Individual model fabrication in maxillofacial radiology.
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.
Lambrecht
J T
JT
Department of Oral Surgery, Oral Radiology and Oral Medicine, University of Basle, Switzerland.
Hammer
B
B
Jacob
A L
AL
Schiel
H
H
Hunziker
M
M
Kreusch
T
T
Kliegis
U
U
D000180:Acrylic Resins; D003775:Dental Polishing / Q000295:instrumentation; D005147:Facial Bones / Q000000981:diagnostic imaging*; D006801:Humans; D007834:Lasers; D008953:Models, Anatomic; D011861:Radiography, Dental / Q000295:instrumentation*; D013813:Therapy, Computer-Assisted; D014057:Tomography, X-Ray Computed / Q000295:instrumentation*
D000180:Acrylic Resins