Combined reversible aqueous colloidal dental impression material
OwnerIkuji Yoshikawa, Yoshihisa Noro +1inventors
InventorsIkuji Yoshikawa, Yoshihisa Noro, Junji Okaneya
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Abstract
A combined reversible aqueous colloidal dental impression material comprising powdery agar-agar, water soluble starch, silicone oil, potassium sulfate, borax, perfume, pigment antiseptic and water. A process for preparing a combined reversible colloidal dental impression material by which powdery agar-agar, water soluble starch, silicone oil potassium sulfate, borax, perfume antiseptic and pigment are admixed under heating and agitation in the presence of water and the obtained mixture is homogenized.
Claims7
A reversible aqueous colloidal dental impression material emplaceable about a tooth for making an impression thereof, and which effectively bonds to an alginate solidifying material placed therearound in a combined impression process, said reversible impression material comprising:
- respective quantities of water and agar-agar;
- minor amounts of silicone oil and potassium sulfate for minimizing the formation of rough skin when said impression material is in contact with dental plaster;
- and
- a minor amount of water soluble starch sufficient for causing effective bonding between said impression material and said alginate solidifying material in a combined impression process.
A method of preparing a reversible aqueous colloidal dental impression material emplaceable about a tooth for making an impression thereof, and which effectively bonds to an alginate solidifying material placed therearound in a combined impression process, said method comprising the steps of:
- admixing and heating together respective quantities of water, agar-agar, minor quantities of silicone oil and potassium sulfate, and a minor amount of water soluble starch sufficient for causing effective bonding between said impression material and said solidifying material in a combined impression process, in order to form a sol-state viscous mass;
- and
- homogenizing said mass.
Dependencies are inferred from the claim text.