PROBLEM TO BE SOLVED: To manufacture a prosthetic matter whose plaster mold is impressed comparatively simply and which is suitably fitted to a patient by correctly fitting the plaster mold to an articulator.;SOLUTION: A measuring instrument 18 being an upper jaw plaster mold arming tool is provided with: a transparent substrate 28 which functions as a base; a pendant lamina 31 which appears out at an upper jaw plaster mold 19 and integrally formed with a transparent substrate 28 mounted on a pair of right and left hamulus knotch parts 20r and 20l being the joint part of the lamina horizontalis ossis palatini and a palatum osseum/alveolar bone; a movable papilla incisiva supporting pin 37 to be fitted to the most raised part 21a of the papilla incisiva 21 appearing out at the upper jaw plaster mold 19, a positioning and fixing means 39 for positioning and fixing the pin 37 to the substrate 28; and a scale 41 formed at the substrate 28 for displaying the position of the pin 37. Moreover, the instrument 18 is provided with a pair of center baselines 43u and 43d formed to be two front and rear surfaces of the substrate 28 and extending in parallel from the center of the pendant lamina 31 toward the side of the papilla incisiva supporting pin and a side opposite to it; and a pendant pin 42 extending through and suspending from the pendant lamina 31.;COPYRIGHT: (C)2004,JPO
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