Hallelujah! An Orthodontist May Have Built the Better Mouth Trap: Invisible Braces
updated 10/22/1979 AT 01:00 AM EDT
•originally published 10/22/1979 AT 01:00 AM EDT
A breakthrough depended on the possibility of bonding a metal bracket directly to the enamel on the back side of each tooth, and that was Kurz' scheme. But by last June, when Kurz was ready for his first test, Cathy Worthington was no longer a patient. A mobile home salesman George Dumais 31 became Kurz' star guinea pig. Before setting the brackets, Kurz cleaned and conditioned Dumais' teeth with a weak solution of phosphoric acid to make them more porous. (Normal enamel is very smooth and won't bond, so Kurz removed an infinitesimal layer—about the amount Dumais would brush off in a year.) Then came an application of acrylic resin, which acted as the glue. Finally, Kurz strung a wire through the brackets to straighten the teeth or correct the bite as required.
Within three months Dumais saw progress. "Anything I have to say about the braces is positive," he exults. "I could jump up and down for joy. I hope Kurz makes a million." Another seeming success story is actress Mary Ann Hay, 29, who was fitted with the invisible braces and has worn them successfully while singing in a dinner theater production of The Music Man in Tustin, Calif.
Many of Kurz' colleagues are not yet convinced. But L.A.'s American Hospital, a medical supply and development firm, has gone ahead and manufactured 600 sets of the Kurz brackets—which the orthodontist of course patented. Newly available this month they will cost $2,500-$4,500 per set, roughly the same as traditional braces for adults.
Kurz, a Marina del Rey bachelor, was born in Moose Jaw, Saskatchewan, the son of a wheat farmer, and was trained at the University of Saskatchewan, then McGill and Columbia. Currently, he teaches at UCLA, maintains a private practice and is spreading the word of his invention on a cross-country lecture tour. Such promotion may be unnecessary. If Kurz has built the better mouth trap, the world will beat a path to his door.