Abstract
Orthopantomography has been used for the evaluation of pre-implant surgery. However, because this method can only examine the shape in two-dimension images, it has been difficult to make accurate evaluation of anatomical structures. Three-dimensional information is imperfect in this method as of the upper necessary structure and the alveolar bone extant. Therefore, Authers take pictures of CT (computer tomograph) using customized stent with the X-ray contrast, and examined three-dimensionally. Moreover, 3-D re-constructed image is made on the computer, and simulation with implant placemant. The results suggest that using this method, it could get information before the detailed art, and 3-D simulation can be very useful for dental implant procedure.
