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The instruments herewith presented are for use in radical operations on the sinuses, particularly the Caldwell-Luc operation.
Instrument 1 in figure 1 is a periosteal elevator. It is light and easily handled and may be used to good advantage in a Caldwell-Luc operation or an external operation on the frontal or ethmoid sinuses or in an antrotomy on the mastoid.
In performing a Caldwell-Luc operation the majority of operators now use the nearly vertical incision extending from high in the middle of the canine fossa to a point just above the first bicuspid tooth. After the periosteum has been elevated over a sufficiently large area, the retractor shown in figure 2 is placed with the teeth under the periosteum of the upper part of the incised tissue, thus holding the tissues well back on each side and sufficiently high to permit of making an opening of desired size into the antrum.