Columbia University School of Dental and Oral Surgery - Dental Columbian Yearbook (New York, NY)

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Dental Materials Herbert D. Avers Jr., A.B., D.D.S. Inst, in Dentistry Wise selection of materials becomes more complicated with the introduction of new prod- ucts. A new material will seem superior in some property to any established one. To refrain from hasty acceptance is difficult, to discard the new as untried is blind. Predict the action of new materials by using test data to make sound selec- tions. Dimensional stability remains a vital property to consider in a restorative material. If it cannot be placed easily, no one will use it, if it appears unesthetic or causes pain, no one will accept it. If it gradually changes its size, all the other properties are not enough to justify its use. Herbert D. Ayers, Jr. Dental History William H. Leak, D.D.S. Lecturer in Dental History Curator of the Museum Fifty years ago a good dentist was so rated by his ability to place a fine cohesive gold filling. The developments at that time were mainly of a mechanical nature. The main consideration was the need for good mastication to provide proper assimilation of food and thereby ensure good health. Dentistry had lost itself in its tech- nical aspects and became all but separated from the medical profession. Today while technical assets are being aug- mented, a great ilc.il of research in various sci- ences is directing thought to prevention of dental decay and improvement in general health. ii.liam 1 1. Leak Oral Pathology Lester R. Cahn, D.D.S. H. A. Barrels, Assoc. Prof, of Dental B.S., D.D.S. Pathology Asst. Prof, of Dental Pathology Clinical Research H. F. Silvers, B.S., D.D.S. Research Assoc. Dentistry Austin H. Kutscher, A.B, D.D.S. Clin. Asst. in Dentistry Bacteriology George Stein, M.D.. D..M.D. Research Assoc, in Dentistry o Biochemistry Theodor Roseburv, D.D.S. Assoc. Prof, of Bacteriology Maxwell Karshan, B.S., A.M., Ph.D. Assoc. Prof, of Biochemistry Oral Anatomy Joseph A. Cuttita, A.B.. M.S.. D.D.S. Asst. Prof, of Dentistry Edmund Applebaum, D.D.S. Assoc. Prof, of Dental Anatomy Alexander Seclig. B.S., D.D.S. Inst, in Anatomy 16

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Periodontics LW1NG C. McBEATH, D.D.S., B.S.. B.M.. M.D. Professor of Dentistry Ol Ck •s S. N. Rosenstein, B.S., D.D.S. Assoc. Prof, of DeMfistry William A. Verlin, A.B.. D.D.S. hist, in Dentistry - - E. S. Luboja. D.D.S. Julian Schroff. Hyman A. Citron, Asst. in Dentistry B.S.. D.D.S. B.S., D.D.S. Clin. Asst. in Dentistry Clin. Asst. in Dentistry Pedodontics has made phenomenal ss during the past fifty years; in deed, it has emerged I rum oblivion to me a fundamental and basic branch ol dentistry. All ol its efforts arc wholly preventive in nature, whether they be directed to the restoration ol diseased tooth structure or to guidance for sys temic or local control ol dental health. rhey arc effective during the stages of development and differentiation of hu- man beings, the formative periods ol life, physical and mental. This pre ventive branch of dentistry should be closely integrated with, but regarded as separate and distinct from, restorative dentistry. Its scope must be broadened continually to make our future dental practitioners more aware of their pro- fessional obligations. Columbia Univer- sity has maintained consistently this perspective, lor which it has been com- mended by observant visitors from all over the world. Ewing C. McBeath Orthodontics ARTHUR C. TOTTEN, D.D.S. Professor of Dentistry The practice of orthodontics as an exclusive specialty had its origin in America at the turn of the twentieth century. During the first quarter of the century, the concept of orthodontics was purely mechanical. It was not until 1924 when Dr. A. Le Roy Johnson presented his Basic Principles of Orthodontics, a biological concept, that the profession started to realize that orthodontics is the art and science which deals with the growth and development of the body as a whole and is based on anthropology, genetics, dietetics, clinical medicine, and most of the basic biological sciences. This opened up a new field of research on the face and cranium. Today, orthodontics is rapidly changing from its old mechanistic concept to the biologic; case analysis is primary, appliance therapy secondary to the whole problem. There are greater achievements ahead and hope of a brighter future. Arthur C. Totten ILrrv A. Gallon, D.D.S. James Jay. D.D.S. Asst. Clin. Prof, of hist, in Dentistry Dentistry Alex Hanson Inst, in Dental Technic 15

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Anatomy Samuel K. Detwiler, Ph.B.. A.M.. Ph.D., M.S. Prof, of Anatomy William M. Rogers, B.S.. Ph.D. Asst. Prof, of Anatomy Magnus I. Gregersen. A.B., A.M., Ph.D. DaUon Professor of Physiology Philip E. Smith. B.S M.S.. Ph.D.. Sc.D. Clin. Prof, of Anatomy V. M. C-.pcnhnvcr. .i: , Ph.D. Assoc. Prof, of Anatomy H. H. Shapiro. D.M.D. Asst. Prof, of Anat omy Henry Milch. A.B., M.D. Jusf. in Anatomy ' SIO W. S. Root. B.S.. Ph.D. Professor of Physiology John L. Xickerson, B.A.. M.A.. Ph.D. Professor of Physiology rh A. E. Scvcringhaus, A.M.. Ph.D. Prof, of Anatomy Julius K. Littman, M.D. Inst, in Anatomy Shih-Chun Wang. B.S.. M.D.. Ph.D. Assoc. Prof, of Physiology Pharmacology Neu roanatomy H. B. Van Dyke. Alfred Gellhom. M.D. Adolph Elwyn, L. V. Lyons. M.D. B.S.. Ph.D.. M.D. Assoc. Prof, of B.S.. A.M. Assoc, in Neurology Hosack Prof, of Pharmacology Assoc. Prof, of Pharmacology Neuroanatomy 17