This article is the second in the two-part series comprising The Don Spring Memorial Oration delivered by Dr Patrick Turley at the Hamilton Island meeting of the Australian Foundation for Research and Education, in September 1992. The article has been reprinted with the permission of the Editor of the Pacific Coast Society of Orthodontists’ Bulletin. Both articles in the series have been smnmarized by Andrea L. Feature D.D.S., M.S..
© 2024 Patrick K. Turley, published by Australian Society of Orthodontists Inc.
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