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  • Middle-ear surgical chisels designed to fenestrate the protruding part of the bone located in the skull behind the ear (i.e., mastoid process) and/or the mastoid cells. These chisels typically consist of a sturdy handheld, manual instrument including a flat blade with a cutting edge that is beveled on one side at the distal end and a proximal end appropriate to withstand mallet impacts. Mastoid chisels are used frequently in procedures intended to drain infection products from the mastoid cavity (i.e., mastoid antrum).
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