content is comprised between 30% and 40%, and
the product comprises a radiopaque contrast agent in a mass content comprised between 5% and 15%.
26 . A kit for filling and sealing a dental canal, comprising at least the product as claimed in claim 14 in an introduction device suitable for introducing the product into the dental canal.