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Dentomaxillofacial Radiology, Vol 24, Issue 3 147-154, Copyright © 1995 by British Institute of Radiology

ARTICLES

Individual model fabrication in maxillofacial radiology

J. T. Lambrecht, B. Hammer, A. L. Jacob, H. Schiel, M. Hunziker, T. Kreusch and U. Kliegis
Department of Oral Surgery, Oral Radiology and Oral Medicine, University of Basle, Switzerland.

Oral and maxillofacial surgery has long needed a methodology for accurate definition of the third dimension. The introduction of computer-aided tomography in the 1970s provided surgeons with multiple 2-D maps which they themselves had to conceptualize into a third dimension. The later advent of computerized summation of these data made it possible to display a perspective view of the third dimension on a TV monitor. CT, and more recently MRI, with the further analytical refinement afforded by software processing (interactive data presentation, contour detection and summation, hypothetical 3-D construction and interactive visualization) now provide the basic information that is needed for the fabrication of an individual model. Such models can be milled from a variety of materials. More recently, laser-hardened acrylic resins have been shown to be a useful alternative. Both systems are described and their advantages and disadvantages in the planning and performance of oral and maxillofacial surgical procedures are discussed.




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