Project Details


The long term of the proposed research is to develop a dental radiography
capable of reproducing a desired imaging geometry. The goals of the
proposed research are to develop a prototype system and to test it on dry
skulls. The patented robot control system (U.S. Patent #5, 113, 424) is capable of
reproducing imagery geometry by sensing the 3-D position of the head using
an electromagnetic sensor. A known X-ray source to tooth imaging geometry
allows it to reposition the source in real-time to achieve this desired
imaging geometry. In this way the imaging geometry can be reproduced
without mechanical connection of the patient to the X-ray system. The advantage of such a system is the ability to produce radiographs of the
entire mouth with a standardized imaging geometry that can used alone or
for subtraction radiography to detect subtle change in the dentition. A
system such as this can eventually be in place in a clinician's office. The goal of the proposed research is to demonstrate the feasibility of a
prototype robot's controlled X-ray system. There are 2 specific aims.
First, to develop a robot-controlled X-ray arm; second, to conduct trials
with dry skulls, to determine if standardized films created with this
system are a more accurate diagnostic tool. To achieve the first goal, an X-ray system will be modified and a study
conducted to determine how accurately the arm can be repositioned. To
achieve the second goal, radiographs will be taken on dry skulls. In this
trial the robot control system will be compared to a subtraction system
using occlusal stents. The anticipated outcome is that the robot control
system will produce more diagnostically meaningful radiographs and
subtraction images.
Effective start/end date9/30/929/29/94


  • National Institutes of Health
  • National Institutes of Health: $46,424.00


  • Medicine(all)
  • Dentistry(all)

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