| 摘要 |
PROBLEM TO BE SOLVED: To provide a dental working model capable of improving horizontal engagement strength.SOLUTION: The dental working model comprises a fixing plate 6H, dowel pins 8 planted therein, and a support base 12H for supporting the fixing plate. The support base includes insertion holes 18 into which the dowel pins are inserted, on the upper face thereof; engagement protruding strips 25 and 78G provided on both edges on the upper face thereof; and a plurality of auxiliary engagement protrusions 33 provided between the pair of engagement protruding strips in substantially parallel to the engagement protruding strips and spaced at some intervals apart from one another. Corresponding thereto, the fixing plate includes engagement recessed strips 37 and 80G, and a plurality of auxiliary engagement recesses 45 disposed at corresponding positions on the lower face of the fixing plate. When the fixing plate is supported on the upper face of the support base, the engagement protruding strips are engaged with the engagement recessed strips, and the auxiliary engagement protrusions are engaged with the auxiliary engagement recesses mutually. |
