Method of producing a dental mold
AssigneeMatsumoto Dental University
InventorAkihiro Kuroiwa
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Abstract
A dental mold is formed using, as a material, a mold material that formed a first mold having a first mold surface, and has a second mold surface different from the first mold surface. Alternatively, the material of the mold material contains powder after use obtained by grinding the first mold, and new powder added to the powder after use. The mold material is a quick heating type gypsum bonded mold material, and contains 1% of at least α gypsum. Alternatively, the mold material uses α gypsum at 25 to 45% and at least one of quartz and cristobalite at 55 to 75%. Further, the mold material contains one of chloride and alum as an additive.
Claims12
A method of producing a dental mold, the method comprising a first step of obtaining powder by grinding a first mold made of a mold material and having a first mold surface, and a second step of forming a second mold having a second mold surface different from said first mold surface, using said powder.
A method of forming a dental mold, comprising:
- forming a first mold with a first mold material having a first mold surface;
- thereafter, grinding the first mold to obtain a powder containing the first mold material;
- and
- thereafter, forming the dental mold with the powder obtained by grinding the first mold and with a second mold material that was not previously used to form the first mold or any other mold,
- wherein the dental mold has a second mold surface that is different in shape from the first mold surface that was used to form the first mold.
Dependencies are inferred from the claim text.