| 摘要 |
An apparatus and system are provided for registering a human jaw with a scanned image of the human jaw. The apparatus is repeatably attachable to the jaw and comprises a fiducial body. The surface of the fiducial body includes a plurality of feature regions and defines a fiducial plane. The fiducial body has a curved profile shaped to follow the curve of the jaw when the appliance is attached to the jaw. When the jaw is scanned with the appliance attached thereto, a representation of at least a portion of the surface of the fiducial body is identifiable as a boundary in the scanned image. A unique coordinate mapping between the fiducial body and the scanned image is determinable from the fiducial plane and the plurality of geometrical characteristics at least one and fewer than three feature regions. The system comprises a scanner and a data processor. |
