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

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O i J tMm LESTER R. CAHN, D.D.S. Assoc. Prof, of Dentistry Hi XXV A. BARTELS, B.S., B.S., D.D.S. Instructor in Denlistrv MADELINr E. DIoNUS. MRS. E. RICHARDSON, Assistant to the Registrar In Charge of Social Service ORAL PATHOLOGY Sir William Osier once said, as a man ' s knowledge of pathology — so is his practice. This is eminently true. It is quite impossible to intelligently treat a disease or a lesion without first understanding its pathogenetic mechanism. Let us take an example in our own field, the dental granuloma. Examined under the microscope, we observe a defense on the part of the host, in the form of the cellular exudate which is present to combat the invasion of the bacteria and bacterial toxins. Coupled with this cellular activity there is a fibrous tissue reaction which forms a peripheral wall of further defense, and stimulates a denser ossification of the surrounding bone. This entire reaction tells us that the patient is capable of resisting the invasion of the periapical tissues and that the chances of saving a tooth so affected are very fair. Our knowledge of pathology also aids our diagnosis, and for this reason we are having more and more recourse to the pathology laboratory for help in obscure diagnostic problems. L. Cahn. ARTHUR N. CROSS Technician ROBERT WRONG Technician

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ftikvL HAROLD J. LEONARD, A.B., D.D.S. Professor of Dentistry WM. B. DUNNING, D.D.S. Professor of Dentistry ISADOR HIRSCHFELD, D.D.S. Assoc. Prof, of Dentistry HOUGHTON HOLLIDAV, A.B.. D.D.S. Acting Associate Dean and Assoc. Prof, of Dentistry PERIODONTIA Twenty half days of clinical time and twenty hours of class time are devoted to Periodontia. The clinical work is based on prophylactic technic which is taught in the sopho- more year. Ten half days in the junior year introduce the subject, while ten in the senior year give practice and experi- ence in it. Each of the junior half day sessions is introduced by a half hour talk or demonstration on some practical phase of the work. A set of approximately a dozen special instru- ments is required. The technic taught is conservative with but little emphasis on the so-called surgical methods. The class room time is devoted to a study of histopathology, etiology, symptomatology, and various treatments. Systemic relationships, mechanical defects of occlusion, and Vincent ' s infection are given special emphasis. The courses are designed to give students an appreciation and understanding of perio- dontal diseases and their treatment in relation to other phases of dentistry, and to make them competent to deal successfully with the ordinary run of cases in their practice. H. J. Leonard. MRS. M. G. McKENZIE, Assistant to the Dean MRS. A L. FITZGERALD Secretary to the Dean HENRY W. GILLETT, D.M.D. Professor of Dentistry WM. B. DUNNING, D.D.S. Professor of Dentistry

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ANATOMY SAMUEL R. DETWTLER, PHILIP E. SMITH, A. E. SEVERINGHAUS. R. LE G. CARPENTER. Ph.B., A.M., Ph.D., M.Sc. B.S., M.S., Ph.D. B.S., A.M., Ph.D. B.S., Ph.D. Professor of Anatomy Professor of Anatomy Asst. Prof, of Anatomy Asst. Prof, of Anatomy Anatomy introduces the freshman to the rigors of a crowded curriculum. The work in anatomy required of all freshman is divided into two separate courses; gross anatomy (300 hours) and microscopic anatomy (160 hours). The scope of the latter course is the study of tissues and organs via the route of the microscopic slide, dental and medical students being required to attend the same lectures but having separate laboratory sections. After the shock of an informal introduction to the cadaver, gross anatomy begins in earnest. Hours of intensive study and dissection in the laboratory initiate the student to this fascinating study, for the major part of any course in gross anatomy is the dissection supplemented by lectures and demonstrations. A rapid dissection of the upper extremity acquaints the inexperienced student with methods of dissection, giving him practice in the recognition of gross differences of tissues at the same time supplying him with an insight into the mechanics of the upper extremity — a trusty slave upon which a dentist must depend. WILLIAM M. ROGERS, B.S.. Ph.D. Asst. Prof, of Anatomy HARRY H. SHAPIRO, D.M.D. Instructor in Anatomy ABRAHAM FIRESTONE, A.B., M.D. Instructor in Anatomy