| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a wax demolding device for forming a wax mould formed of wax for manufacturing continuous crowns or bridged denture for three or more teeth connected to each other in a single block casting method from a secondary plaster figure of a split restoration type model with a support base teeth model provided with dowel pins, or from the support base teeth model or split restoration type model formed of plaster correctly without deformation. SOLUTION: A device is of a balance type structure comprising hooks 3 respectively suspended to be inserted into space parts provided under connection parts between teeth in a wax mold W for continuous crowns or bridged denture in which three or more teeth are connected to each other on both sides of an arm 2 rotatably installed on a lower end of a holding rod 1 through an engagement member 4 and at positions of equal distances from an engagement position with the engagement member 4 for supporting the connection parts between teeth, and it may be additionally provided with a mode of changing the distance from the engagement member 4 to the suspension position of the hook 3 from the arm 2, a mode of fixing the arm 2 at a lower end of the holding rod 1, a mode of providing a light impact, and a mode of providing a constitution in which a number of hooks 3 exist.</p> |
