Dental crown shape test piece preparation instrument with controllable thickness

The utility model discloses a dental crown shape test piece preparation instrument with controllable thickness, which comprises a base, wherein a test piece fixing rotating table and a foundation column are arranged on the base. A bayonet controlled by a lower rotating nut and an upper rotating nut is arranged on the test piece fixing rotating table, and a mold base is arranged on the bayonet. A rotatable thickness controller is arranged on the foundation column and connected with an angle-shaped blade through a telescopic connecting rod. A horizontal cutter shaft capable of horizontally stretching and retracting penetrates through the foundation column, and a horizontal blade is arranged at one end of the horizontal cutter shaft close to the mold base. By means of the dental crown shape test piece preparation instrument, dental crown shape test pieces with controllable thickness can be manufactured, and high accurate control on the thickness of the dental crown shape test pieces is achieved. The dental crown