| 摘要 |
PROBLEM TO BE SOLVED: To provide a comparison set of a denture-base material, allowing a patient to select the optimum bed material while actually comparing the unusual sense of tongue or touch in his mouth due to the difference of the bed material and actually comparing the difference of the weight of dentures and the difference of the thinness of a bed in his hand due to the change of the bed material. SOLUTION: A spoon body 11, which is formed out of plural materials to produce a base, subjected to machining to have a fine unevenness on a recessed inside surface 11a, and finished to be slippery on a protruded outside surface 11b, is provided with plural sets of tongue sense testing plates y1-y4 being the same in shape on which a gripping portion 12 is integrally provided.
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