| 摘要 |
PURPOSE: A ceramic primary tooth crown and a combining structure between the ceramic primary tooth crown and a front primary tooth of an upper jaw and a method thereof are provided to reduce the danger of tooth node fracture of the ceramic primary tooth crown, though the primary tooth crown has higher rigidity and larger brittleness and lower elastic property than a metal. CONSTITUTION: A ceramic primary tooth crown includes a concave part(101), a contour part(102), and a penetration hole(105). The concave part is inserted into an exposed contour part of a front primary tooth of upper jaw. The contour part is able to be matched with a front primary tooth of lower jaw matched with the front primary tooth of upper jaw. The penetration hole is formed in a tongue side(103) of the ceramic primary tooth crown facing with the tongue. |
