Abstract
In many articles on electrosurgery attention is called to the danger of necrosis of the bone if during the operative procedure the active electrode happens to come in contact with periosteum. I was aware of that risk when I started this work, a little over a year ago, in Dr. Francis White's clinic of the Manhattan Eye, Ear and Throat Hospital. I proceeded with great caution and soon found that osseous necrosis of the maxillary antrum can be avoided by a proper technic and by a proper selection of patients. TECHNIC At the Manhattan Eye, Ear and Throat Hospital my associates and I use a low voltage high frequency machine. It is probable that a high voltage machine is not suitable for electrosurgery on the antrum, because the higher the voltage the more readily will sparks occur at the cutting electrode, and such sparks tend to carbonize the margins of
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