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I. Kaufman Arenberg, MD

Arch Otolaryngol. 1970;92(4):406-410.

	Since this article does not have an abstract, we have provided the first 150 words of the full text PDF and any section headings.

THE scanning electron microscope (SEM) is a relatively new tool in the biomedical researcher's armamentarium. It differs significantly in design and range of application from the conventional or transmission electron microscope (TEM). The major use of the SEM is in the stereoscopic-like or three-dimensional analysis of biological surface structure in a continuous practical range of magnification from x20 to x50,000 with a resolution of approximately 300 to 500 Angstroms. The marked increase in conceptual or experential spatial information obtained from a given specimen is due to a 300-fold increase in the depth of field over other types of microscopy and to the shadowing effect of the secondarily emitted electrons. This allows the perception of depth in a two-dimensional photograph. The reader is referred to a general article on the biomedical uses of the SEM.¹

Except for "hard" dental tissues which were first studied in the early 1960's, little work . . . [Full Text PDF of this Article]

Author Affiliations
St. Louis

From the Department of Otolaryngology, Washington University School of Medicine, St. Louis.

Footnotes
Accepted for publication June 19, 1970.

Reprint requests to Department of Otolaryngology, Washington University School of Medicine, 517 S Euclid, St. Louis 63110.

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